casacore::TaQLNodeVisitor Class Reference

Class to visit the nodes in the raw TaQL parse tree. More...

#include <TaQLNodeVisitor.h>

Inheritance diagram for casacore::TaQLNodeVisitor:

List of all members.

Public Member Functions
virtual	~TaQLNodeVisitor ()
virtual TaQLNodeResult	visitConstNode (const TaQLConstNodeRep &node)=0
	Define the functions to visit each node type.
virtual TaQLNodeResult	visitRegexNode (const TaQLRegexNodeRep &node)=0
virtual TaQLNodeResult	visitUnaryNode (const TaQLUnaryNodeRep &node)=0
virtual TaQLNodeResult	visitBinaryNode (const TaQLBinaryNodeRep &node)=0
virtual TaQLNodeResult	visitMultiNode (const TaQLMultiNodeRep &node)=0
virtual TaQLNodeResult	visitFuncNode (const TaQLFuncNodeRep &node)=0
virtual TaQLNodeResult	visitRangeNode (const TaQLRangeNodeRep &node)=0
virtual TaQLNodeResult	visitIndexNode (const TaQLIndexNodeRep &node)=0
virtual TaQLNodeResult	visitKeyColNode (const TaQLKeyColNodeRep &node)=0
virtual TaQLNodeResult	visitTableNode (const TaQLTableNodeRep &node)=0
virtual TaQLNodeResult	visitColNode (const TaQLColNodeRep &node)=0
virtual TaQLNodeResult	visitColumnsNode (const TaQLColumnsNodeRep &node)=0
virtual TaQLNodeResult	visitJoinNode (const TaQLJoinNodeRep &node)=0
virtual TaQLNodeResult	visitGroupNode (const TaQLGroupNodeRep &node)=0
virtual TaQLNodeResult	visitSortKeyNode (const TaQLSortKeyNodeRep &node)=0
virtual TaQLNodeResult	visitSortNode (const TaQLSortNodeRep &node)=0
virtual TaQLNodeResult	visitLimitOffNode (const TaQLLimitOffNodeRep &node)=0
virtual TaQLNodeResult	visitGivingNode (const TaQLGivingNodeRep &node)=0
virtual TaQLNodeResult	visitUpdExprNode (const TaQLUpdExprNodeRep &node)=0
virtual TaQLNodeResult	visitSelectNode (const TaQLSelectNodeRep &node)=0
virtual TaQLNodeResult	visitUpdateNode (const TaQLUpdateNodeRep &node)=0
virtual TaQLNodeResult	visitInsertNode (const TaQLInsertNodeRep &node)=0
virtual TaQLNodeResult	visitDeleteNode (const TaQLDeleteNodeRep &node)=0
virtual TaQLNodeResult	visitCountNode (const TaQLCountNodeRep &node)=0
virtual TaQLNodeResult	visitCalcNode (const TaQLCalcNodeRep &node)=0
virtual TaQLNodeResult	visitCreTabNode (const TaQLCreTabNodeRep &node)=0
virtual TaQLNodeResult	visitColSpecNode (const TaQLColSpecNodeRep &node)=0
virtual TaQLNodeResult	visitRecFldNode (const TaQLRecFldNodeRep &node)=0
virtual TaQLNodeResult	visitUnitNode (const TaQLUnitNodeRep &node)=0
virtual TaQLNodeResult	visitAltTabNode (const TaQLAltTabNodeRep &node)=0
virtual TaQLNodeResult	visitAddColNode (const TaQLAddColNodeRep &node)=0
virtual TaQLNodeResult	visitSetKeyNode (const TaQLSetKeyNodeRep &node)=0
virtual TaQLNodeResult	visitRenDropNode (const TaQLRenDropNodeRep &node)=0
virtual TaQLNodeResult	visitAddRowNode (const TaQLAddRowNodeRep &node)=0
virtual TaQLNodeResult	visitConcTabNode (const TaQLConcTabNodeRep &node)=0
virtual TaQLNodeResult	visitShowNode (const TaQLShowNodeRep &node)=0
Protected Member Functions
TaQLNodeResult	visitNode (const TaQLNode &node)
	A convenience function to visit the given node using this visitor.

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Detailed Description

Class to visit the nodes in the raw TaQL parse tree.

Intended use:

Internal

Review Status

Test programs:

tTableGram

Prerequisite

• TaQLNode
• Note 199 describing TaQL

Synopsis

TaQLNodeVisitor is the abstract base class for classes that want to visit a TaQLNode tree, i.e. traverse the tree. Each visit results in a TaQLNodeResult object which acts as the basis for the actual result object.
A specialization of TaQLNodeVisitor (e.g. class TaQLNodeHandler needs to implement the various visitXXNode functions. A visit function will process a node which usually means visiting its children, etc.\.

Motivation

The visitor design pattern separates the tree from the way it is processed. In this way any handler can be created. For instance, a query optimizer could be a future other handler.

Definition at line 73 of file TaQLNodeVisitor.h.

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Constructor & Destructor Documentation

virtual casacore::TaQLNodeVisitor::~TaQLNodeVisitor

(

)

[virtual]

---

Member Function Documentation

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitAddColNode

(

const TaQLAddColNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitAddRowNode

(

const TaQLAddRowNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitAltTabNode

(

const TaQLAltTabNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitBinaryNode

(

const TaQLBinaryNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitCalcNode

(

const TaQLCalcNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitColNode

(

const TaQLColNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitColSpecNode

(

const TaQLColSpecNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitColumnsNode

(

const TaQLColumnsNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitConcTabNode

(

const TaQLConcTabNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitConstNode

(

const TaQLConstNodeRep &

node

)

[pure virtual]

Define the functions to visit each node type.

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitCountNode

(

const TaQLCountNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitCreTabNode

(

const TaQLCreTabNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitDeleteNode

(

const TaQLDeleteNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitFuncNode

(

const TaQLFuncNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitGivingNode

(

const TaQLGivingNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitGroupNode

(

const TaQLGroupNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitIndexNode

(

const TaQLIndexNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitInsertNode

(

const TaQLInsertNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitJoinNode

(

const TaQLJoinNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitKeyColNode

(

const TaQLKeyColNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitLimitOffNode

(

const TaQLLimitOffNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitMultiNode

(

const TaQLMultiNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

TaQLNodeResult casacore::TaQLNodeVisitor::visitNode

(

const TaQLNode &

node

)

[inline, protected]

A convenience function to visit the given node using this visitor.

Definition at line 120 of file TaQLNodeVisitor.h.

References casacore::TaQLNode::visit().

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitRangeNode

(

const TaQLRangeNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitRecFldNode

(

const TaQLRecFldNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitRegexNode

(

const TaQLRegexNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitRenDropNode

(

const TaQLRenDropNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitSelectNode

(

const TaQLSelectNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitSetKeyNode

(

const TaQLSetKeyNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitShowNode

(

const TaQLShowNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitSortKeyNode

(

const TaQLSortKeyNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitSortNode

(

const TaQLSortNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitTableNode

(

const TaQLTableNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitUnaryNode

(

const TaQLUnaryNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitUnitNode

(

const TaQLUnitNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitUpdateNode

(

const TaQLUpdateNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

virtual TaQLNodeResult casacore::TaQLNodeVisitor::visitUpdExprNode

(

const TaQLUpdExprNodeRep &

node

)

[pure virtual]

Implemented in casacore::TaQLNodeHandler.

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The documentation for this class was generated from the following file:

• casacore/tables/TaQL/TaQLNodeVisitor.h