mirror of
https://github.com/VCMP-SqMod/SqMod.git
synced 2024-11-08 00:37:15 +01:00
Implement extraction and remaining data bindings.
This commit is contained in:
Sandu Liviu Catalin
parent
f53b5b348d
commit
ea751be7b1
@ -112,7 +112,7 @@ SqDataStatement SqDataSession::GetStatement(StackStrF & data)
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}
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// ------------------------------------------------------------------------------------------------
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SqDataStatement & SqDataStatement::UseEx(LightObj & obj, const std::string & name, Poco::Data::AbstractBinding::Direction dir)
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void SqDataStatement::UseEx(LightObj & obj, const std::string & name, Poco::Data::AbstractBinding::Direction dir)
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{
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//
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switch (obj.GetType())
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@ -122,42 +122,64 @@ SqDataStatement & SqDataStatement::UseEx(LightObj & obj, const std::string & nam
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case OT_FLOAT:
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case OT_BOOL:
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case OT_STRING: STHROWF("Use Bind(...) for non-reference types."); break;
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case OT_INSTANCE: {
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auto type = static_cast< AbstractStaticClassData * >(obj.GetTypeTag());
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// Integer reference?
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if (type == StaticClassTypeTag< SqDataBinding< SQInteger > >::Get())
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{
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addBind(new Poco::Data::ReferenceBinding< SQInteger >(obj.CastI< SqDataBinding< SQInteger > >()->mV, name, dir)); break;
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} // Float reference?
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else if (type == StaticClassTypeTag< SqDataBinding< SQFloat > >::Get())
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{
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addBind(new Poco::Data::ReferenceBinding< SQFloat >(obj.CastI< SqDataBinding< SQFloat > >()->mV, name, dir)); break;
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} // String reference?
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else if (type == StaticClassTypeTag< SqDataBinding< String > >::Get())
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{
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addBind(new Poco::Data::ReferenceBinding< String >(obj.CastI< SqDataBinding< String > >()->mV, name, dir)); break;
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} // Bool reference?
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else if (type == StaticClassTypeTag< SqDataBinding< bool > >::Get())
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{
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addBind(new Poco::Data::ReferenceBinding< bool >(obj.CastI< SqDataBinding< bool > >()->mV, name, dir)); break;
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} // Unknown!
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else
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{
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Var< LightObj >::push(SqVM(), obj);
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String type_name = SqTypeName(SqVM(), -1);
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sq_poptop(SqVM());
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STHROWF("Can't use (%s) values", type_name.c_str()); break;
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}
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} break;
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case OT_INSTANCE: UseInst_(obj, name, dir); break;
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default: STHROWF("Can't use (%s) values", SqTypeName(obj.GetType())); break;
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}
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//
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return *this;
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}
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// ------------------------------------------------------------------------------------------------
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SqDataStatement & SqDataStatement::BindEx(LightObj & obj, const std::string & name, Poco::Data::AbstractBinding::Direction dir)
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void SqDataStatement::UseInst_(LightObj & obj, const std::string & name, Poco::Data::AbstractBinding::Direction dir)
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{
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auto type = static_cast< AbstractStaticClassData * >(obj.GetTypeTag());
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// Integer reference?
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if (type == StaticClassTypeTag< SqDataBinding< SQInteger > >::Get())
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{
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addBind(new Poco::Data::ReferenceBinding< SQInteger >(obj.CastI< SqDataBinding< SQInteger > >()->mV, name, dir));
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} // Float reference?
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else if (type == StaticClassTypeTag< SqDataBinding< SQFloat > >::Get())
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{
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addBind(new Poco::Data::ReferenceBinding< SQFloat >(obj.CastI< SqDataBinding< SQFloat > >()->mV, name, dir));
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} // String reference?
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else if (type == StaticClassTypeTag< SqDataBinding< String > >::Get())
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{
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addBind(new Poco::Data::ReferenceBinding< String >(obj.CastI< SqDataBinding< String > >()->mV, name, dir));
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} // Bool reference?
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else if (type == StaticClassTypeTag< SqDataBinding< bool > >::Get())
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{
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addBind(new Poco::Data::ReferenceBinding< bool >(obj.CastI< SqDataBinding< bool > >()->mV, name, dir));
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} // Integer vector reference?
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else if (type == StaticClassTypeTag< SqVector< SQInteger > >::Get())
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{
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auto p = obj.CastI< SqVector< SQInteger > >();
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addBind(new Poco::Data::ReferenceBinding< std::vector< SQInteger > >(p->ValidRef(), name, dir));
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} // Float vector reference?
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else if (type == StaticClassTypeTag< SqVector< SQFloat > >::Get())
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{
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auto p = obj.CastI< SqVector< SQFloat > >();
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addBind(new Poco::Data::ReferenceBinding< std::vector< SQFloat > >(p->ValidRef(), name, dir));
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} // String vector reference?
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else if (type == StaticClassTypeTag< SqVector< String > >::Get())
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{
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auto p = obj.CastI< SqVector< String > >();
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addBind(new Poco::Data::ReferenceBinding< std::vector< String > >(p->ValidRef(), name, dir));
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} // Bool vector reference?
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else if (type == StaticClassTypeTag< SqVector< bool > >::Get())
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{
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// There is no point in having these
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// Their usefulness is limited and pointless compared to the number of specializations needed get them to work
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STHROWF("Boolean vectors are not implemented");
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} // Unknown!
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else
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{
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Var< LightObj >::push(SqVM(), obj);
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String type_name = SqTypeName(SqVM(), -1);
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sq_poptop(SqVM());
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STHROWF("Can't use (%s) values", type_name.c_str());
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}
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}
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// ------------------------------------------------------------------------------------------------
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void SqDataStatement::BindEx(LightObj & obj, const std::string & name, Poco::Data::AbstractBinding::Direction dir)
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{
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// Identify the object type
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switch (obj.GetType())
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@ -190,37 +212,154 @@ SqDataStatement & SqDataStatement::BindEx(LightObj & obj, const std::string & na
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addBind(new Poco::Data::CopyBinding<const char *>(str.mPtr, name, dir));
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} break;
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// Special?
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case OT_INSTANCE: {
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auto type = static_cast< AbstractStaticClassData * >(obj.GetTypeTag());
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// Integer reference?
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if (type == StaticClassTypeTag< SqDataBinding< SQInteger > >::Get())
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{
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addBind(new Poco::Data::CopyBinding< SQInteger >(*obj.CastI< SqDataBinding< SQInteger > >()->mV, name, dir)); break;
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} // Float reference?
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else if (type == StaticClassTypeTag< SqDataBinding< SQFloat > >::Get())
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{
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addBind(new Poco::Data::CopyBinding< SQFloat >(*obj.CastI< SqDataBinding< SQFloat > >()->mV, name, dir)); break;
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} // String reference?
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else if (type == StaticClassTypeTag< SqDataBinding< String > >::Get())
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{
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addBind(new Poco::Data::CopyBinding< String >(*obj.CastI< SqDataBinding< String > >()->mV, name, dir)); break;
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} // Bool reference?
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else if (type == StaticClassTypeTag< SqDataBinding< bool > >::Get())
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{
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addBind(new Poco::Data::CopyBinding< bool >(*obj.CastI< SqDataBinding< bool > >()->mV, name, dir)); break;
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} // Unknown!
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else
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{
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Var< LightObj >::push(SqVM(), obj);
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String type_name = SqTypeName(SqVM(), -1);
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sq_poptop(SqVM());
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STHROWF("Can't bind (%s) values", type_name.c_str()); break;
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}
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} break;
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case OT_INSTANCE: BindInst_(obj, name, dir); break;
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default: STHROWF("Can't bind (%s) values", SqTypeName(obj.GetType())); break;
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}
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//
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}
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// ------------------------------------------------------------------------------------------------
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void SqDataStatement::BindInst_(LightObj & obj, const std::string & name, Poco::Data::AbstractBinding::Direction dir)
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{
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auto type = static_cast< AbstractStaticClassData * >(obj.GetTypeTag());
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// Integer reference?
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if (type == StaticClassTypeTag< SqDataBinding< SQInteger > >::Get())
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{
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addBind(new Poco::Data::CopyBinding< SQInteger >(*obj.CastI< SqDataBinding< SQInteger > >()->mV, name, dir));
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} // Float reference?
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else if (type == StaticClassTypeTag< SqDataBinding< SQFloat > >::Get())
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{
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addBind(new Poco::Data::CopyBinding< SQFloat >(*obj.CastI< SqDataBinding< SQFloat > >()->mV, name, dir));
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} // String reference?
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else if (type == StaticClassTypeTag< SqDataBinding< String > >::Get())
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{
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addBind(new Poco::Data::CopyBinding< String >(*obj.CastI< SqDataBinding< String > >()->mV, name, dir));
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} // Bool reference?
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else if (type == StaticClassTypeTag< SqDataBinding< bool > >::Get())
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{
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addBind(new Poco::Data::CopyBinding< bool >(*obj.CastI< SqDataBinding< bool > >()->mV, name, dir));
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} // Integer vector reference?
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else if (type == StaticClassTypeTag< SqVector< SQInteger > >::Get())
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{
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addBind(new Poco::Data::CopyBinding< std::vector< SQInteger > >(obj.CastI< SqVector< SQInteger > >()->Valid(), name, dir));
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} // Float vector reference?
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else if (type == StaticClassTypeTag< SqVector< SQFloat > >::Get())
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{
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addBind(new Poco::Data::CopyBinding< std::vector< SQFloat > >(obj.CastI< SqVector< SQFloat > >()->Valid(), name, dir));
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} // String vector reference?
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else if (type == StaticClassTypeTag< SqVector< String > >::Get())
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{
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addBind(new Poco::Data::CopyBinding< std::vector< String > >(obj.CastI< SqVector< String > >()->Valid(), name, dir));
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} // Bool vector reference?
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else if (type == StaticClassTypeTag< SqVector< bool > >::Get())
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{
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// There is no point in having these
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// Their usefulness is limited and pointless compared to the number of specializations needed get them to work
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STHROWF("Boolean vectors are not implemented");
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} // Unknown!
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else
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{
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Var< LightObj >::push(SqVM(), obj);
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String type_name = SqTypeName(SqVM(), -1);
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sq_poptop(SqVM());
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STHROWF("Can't bind (%s) values", type_name.c_str());
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}
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}
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// ------------------------------------------------------------------------------------------------
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SqDataStatement & SqDataStatement::Into(LightObj & obj)
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{
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auto type = static_cast< AbstractStaticClassData * >(obj.GetTypeTag());
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// Integer reference?
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if (type == StaticClassTypeTag< SqDataBinding< SQInteger > >::Get())
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{
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addExtract(new Poco::Data::ReferenceExtraction< SQInteger >(obj.CastI< SqDataBinding< SQInteger > >()->mV));
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} // Float reference?
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else if (type == StaticClassTypeTag< SqDataBinding< SQFloat > >::Get())
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{
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addExtract(new Poco::Data::ReferenceExtraction< SQFloat >(obj.CastI< SqDataBinding< SQFloat > >()->mV));
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} // String reference?
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else if (type == StaticClassTypeTag< SqDataBinding< String > >::Get())
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{
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addExtract(new Poco::Data::ReferenceExtraction< String >(obj.CastI< SqDataBinding< String > >()->mV));
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} // Bool reference?
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else if (type == StaticClassTypeTag< SqDataBinding< bool > >::Get())
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{
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addExtract(new Poco::Data::ReferenceExtraction< bool >(obj.CastI< SqDataBinding< bool > >()->mV));
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} // Integer vector reference?
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else if (type == StaticClassTypeTag< SqVector< SQInteger > >::Get())
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{
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addExtract(new Poco::Data::ReferenceExtraction< std::vector< SQInteger > >(obj.CastI< SqVector< SQInteger > >()->ValidRef()));
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} // Float vector reference?
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else if (type == StaticClassTypeTag< SqVector< SQFloat > >::Get())
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{
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addExtract(new Poco::Data::ReferenceExtraction< std::vector< SQFloat > >(obj.CastI< SqVector< SQFloat > >()->ValidRef()));
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} // String vector reference?
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else if (type == StaticClassTypeTag< SqVector< String > >::Get())
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{
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addExtract(new Poco::Data::ReferenceExtraction< std::vector< String > >(obj.CastI< SqVector< String > >()->ValidRef()));
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} // Bool vector reference?
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else if (type == StaticClassTypeTag< SqVector< bool > >::Get())
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{
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// There is no point in having these
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// Their usefulness is limited and pointless compared to the number of specializations needed get them to work
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STHROWF("Boolean vectors are not implemented");
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} // Unknown!
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else
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{
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Var< LightObj >::push(SqVM(), obj);
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String type_name = SqTypeName(SqVM(), -1);
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sq_poptop(SqVM());
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STHROWF("Can't extract (%s) values", type_name.c_str());
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}
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return *this;
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}
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// ------------------------------------------------------------------------------------------------
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SqDataStatement & SqDataStatement::Into_(LightObj & obj, LightObj & def)
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{
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auto type = static_cast< AbstractStaticClassData * >(obj.GetTypeTag());
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// Integer reference?
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if (type == StaticClassTypeTag< SqDataBinding< SQInteger > >::Get())
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{
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addExtract(new Poco::Data::ReferenceExtraction< SQInteger >(obj.CastI< SqDataBinding< SQInteger > >()->mV, def.Cast< SQInteger >()));
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} // Float reference?
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else if (type == StaticClassTypeTag< SqDataBinding< SQFloat > >::Get())
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{
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addExtract(new Poco::Data::ReferenceExtraction< SQFloat >(obj.CastI< SqDataBinding< SQFloat > >()->mV, def.Cast< SQFloat >()));
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} // String reference?
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else if (type == StaticClassTypeTag< SqDataBinding< String > >::Get())
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{
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addExtract(new Poco::Data::ReferenceExtraction< String >(obj.CastI< SqDataBinding< String > >()->mV, def.Cast< String >()));
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} // Bool reference?
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else if (type == StaticClassTypeTag< SqDataBinding< bool > >::Get())
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{
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addExtract(new Poco::Data::ReferenceExtraction< bool >(obj.CastI< SqDataBinding< bool > >()->mV, def.Cast< bool >()));
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} // Integer vector reference?
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else if (type == StaticClassTypeTag< SqVector< SQInteger > >::Get())
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{
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addExtract(new Poco::Data::ReferenceExtraction< std::vector< SQInteger > >(obj.CastI< SqVector< SQInteger > >()->ValidRef(), def.Cast< SQInteger >()));
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} // Float vector reference?
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else if (type == StaticClassTypeTag< SqVector< SQFloat > >::Get())
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{
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addExtract(new Poco::Data::ReferenceExtraction< std::vector< SQFloat > >(obj.CastI< SqVector< SQFloat > >()->ValidRef(), def.Cast< SQFloat >()));
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} // String vector reference?
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else if (type == StaticClassTypeTag< SqVector< String > >::Get())
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{
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addExtract(new Poco::Data::ReferenceExtraction< std::vector< String > >(obj.CastI< SqVector< String > >()->ValidRef(), def.Cast< String >()));
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} // Bool vector reference?
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else if (type == StaticClassTypeTag< SqVector< bool > >::Get())
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{
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// There is no point in having these
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// Their usefulness is limited and pointless compared to the number of specializations needed get them to work
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STHROWF("Boolean vectors are not implemented");
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} // Unknown!
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else
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{
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Var< LightObj >::push(SqVM(), obj);
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String type_name = SqTypeName(SqVM(), -1);
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sq_poptop(SqVM());
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STHROWF("Can't extract (%s) values", type_name.c_str());
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}
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return *this;
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}
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@ -245,6 +384,8 @@ static void Register_POCO_Data_Binding(HSQUIRRELVM vm, Table & ns, const SQChar
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.Func(_SC("Set"), &Binding::SetEx)
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.Func(_SC("Bind"), &Binding::Bind)
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.Func(_SC("BindAs"), &Binding::BindAs)
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.Func(_SC("Use"), &Binding::Use)
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.Func(_SC("UseAs"), &Binding::UseAs)
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);
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}
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@ -252,7 +393,7 @@ static void Register_POCO_Data_Binding(HSQUIRRELVM vm, Table & ns, const SQChar
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void Register_POCO_Data(HSQUIRRELVM vm)
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{
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Table ns(vm);
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//Poco::Data::Keywords::into()
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// --------------------------------------------------------------------------------------------
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ns.Bind(_SC("Session"),
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Class< SqDataSession >(vm, SqPcDataSession::Str)
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@ -307,16 +448,27 @@ void Register_POCO_Data(HSQUIRRELVM vm)
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.Prop(_SC("Initialized"), &SqDataStatement::Initialized)
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.Prop(_SC("Paused"), &SqDataStatement::Paused)
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.Prop(_SC("Done"), &SqDataStatement::Done)
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.Prop(_SC("HasMoreDataSets"), &SqDataStatement::HasMoreDataSets)
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// Member Methods
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.Func(_SC("Add"), &SqDataStatement::Add)
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.Func(_SC("Execute"), &SqDataStatement::Execute)
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.Func(_SC("ExecuteAsync"), &SqDataStatement::ExecuteAsync)
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.Func(_SC("SetAsync"), &SqDataStatement::SetAsync)
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.Func(_SC("Reset"), &SqDataStatement::Reset)
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.Func(_SC("Use"), &SqDataStatement::Use)
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.Func(_SC("UseAs"), &SqDataStatement::UseAs)
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.Func(_SC("In"), &SqDataStatement::In)
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.Func(_SC("InAs"), &SqDataStatement::InAs)
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.Func(_SC("Out"), &SqDataStatement::Out)
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.Func(_SC("OutAs"), &SqDataStatement::OutAs)
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.Func(_SC("Bind"), &SqDataStatement::Bind)
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.Func(_SC("BindAs"), &SqDataStatement::BindAs)
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.Func(_SC("Io"), &SqDataStatement::Io)
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// Overloaded Member Methods
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.Overload(_SC("Execute"), &SqDataStatement::Execute)
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.Overload(_SC("Execute"), &SqDataStatement::Execute_)
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.Overload(_SC("ExecuteAsync"), &SqDataStatement::ExecuteAsync)
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.Overload(_SC("ExecuteAsync"), &SqDataStatement::ExecuteAsync_)
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.Overload(_SC("Into"), &SqDataStatement::Into)
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.Overload(_SC("Into"), &SqDataStatement::Into_)
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);
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// --------------------------------------------------------------------------------------------
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Register_POCO_Data_Binding< SQInteger, SqIntegerBinding >(vm, ns, _SC("IntBind"));
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@ -2,6 +2,7 @@
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// ------------------------------------------------------------------------------------------------
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#include "Core/Utility.hpp"
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#include "Library/Utils/Vector.hpp"
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// ------------------------------------------------------------------------------------------------
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#include <Poco/Data/Session.h>
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@ -102,7 +103,7 @@ template <class T> struct ReferenceBinding : public AbstractBinding
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/* --------------------------------------------------------------------------------------------
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* Reset the binding.
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*/
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void reset () override
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void reset() override
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{
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m_Bound = false;
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AbstractBinder::Ptr pBinder = getBinder();
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@ -116,6 +117,337 @@ private:
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bool m_Bound;
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};
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/* ------------------------------------------------------------------------------------------------
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* Implementation of AbstractBinding for shared ownership binding of values.
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* Because we cannot take references to script variables, we use this as a proxy.
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*/
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template <class T> struct ReferenceBinding<std::vector<T>> : public AbstractBinding
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{
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using ValType = std::vector<T>;
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using ValPtr = SharedPtr<ValType>;
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using Ptr = SharedPtr<Binding<ValType>>;
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using Iterator = typename ValType::const_iterator;
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/* --------------------------------------------------------------------------------------------
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* Base constructor.
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*/
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explicit ReferenceBinding(const ValPtr& val, const std::string& name = "", Direction direction = PD_IN)
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: AbstractBinding(name, direction), m_Value(val), m_Begin(), m_End()
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{
|
||||
if (PD_IN == direction && m_Value->size() == 0)
|
||||
{
|
||||
throw BindingException("It is illegal to bind to an empty data collection");
|
||||
}
|
||||
m_Begin = m_Value->begin();
|
||||
m_End = m_Value->end();
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Destructor.
|
||||
*/
|
||||
~ReferenceBinding() override = default;
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Retrieve columns occupied.
|
||||
*/
|
||||
SQMOD_NODISCARD std::size_t numOfColumnsHandled() const override
|
||||
{
|
||||
return TypeHandler<T>::size();
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Retrieve rows occupied.
|
||||
*/
|
||||
SQMOD_NODISCARD std::size_t numOfRowsHandled() const override
|
||||
{
|
||||
return m_Value->size();
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Check if binding is available.
|
||||
*/
|
||||
SQMOD_NODISCARD bool canBind() const override
|
||||
{
|
||||
return (m_Begin != m_End);
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Bind the value.
|
||||
*/
|
||||
void bind(std::size_t pos) override
|
||||
{
|
||||
poco_assert_dbg(!getBinder().isNull());
|
||||
poco_assert_dbg(canBind());
|
||||
TypeHandler<T>::bind(pos, *m_Begin, getBinder(), getDirection());
|
||||
++m_Begin;
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Reset the binding.
|
||||
*/
|
||||
void reset() override
|
||||
{
|
||||
m_Begin = m_Value->begin();
|
||||
m_End = m_Value->end();
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
ValPtr m_Value;
|
||||
Iterator m_Begin;
|
||||
Iterator m_End;
|
||||
};
|
||||
|
||||
/* ------------------------------------------------------------------------------------------------
|
||||
* Implementation of AbstractExtraction for shared ownership binding of values.
|
||||
* Because we cannot take references to script variables, we use this as a proxy.
|
||||
*/
|
||||
template <class T>
|
||||
class ReferenceExtraction: public AbstractExtraction
|
||||
{
|
||||
public:
|
||||
using ValType = T;
|
||||
using Result = SharedPtr<T>;
|
||||
using ValPtr = SharedPtr<ValType>;
|
||||
using Type = Extraction<ValType>;
|
||||
using Ptr = SharedPtr<Type>;
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Creates an Extraction object at specified position. Uses an empty object T as default value.
|
||||
*/
|
||||
explicit ReferenceExtraction(const Result& result, const Position& pos = Position(0))
|
||||
: AbstractExtraction(Limit::LIMIT_UNLIMITED, pos.value())
|
||||
, m_Result(result),m_Default(),m_Extracted(false),m_Null(false)
|
||||
{
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Creates an Extraction object at specified position. Uses the provided def object as default value.
|
||||
*/
|
||||
ReferenceExtraction(const Result& result, const T& def, const Position& pos = Position(0))
|
||||
: AbstractExtraction(Limit::LIMIT_UNLIMITED, pos.value())
|
||||
, m_Result(result), m_Default(def), m_Extracted(false), m_Null(false)
|
||||
{
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Creates an Extraction object at specified position. Uses the provided def object as default value.
|
||||
*/
|
||||
ReferenceExtraction(const Result& result, T&& def, const Position& pos = Position(0))
|
||||
: AbstractExtraction(Limit::LIMIT_UNLIMITED, pos.value())
|
||||
, m_Result(result), m_Default(std::move(def)), m_Extracted(false), m_Null(false)
|
||||
{
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Destroys the Extraction object.
|
||||
*/
|
||||
~ReferenceExtraction() override = default;
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Retrieve the number of columns handled.
|
||||
*/
|
||||
SQMOD_NODISCARD std::size_t numOfColumnsHandled() const override
|
||||
{
|
||||
return TypeHandler<T>::size();
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Retrieve the number of rows handled.
|
||||
*/
|
||||
SQMOD_NODISCARD std::size_t numOfRowsHandled() const override
|
||||
{
|
||||
return m_Extracted ? 1u : 0;
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Retrieve the number of rows allowed.
|
||||
*/
|
||||
SQMOD_NODISCARD std::size_t numOfRowsAllowed() const override
|
||||
{
|
||||
return 1u;
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Check if null.
|
||||
*/
|
||||
SQMOD_NODISCARD bool isNull(std::size_t /*row*/) const override
|
||||
{
|
||||
return m_Null;
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Extract the value.
|
||||
*/
|
||||
std::size_t extract(std::size_t pos) override
|
||||
{
|
||||
if (m_Extracted)
|
||||
{
|
||||
throw ExtractException("value already extracted");
|
||||
}
|
||||
|
||||
m_Extracted = true;
|
||||
AbstractExtractor::Ptr pExt = getExtractor();
|
||||
TypeHandler<T>::extract(pos, *m_Result, m_Default, pExt);
|
||||
m_Null = isValueNull<T>(*m_Result, pExt->isNull(pos));
|
||||
|
||||
return 1u;
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Reset state.
|
||||
*/
|
||||
void reset() override
|
||||
{
|
||||
m_Extracted = false;
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* See if a value was extracted.
|
||||
*/
|
||||
SQMOD_NODISCARD bool canExtract() const override
|
||||
{
|
||||
return !m_Extracted;
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Create a preparation instance for this type.
|
||||
*/
|
||||
AbstractPreparation::Ptr createPreparation(AbstractPreparator::Ptr& pPrep, std::size_t pos) override
|
||||
{
|
||||
return new Preparation<T>(pPrep, pos, *m_Result);
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
Result m_Result;
|
||||
T m_Default;
|
||||
bool m_Extracted;
|
||||
bool m_Null;
|
||||
};
|
||||
|
||||
/* ------------------------------------------------------------------------------------------------
|
||||
* Implementation of AbstractExtraction for shared ownership binding of values.
|
||||
* Because we cannot take references to script variables, we use this as a proxy.
|
||||
*/
|
||||
template <class T>
|
||||
class ReferenceExtraction<std::vector<T>>: public AbstractExtraction
|
||||
{
|
||||
public:
|
||||
using ValType = std::vector<T>;
|
||||
using Result = SharedPtr<std::vector<T>>;
|
||||
using ValPtr = SharedPtr<ValType>;
|
||||
using Type = Extraction<ValType>;
|
||||
using Ptr = SharedPtr<Type>;
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Creates an Extraction object at specified position. Uses an empty object T as default value.
|
||||
*/
|
||||
explicit ReferenceExtraction(const Result& result, const Position& pos = Position(0))
|
||||
: AbstractExtraction(Limit::LIMIT_UNLIMITED, pos.value())
|
||||
, m_Result(result), m_Default(), m_Nulls()
|
||||
{
|
||||
m_Result->clear();
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Creates an Extraction object at specified position. Uses the provided def object as default value.
|
||||
*/
|
||||
ReferenceExtraction(const Result& result, const T& def, const Position& pos = Position(0))
|
||||
: AbstractExtraction(Limit::LIMIT_UNLIMITED, pos.value())
|
||||
, m_Result(result), m_Default(def), m_Nulls()
|
||||
{
|
||||
m_Result->clear();
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Destroys the Extraction object.
|
||||
*/
|
||||
~ReferenceExtraction() override = default;
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Retrieve the number of columns handled.
|
||||
*/
|
||||
SQMOD_NODISCARD std::size_t numOfColumnsHandled() const override
|
||||
{
|
||||
return TypeHandler<T>::size();
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Retrieve the number of rows handled.
|
||||
*/
|
||||
SQMOD_NODISCARD std::size_t numOfRowsHandled() const override
|
||||
{
|
||||
return static_cast<std::size_t>(m_Result->size());
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Retrieve the number of rows allowed.
|
||||
*/
|
||||
SQMOD_NODISCARD std::size_t numOfRowsAllowed() const override
|
||||
{
|
||||
return getLimit();
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Check if null.
|
||||
*/
|
||||
SQMOD_NODISCARD bool isNull(std::size_t row) const override
|
||||
{
|
||||
try
|
||||
{
|
||||
return m_Nulls.at(row);
|
||||
}
|
||||
catch (std::out_of_range& ex)
|
||||
{
|
||||
throw RangeException(ex.what());
|
||||
}
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Extract the value.
|
||||
*/
|
||||
std::size_t extract(std::size_t pos) override
|
||||
{
|
||||
AbstractExtractor::Ptr ext = getExtractor();
|
||||
m_Result->push_back(m_Default);
|
||||
TypeHandler<T>::extract(pos, m_Result->back(), m_Default, ext);
|
||||
m_Nulls.push_back(isValueNull(m_Result->back(), ext->isNull(pos)));
|
||||
return 1u;
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Create a preparation instance for this type.
|
||||
*/
|
||||
AbstractPreparation::Ptr createPreparation(AbstractPreparator::Ptr& pPrep, std::size_t pos) override
|
||||
{
|
||||
return new Preparation<T>(pPrep, pos, m_Default);
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Reset state.
|
||||
*/
|
||||
void reset() override
|
||||
{
|
||||
m_Nulls.clear();
|
||||
}
|
||||
|
||||
protected:
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Retrieve the container with the extracted values.
|
||||
*/
|
||||
const std::vector<T>& result() const
|
||||
{
|
||||
return *m_Result;
|
||||
}
|
||||
|
||||
private:
|
||||
Result m_Result;
|
||||
T m_Default;
|
||||
std::deque< bool > m_Nulls;
|
||||
};
|
||||
|
||||
} // Namespace:: Data
|
||||
} // Namespace:: Poco
|
||||
|
||||
@ -256,6 +588,16 @@ template < class T > struct SqDataBinding
|
||||
*/
|
||||
SqDataBinding & SetEx(OptimalArg v) { SqDataBindingOpt< T >::Put(*mV, v); return *this; }
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Use the value to a statement.
|
||||
*/
|
||||
SqDataBinding & Use(SqDataStatement & stmt);
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Use the value to a statement with a specific name.
|
||||
*/
|
||||
SqDataBinding & UseAs(SqDataStatement & stmt, StackStrF & name);
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Bind the value to a statement.
|
||||
*/
|
||||
@ -551,7 +893,15 @@ struct SqDataStatement : public Statement
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Executes the statement synchronously or asynchronously.
|
||||
*/
|
||||
SQInteger Execute(bool reset)
|
||||
SQInteger Execute()
|
||||
{
|
||||
return static_cast< SQInteger >(execute(true));
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Executes the statement synchronously or asynchronously.
|
||||
*/
|
||||
SQInteger Execute_(bool reset)
|
||||
{
|
||||
return static_cast< SQInteger >(execute(reset));
|
||||
}
|
||||
@ -559,7 +909,16 @@ struct SqDataStatement : public Statement
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Executes the statement asynchronously.
|
||||
*/
|
||||
SqDataStatement & ExecuteAsync(bool reset)
|
||||
SqDataStatement & ExecuteAsync()
|
||||
{
|
||||
executeAsync(true);
|
||||
return *this;
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Executes the statement asynchronously.
|
||||
*/
|
||||
SqDataStatement & ExecuteAsync_(bool reset)
|
||||
{
|
||||
executeAsync(reset);
|
||||
return *this;
|
||||
@ -583,57 +942,155 @@ struct SqDataStatement : public Statement
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
*
|
||||
* Bind a reference to the statement.
|
||||
*/
|
||||
SqDataStatement & Use(LightObj & obj)
|
||||
{
|
||||
return UseEx(obj, String(), Poco::Data::AbstractBinding::PD_IN);
|
||||
UseEx(obj, String(), Poco::Data::AbstractBinding::PD_IN);
|
||||
return *this;
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
*
|
||||
* Bind a named reference to the statement.
|
||||
*/
|
||||
SqDataStatement & UseAs(LightObj & obj, StackStrF & name)
|
||||
{
|
||||
return UseEx(obj, String(name.mPtr, name.GetSize()), Poco::Data::AbstractBinding::PD_IN);
|
||||
UseEx(obj, String(name.mPtr, name.GetSize()), Poco::Data::AbstractBinding::PD_IN);
|
||||
return *this;
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
*
|
||||
* Internal function used internally to bind a reference to the statement.
|
||||
*/
|
||||
SqDataStatement & UseEx(LightObj & obj, const std::string & name, Poco::Data::AbstractBinding::Direction dir);
|
||||
void UseEx(LightObj & obj, const std::string & name, Poco::Data::AbstractBinding::Direction dir);
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
*
|
||||
* Internal function used internally to bind a instance reference to the statement.
|
||||
*/
|
||||
void UseInst_(LightObj & obj, const std::string & name, Poco::Data::AbstractBinding::Direction dir);
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Bind a value to the statement and mark it as input (i.e alias of Use).
|
||||
*/
|
||||
SqDataStatement & In(LightObj & obj)
|
||||
{
|
||||
return Use(obj);
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Bind a named value to the statement mark it as input (i.e alias of UseAs).
|
||||
*/
|
||||
SqDataStatement & InAs(LightObj & obj, StackStrF & name)
|
||||
{
|
||||
return UseAs(obj, name);
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Bind a reference to the statement and mark it as output.
|
||||
*/
|
||||
SqDataStatement & Out(LightObj & obj)
|
||||
{
|
||||
UseEx(obj, String(), Poco::Data::AbstractBinding::PD_OUT);
|
||||
return *this;
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Bind a named reference to the statement and mark it as output.
|
||||
*/
|
||||
SqDataStatement & OutAs(LightObj & obj, StackStrF & name)
|
||||
{
|
||||
UseEx(obj, String(name.mPtr, name.GetSize()), Poco::Data::AbstractBinding::PD_OUT);
|
||||
return *this;
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Bind a value to the statement.
|
||||
*/
|
||||
SqDataStatement & Bind(LightObj & obj)
|
||||
{
|
||||
return BindEx(obj, String(), Poco::Data::AbstractBinding::PD_IN);
|
||||
BindEx(obj, String(), Poco::Data::AbstractBinding::PD_IN);
|
||||
return *this;
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
*
|
||||
* Bind a named value to the statement.
|
||||
*/
|
||||
SqDataStatement & BindAs(LightObj & obj, StackStrF & name)
|
||||
{
|
||||
return BindEx(obj, String(name.mPtr, name.GetSize()), Poco::Data::AbstractBinding::PD_IN);
|
||||
BindEx(obj, String(name.mPtr, name.GetSize()), Poco::Data::AbstractBinding::PD_IN);
|
||||
return *this;
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
*
|
||||
* Internal function used internally to bind a value to the statement.
|
||||
*/
|
||||
SqDataStatement & BindEx(LightObj & obj, const std::string & name, Poco::Data::AbstractBinding::Direction dir);
|
||||
void BindEx(LightObj & obj, const std::string & name, Poco::Data::AbstractBinding::Direction dir);
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Internal function used internally to bind a instance value to the statement.
|
||||
*/
|
||||
void BindInst_(LightObj & obj, const std::string & name, Poco::Data::AbstractBinding::Direction dir);
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Bind a value to the statement and mark it as input/output.
|
||||
*/
|
||||
SqDataStatement & Io(LightObj & obj)
|
||||
{
|
||||
if (obj.GetType() == OT_INSTANCE)
|
||||
{
|
||||
UseInst_(obj, String(), Poco::Data::AbstractBinding::PD_IN_OUT);
|
||||
}
|
||||
else
|
||||
{
|
||||
Bind(obj);
|
||||
}
|
||||
return *this;
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Register a single extraction with the statement.
|
||||
*/
|
||||
SqDataStatement & Into(LightObj & obj);
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Register a single extraction with the statement with a default value.
|
||||
*/
|
||||
SqDataStatement & Into_(LightObj & obj, LightObj & def);
|
||||
|
||||
/* --------------------------------------------------------------------------------------------
|
||||
* Returns false if the current data set index points to the last data set. Otherwise, it returns true.
|
||||
*/
|
||||
bool HasMoreDataSets() const
|
||||
{
|
||||
return hasMoreDataSets();
|
||||
}
|
||||
};
|
||||
|
||||
// ------------------------------------------------------------------------------------------------
|
||||
template < class T > inline SqDataBinding< T > & SqDataBinding< T >::Use(SqDataStatement & stmt)
|
||||
{
|
||||
stmt.addBind(new Poco::Data::ReferenceBinding< T >(mV, String(), Poco::Data::AbstractBinding::PD_IN));
|
||||
return *this;
|
||||
}
|
||||
|
||||
// ------------------------------------------------------------------------------------------------
|
||||
template < class T > inline SqDataBinding< T > & SqDataBinding< T >::UseAs(SqDataStatement & stmt, StackStrF & name)
|
||||
{
|
||||
stmt.addBind(new Poco::Data::ReferenceBinding< T >(mV, name.ToStr(), Poco::Data::AbstractBinding::PD_IN));
|
||||
return *this;
|
||||
}
|
||||
|
||||
// ------------------------------------------------------------------------------------------------
|
||||
template < class T > inline SqDataBinding< T > & SqDataBinding< T >::Bind(SqDataStatement & stmt)
|
||||
{
|
||||
stmt.addBind(new Poco::Data::CopyBinding< T >(*mV, String(), Poco::Data::AbstractBinding::PD_IN));
|
||||
return *this;
|
||||
}
|
||||
|
||||
// ------------------------------------------------------------------------------------------------
|
||||
template < class T > inline SqDataBinding< T > & SqDataBinding< T >::BindAs(SqDataStatement & stmt, StackStrF & name)
|
||||
{
|
||||
stmt.addBind(new Poco::Data::CopyBinding< T >(*mV, name.ToStr(), Poco::Data::AbstractBinding::PD_IN));
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user