Join definition. More...
#include <qgssqlstatement.h>
Public Member Functions | |
| NodeJoin (NodeTableDef *tabledef, Node *onExpr, JoinType type) | |
| Constructor with table definition, ON expression. More... | |
| NodeJoin (NodeTableDef *tabledef, QList< QString > usingColumns, JoinType type) | |
| Constructor with table definition and USING columns. More... | |
| virtual | ~NodeJoin () |
| virtual void | accept (Visitor &v) const override |
| Support the visitor pattern. More... | |
| virtual Node * | clone () const override |
| Generate a clone of this node. More... | |
| NodeJoin * | cloneThis () const |
| Clone with same type return. More... | |
| virtual QString | dump () const override |
| Abstract virtual dump method. More... | |
| virtual NodeType | nodeType () const override |
| Abstract virtual that returns the type of this node. More... | |
| Node * | onExpr () const |
| On expression. More... | |
| NodeTableDef * | tableDef () const |
| Table definition. More... | |
| JoinType | type () const |
| Join type. More... | |
| QList< QString > | usingColumns () const |
| Columns referenced by USING. More... | |
 Public Member Functions inherited from QgsSQLStatement::Node | |
| virtual | ~Node () |
Protected Attributes | |
| Node * | mOnExpr |
| NodeTableDef * | mTableDef |
| JoinType | mType |
| QList< QString > | mUsingColumns |
Detailed Description
Join definition.
Definition at line 576 of file qgssqlstatement.h.
Constructor & Destructor Documentation
◆ NodeJoin() [1/2]
|
inline |
Constructor with table definition, ON expression.
Definition at line 580 of file qgssqlstatement.h.
◆ NodeJoin() [2/2]
|
inline |
Constructor with table definition and USING columns.
Definition at line 582 of file qgssqlstatement.h.
◆ ~NodeJoin()
|
inlinevirtual |
Definition at line 583 of file qgssqlstatement.h.
Member Function Documentation
◆ accept()
|
inlineoverridevirtual |
Support the visitor pattern.
For any implementation this should look like
C++:
v.visit( *this );
Python:
v.visit( self)
- Parameters
-
v A visitor that visits this node.
Implements QgsSQLStatement::Node.
Definition at line 600 of file qgssqlstatement.h.
◆ clone()
|
overridevirtual |
Generate a clone of this node.
Make sure that the clone does not contain any information which is generated in prepare and context related. Ownership is transferred to the caller.
- Returns
- a deep copy of this node.
Implements QgsSQLStatement::Node.
Definition at line 659 of file qgssqlstatement.cpp.
◆ cloneThis()
| QgsSQLStatement::NodeJoin * QgsSQLStatement::NodeJoin::cloneThis | ( | ) | const |
Clone with same type return.
Definition at line 664 of file qgssqlstatement.cpp.
◆ dump()
|
overridevirtual |
Abstract virtual dump method.
- Returns
- A statement which represents this node as string
Implements QgsSQLStatement::Node.
Definition at line 628 of file qgssqlstatement.cpp.
◆ nodeType()
|
inlineoverridevirtual |
Abstract virtual that returns the type of this node.
- Returns
- The type of this node
Implements QgsSQLStatement::Node.
Definition at line 597 of file qgssqlstatement.h.
◆ onExpr()
|
inline |
On expression.
Will be nullptr if usingColumns() is not empty
Definition at line 589 of file qgssqlstatement.h.
◆ tableDef()
|
inline |
Table definition.
Definition at line 586 of file qgssqlstatement.h.
◆ type()
|
inline |
Join type.
Definition at line 595 of file qgssqlstatement.h.
◆ usingColumns()
Columns referenced by USING.
Definition at line 592 of file qgssqlstatement.h.
Member Data Documentation
◆ mOnExpr
|
protected |
Definition at line 607 of file qgssqlstatement.h.
◆ mTableDef
|
protected |
Definition at line 606 of file qgssqlstatement.h.
◆ mType
|
protected |
Definition at line 609 of file qgssqlstatement.h.
◆ mUsingColumns
Definition at line 608 of file qgssqlstatement.h.
The documentation for this class was generated from the following files:
- /tmp/buildd/qgis-2.18.21+99unstable/src/core/qgssqlstatement.h
- /tmp/buildd/qgis-2.18.21+99unstable/src/core/qgssqlstatement.cpp
