com.metamatrix.query.sql.visitor
Class StaticSymbolMappingVisitor

java.lang.Object
  com.metamatrix.query.sql.LanguageVisitor
      com.metamatrix.query.sql.visitor.ExpressionMappingVisitor
          com.metamatrix.query.sql.visitor.AbstractSymbolMappingVisitor
              com.metamatrix.query.sql.visitor.StaticSymbolMappingVisitor

public class StaticSymbolMappingVisitor
extends AbstractSymbolMappingVisitor

This class is used to update LanguageObjects by replacing the virtual elements/ groups present in them with their physical counterparts. It is currently used only to visit Insert/Delete/Update objects and parts of those objects.

Constructor Summary

StaticSymbolMappingVisitor(java.util.Map symbolMap)
This constructor initialises this object by setting the symbolMap and passing in the command object that is being visited.

Method Summary

protected Symbol	getMappedSymbol(Symbol symbol) Get the mapped symbol from the specified symbol.
static void	mapSymbols(LanguageObject obj, java.util.Map symbolMap)

Methods inherited from class com.metamatrix.query.sql.visitor.AbstractSymbolMappingVisitor

getUnmappedSymbols, replaceExpression, visit, visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class com.metamatrix.query.sql.visitor.ExpressionMappingVisitor

createAliases, getVariableValues, mapExpressions, setVariableValues, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class com.metamatrix.query.sql.LanguageVisitor

setAbort, shouldAbort, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StaticSymbolMappingVisitor

public StaticSymbolMappingVisitor(java.util.Map symbolMap)

This constructor initialises this object by setting the symbolMap and passing in the command object that is being visited.

Parameters:

symbolMap - A map of virtual elements/groups to their physical counterparts

Method Detail

getMappedSymbol

protected Symbol getMappedSymbol(Symbol symbol)

Description copied from class: AbstractSymbolMappingVisitor

Get the mapped symbol from the specified symbol. Subclasses should implement this method to look up the target symbol from the specified symbol.

Specified by:

getMappedSymbol in class AbstractSymbolMappingVisitor

Parameters:

symbol - Source symbol

Returns:

Target symbol

mapSymbols

public static void mapSymbols(LanguageObject obj,
                              java.util.Map symbolMap)