QGIS API Documentation
2.2.0-Valmiera
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#include <qgsexpression.h>
Public Member Functions | |
NodeFunction (int fnIndex, NodeList *args) | |
virtual | ~NodeFunction () |
int | fnIndex () const |
NodeList * | args () const |
virtual NodeType | nodeType () const |
virtual bool | prepare (QgsExpression *parent, const QgsFields &fields) |
virtual QVariant | eval (QgsExpression *parent, const QgsFeature *f) |
virtual QString | dump () const |
virtual QStringList | referencedColumns () const |
virtual bool | needsGeometry () const |
virtual void | accept (Visitor &v) const |
Public Member Functions inherited from QgsExpression::Node | |
virtual | ~Node () |
Protected Attributes | |
int | mFnIndex |
NodeList * | mArgs |
Definition at line 480 of file qgsexpression.h.
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inline |
Definition at line 483 of file qgsexpression.h.
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inlinevirtual |
Definition at line 485 of file qgsexpression.h.
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inlinevirtual |
Implements QgsExpression::Node.
Definition at line 497 of file qgsexpression.h.
References QgsExpression::Visitor::visit().
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inline |
Definition at line 488 of file qgsexpression.h.
Referenced by QgsOgcUtils::expressionFunctionToOgcFilter(), and geometryFromConstExpr().
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virtual |
Implements QgsExpression::Node.
Definition at line 2224 of file qgsexpression.cpp.
References QgsExpression::Functions(), QgsExpression::Function::name(), and QgsExpression::Function::params().
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virtual |
Implements QgsExpression::Node.
Definition at line 2185 of file qgsexpression.cpp.
References ENSURE_NO_EVAL_ERROR, QgsExpression::Node::eval(), QgsExpression::Function::func(), QgsExpression::Functions(), isNull(), and QgsExpression::Function::name().
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inline |
Definition at line 487 of file qgsexpression.h.
Referenced by QgsOgcUtils::expressionFunctionToOgcFilter(), geometryFromConstExpr(), and isGeometryColumn().
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inlinevirtual |
Implements QgsExpression::Node.
Definition at line 496 of file qgsexpression.h.
References QgsExpression::Node::needsGeometry().
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inlinevirtual |
Implements QgsExpression::Node.
Definition at line 490 of file qgsexpression.h.
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virtual |
Implements QgsExpression::Node.
Definition at line 2211 of file qgsexpression.cpp.
References QgsExpression::Node::prepare().
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inlinevirtual |
Implements QgsExpression::Node.
Definition at line 495 of file qgsexpression.h.
References QgsExpression::Node::referencedColumns().
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protected |
Definition at line 502 of file qgsexpression.h.
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protected |
Definition at line 501 of file qgsexpression.h.