casacore::TaQLNodeRep Class Reference

Representation of a node in the raw TaQL parse tree. More...

#include <TaQLNodeRep.h>

Inheritance diagram for casacore::TaQLNodeRep:

Public Member Functions
	TaQLNodeRep (int nodeType)
	Constructor for derived classes specifying the type. More...
virtual	~TaQLNodeRep ()
char	nodeType () const
	Get the node type of the derived class. More...
const TaQLStyle &	style () const
	Get the TaQL style. More...
virtual TaQLNodeResult	visit (TaQLNodeVisitor &) const =0
	Visit a node for tree traversal. More...
virtual void	show (std::ostream &os) const =0
	Print the object in an ostream. More...
virtual void	save (AipsIO &aio) const =0
	Save the object. More...
String	addEscape (const String &str) const
	Add escape characters to a table name where needed. More...

Static Public Member Functions
static String	checkDataType (const String &)
	Check the data type string and return its standard form. More...

Private Member Functions
	TaQLNodeRep (const TaQLNodeRep &)
	Letter objects cannot be copied. More...
TaQLNodeRep &	operator= (const TaQLNodeRep &)

Private Attributes
char	itsNodeType
TaQLStyle	itsStyle

Detailed Description

Representation of a node in the raw TaQL parse tree.

Intended use:

Internal

Review Status

Test programs:

tTaQLNode

Prerequisite

• TaQLNode
• Note 199 describing TaQL

Synopsis

TaQLNode/TaQLNodeRep form an envelope/letter pair. TaQLNodeRep is the abstract base class for all classes used in the raw TaQL parse tree (e.g. TaQLConstNodeRep).

Motivation

The envelope/letter idiom (aka counted referencing) is a nice means to pass an object around by value, so to ensure that an object is deleted in case of an exception. Furthermore it makes copying an object very cheap and memory management straightforward.

Definition at line 76 of file TaQLNodeRep.h.

Constructor & Destructor Documentation

casacore::TaQLNodeRep::TaQLNodeRep ( int  nodeType )

explicit

Constructor for derived classes specifying the type.

virtual casacore::TaQLNodeRep::~TaQLNodeRep ( )

virtual

casacore::TaQLNodeRep::TaQLNodeRep ( const TaQLNodeRep &  )

private

Letter objects cannot be copied.

Member Function Documentation

String casacore::TaQLNodeRep::addEscape

(

const String &

str

)

const

Add escape characters to a table name where needed.

static String casacore::TaQLNodeRep::checkDataType ( const String &  )

static

Check the data type string and return its standard form.

char casacore::TaQLNodeRep::nodeType ( ) const

inline

Get the node type of the derived class.

Definition at line 128 of file TaQLNodeRep.h.

References itsNodeType.

TaQLNodeRep& casacore::TaQLNodeRep::operator= ( const TaQLNodeRep &  )

private

virtual void casacore::TaQLNodeRep::save ( AipsIO &  aio ) const

pure virtual

Save the object.

Implemented in casacore::TaQLShowNodeRep, casacore::TaQLConcTabNodeRep, casacore::TaQLAddRowNodeRep, casacore::TaQLSetKeyNodeRep, casacore::TaQLRenDropNodeRep, casacore::TaQLAddColNodeRep, casacore::TaQLAltTabNodeRep, casacore::TaQLUnitNodeRep, casacore::TaQLRecFldNodeRep, casacore::TaQLColSpecNodeRep, casacore::TaQLCreTabNodeRep, casacore::TaQLCalcNodeRep, casacore::TaQLDeleteNodeRep, casacore::TaQLInsertNodeRep, casacore::TaQLUpdateNodeRep, casacore::TaQLCountNodeRep, casacore::TaQLSelectNodeRep, casacore::TaQLUpdExprNodeRep, casacore::TaQLGivingNodeRep, casacore::TaQLLimitOffNodeRep, casacore::TaQLSortNodeRep, casacore::TaQLSortKeyNodeRep, casacore::TaQLGroupNodeRep, casacore::TaQLColumnsNodeRep, casacore::TaQLColNodeRep, casacore::TaQLTableNodeRep, casacore::TaQLKeyColNodeRep, casacore::TaQLJoinNodeRep, casacore::TaQLIndexNodeRep, casacore::TaQLRangeNodeRep, casacore::TaQLFuncNodeRep, casacore::TaQLMultiNodeRep, casacore::TaQLBinaryNodeRep, casacore::TaQLUnaryNodeRep, casacore::TaQLRegexNodeRep, and casacore::TaQLConstNodeRep.

virtual void casacore::TaQLNodeRep::show ( std::ostream &  os ) const

pure virtual

Print the object in an ostream.

Implemented in casacore::TaQLShowNodeRep, casacore::TaQLAddRowNodeRep, casacore::TaQLSetKeyNodeRep, casacore::TaQLRenDropNodeRep, casacore::TaQLAddColNodeRep, casacore::TaQLUnitNodeRep, casacore::TaQLRecFldNodeRep, casacore::TaQLColSpecNodeRep, casacore::TaQLCalcNodeRep, casacore::TaQLDeleteNodeRep, casacore::TaQLInsertNodeRep, casacore::TaQLUpdateNodeRep, casacore::TaQLQueryNodeRep, casacore::TaQLUpdExprNodeRep, casacore::TaQLGivingNodeRep, casacore::TaQLLimitOffNodeRep, casacore::TaQLSortNodeRep, casacore::TaQLSortKeyNodeRep, casacore::TaQLGroupNodeRep, casacore::TaQLColumnsNodeRep, casacore::TaQLColNodeRep, casacore::TaQLTableNodeRep, casacore::TaQLKeyColNodeRep, casacore::TaQLJoinNodeRep, casacore::TaQLIndexNodeRep, casacore::TaQLRangeNodeRep, casacore::TaQLFuncNodeRep, casacore::TaQLMultiNodeRep, casacore::TaQLBinaryNodeRep, casacore::TaQLUnaryNodeRep, casacore::TaQLRegexNodeRep, and casacore::TaQLConstNodeRep.

const TaQLStyle& casacore::TaQLNodeRep::style ( ) const

inline

Get the TaQL style.

Definition at line 132 of file TaQLNodeRep.h.

References itsStyle.

virtual TaQLNodeResult casacore::TaQLNodeRep::visit ( TaQLNodeVisitor &  ) const

pure virtual

Visit a node for tree traversal.

Implemented in casacore::TaQLShowNodeRep, casacore::TaQLConcTabNodeRep, casacore::TaQLAddRowNodeRep, casacore::TaQLSetKeyNodeRep, casacore::TaQLRenDropNodeRep, casacore::TaQLAddColNodeRep, casacore::TaQLAltTabNodeRep, casacore::TaQLUnitNodeRep, casacore::TaQLRecFldNodeRep, casacore::TaQLColSpecNodeRep, casacore::TaQLCreTabNodeRep, casacore::TaQLCalcNodeRep, casacore::TaQLDeleteNodeRep, casacore::TaQLInsertNodeRep, casacore::TaQLUpdateNodeRep, casacore::TaQLCountNodeRep, casacore::TaQLSelectNodeRep, casacore::TaQLUpdExprNodeRep, casacore::TaQLGivingNodeRep, casacore::TaQLLimitOffNodeRep, casacore::TaQLSortNodeRep, casacore::TaQLSortKeyNodeRep, casacore::TaQLGroupNodeRep, casacore::TaQLColumnsNodeRep, casacore::TaQLColNodeRep, casacore::TaQLTableNodeRep, casacore::TaQLKeyColNodeRep, casacore::TaQLJoinNodeRep, casacore::TaQLIndexNodeRep, casacore::TaQLRangeNodeRep, casacore::TaQLFuncNodeRep, casacore::TaQLMultiNodeRep, casacore::TaQLBinaryNodeRep, casacore::TaQLUnaryNodeRep, casacore::TaQLRegexNodeRep, and casacore::TaQLConstNodeRep.

Member Data Documentation

char casacore::TaQLNodeRep::itsNodeType

private

Definition at line 157 of file TaQLNodeRep.h.

Referenced by nodeType().

TaQLStyle casacore::TaQLNodeRep::itsStyle

private

Definition at line 158 of file TaQLNodeRep.h.

Referenced by style().

---

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

• casa/casacore/tables/TaQL/TaQLNodeRep.h