A class that models a Function expression. More...
#include <Function.h>
Public Types | |
typedef R | ReturnType |
typedef QueryVisitor | VisitorType |
Public Member Functions | |
virtual ReturnType | accept (VisitorType &guest) const =0 |
It call the visit method from the guest object. More... | |
void | add (Expression *arg) |
It adds the argument to the function list of arguments. More... | |
Expression * | clone () const |
It creates a new copy of this expression. More... | |
TE_DEFINE_VISITABLE | Function (const std::string &name) |
Constructor. More... | |
Function (const Function &rhs) | |
Copy constructor. More... | |
Expression * | getArg (std::size_t i) const |
It returns the i-th function argument. More... | |
const std::string & | getName () const |
It returns the function name. More... | |
std::size_t | getNumArgs () const |
It returns the number of arguments informed to the function. More... | |
Function & | operator= (const Function &rhs) |
Expression * | operator[] (std::size_t i) const |
It returns the i-th function argument. More... | |
virtual | ~Function () |
Virtual Destructor. More... | |
Protected Attributes | |
std::vector< Expression * > | m_args |
The list of arguments. More... | |
std::string | m_name |
The function name. May be an operator symbol or just a regular name like ST_Intersects. More... | |
A class that models a Function expression.
Definition at line 47 of file Function.h.
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inherited |
Definition at line 58 of file BaseVisitable.h.
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inherited |
Definition at line 57 of file BaseVisitable.h.
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inline |
Constructor.
name | The function name. |
Definition at line 60 of file Function.h.
te::da::Function::Function | ( | const Function & | rhs | ) |
Copy constructor.
Definition at line 33 of file Function.cpp.
References te::common::Clone(), and m_args.
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virtual |
Virtual Destructor.
Definition at line 39 of file Function.cpp.
References te::common::FreeContents().
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pure virtualinherited |
It call the visit method from the guest object.
guest | The guest or visitor. |
void te::da::Function::add | ( | Expression * | arg | ) |
It adds the argument to the function list of arguments.
arg | The argument to be added. |
Definition at line 79 of file Function.cpp.
Referenced by te::map::QueryEncoder::getExpression(), te::da::ObjectIdSet::getExpressionByInClause(), te::da::ObjectIdSet::setExpressionByInClause(), and te::map::QueryEncoder::visit().
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virtual |
It creates a new copy of this expression.
Implements te::da::Expression.
Reimplemented in te::da::ST_Area, te::da::ST_Length, te::da::ST_Perimeter, te::da::ST_Buffer, te::da::In, te::da::ST_DistanceBuffer, te::da::ST_Relate, te::da::ST_Centroid, te::da::ST_ConvexHull, te::da::ST_Envelope, te::da::LessThanOrEqualTo, te::da::ST_Contains, te::da::ST_Beyond, te::da::ST_DWithin, te::da::GreaterThan, te::da::GreaterThanOrEqualTo, te::da::LessThan, te::da::Mul, te::da::Not, te::da::NotEqualTo, te::da::Or, te::da::ST_Crosses, te::da::ST_Difference, te::da::ST_Disjoint, te::da::ST_EnvelopeIntersects, te::da::ST_Equals, te::da::ST_Intersection, te::da::ST_Intersects, te::da::ST_Overlaps, te::da::ST_Touches, te::da::ST_Transform, te::da::ST_Within, te::da::Sub, te::da::IsNull, te::da::Max, te::da::Min, te::da::ST_Boundary, te::da::ST_Collect, te::da::ST_Dump, te::da::ST_DumpRings, te::da::ST_MakePolygon, te::da::ST_NumGeometries, te::da::ST_Union, te::da::StdDev, te::da::Sum, te::da::Variance, te::da::Like, te::da::UnaryFunction, te::da::UnaryOp, and te::da::Substring.
Definition at line 57 of file Function.cpp.
Referenced by te::da::FromFunctionCall::FromFunctionCall().
te::da::Expression * te::da::Function::getArg | ( | std::size_t | i | ) | const |
It returns the i-th function argument.
i | The argument position. |
Definition at line 67 of file Function.cpp.
Referenced by te::da::SpatialRestrictionVisitor::getGeometryRestriction(), te::da::SpatialRestrictionVisitor::getPropertyName(), te::da::SpatialRestrictionVisitor::isFromEnvelope(), and te::serialize::xml::Save().
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inline |
It returns the function name.
Definition at line 79 of file Function.h.
Referenced by te::da::AttributeRestrictionVisitor::getOperator(), te::da::SpatialRestrictionVisitor::getSpatialRelation(), te::da::AttributeRestrictionVisitor::isAttributeRestrictionFunction(), te::da::SpatialRestrictionVisitor::isSpatialRestrictionFunction(), te::serialize::xml::Save(), te::da::SpatialQueryProcessor::supportsSpatialTopologicOperatos(), te::ogr::SQLVisitor::visit(), and te::da::SQLVisitor::visit().
std::size_t te::da::Function::getNumArgs | ( | ) | const |
It returns the number of arguments informed to the function.
Definition at line 62 of file Function.cpp.
Referenced by te::da::ObjectIdSet::getExpressionByInClause(), te::da::SpatialRestrictionVisitor::getGeometryRestriction(), te::da::SpatialRestrictionVisitor::getPropertyName(), te::da::SpatialRestrictionVisitor::isFromEnvelope(), te::serialize::xml::Save(), te::da::ObjectIdSet::setExpressionByInClause(), te::da::FunctionNoArgsEncoder::toSQL(), te::da::UnaryOpEncoder::toSQL(), te::da::BinaryOpEncoder::toSQL(), te::da::FunctionEncoder::toSQL(), te::da::TemplateEncoder::toSQL(), te::ogr::SQLVisitor::visit(), te::da::AttributeRestrictionVisitor::visit(), te::da::SpatialRestrictionVisitor::visit(), and te::da::SQLVisitor::visit().
te::da::Function & te::da::Function::operator= | ( | const Function & | rhs | ) |
Assignment operator.
Definition at line 44 of file Function.cpp.
References te::common::Clone(), te::common::FreeContents(), m_args, and m_name.
Referenced by te::da::Substring::operator=(), te::da::Like::operator=(), te::da::UnaryFunction::operator=(), te::da::BinaryFunction::operator=(), te::da::ST_Transform::operator=(), te::da::ST_Envelope::operator=(), te::da::ST_Centroid::operator=(), te::da::ST_ConvexHull::operator=(), te::da::ST_Relate::operator=(), te::da::ST_DistanceBuffer::operator=(), te::da::In::operator=(), te::da::ST_Buffer::operator=(), te::da::ST_Perimeter::operator=(), te::da::ST_Length::operator=(), and te::da::ST_Area::operator=().
te::da::Expression * te::da::Function::operator[] | ( | std::size_t | i | ) | const |
It returns the i-th function argument.
i | The argument position. |
Definition at line 73 of file Function.cpp.
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protected |
The list of arguments.
Definition at line 118 of file Function.h.
Referenced by te::da::BinaryFunction::BinaryFunction(), Function(), te::da::Like::Like(), operator=(), te::da::ST_Area::ST_Area(), te::da::ST_Buffer::ST_Buffer(), te::da::ST_Centroid::ST_Centroid(), te::da::ST_ConvexHull::ST_ConvexHull(), te::da::ST_DistanceBuffer::ST_DistanceBuffer(), te::da::ST_Envelope::ST_Envelope(), te::da::ST_Length::ST_Length(), te::da::ST_Perimeter::ST_Perimeter(), te::da::ST_Relate::ST_Relate(), te::da::ST_Transform::ST_Transform(), te::da::Substring::Substring(), and te::da::UnaryFunction::UnaryFunction().
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protected |
The function name. May be an operator symbol or just a regular name like ST_Intersects.
Definition at line 117 of file Function.h.
Referenced by operator=().