com.metamatrix.query.sql.util
Class SymbolMap

java.lang.Object
  com.metamatrix.query.sql.util.SymbolMap

public class SymbolMap
extends java.lang.Object

Constructor Summary

SymbolMap()

Method Summary

boolean	addMapping(ElementSymbol symbol, Expression expression)
java.util.Map<ElementSymbol,Expression>	asMap()
java.util.Map<ElementSymbol,Expression>	asUpdatableMap()
SymbolMap	clone()
static SymbolMap	createSymbolMap(GroupSymbol virtualGroup, java.util.List<? extends SingleElementSymbol> projectCols)
static SymbolMap	createSymbolMap(GroupSymbol virtualGroup, java.util.List<? extends SingleElementSymbol> projectCols, java.util.List<? extends SingleElementSymbol> mappedCols)
static SymbolMap	createSymbolMap(java.util.List<ElementSymbol> virtualElements, java.util.List<? extends Expression> mappedCols)
static Expression	getExpression(Expression symbol)
java.util.List<ElementSymbol>	getKeys()
Expression	getMappedExpression(ElementSymbol symbol)
java.util.List<Expression>	getValues()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

SymbolMap

public SymbolMap()

Method Detail

clone

public SymbolMap clone()

Overrides:

clone in class java.lang.Object

addMapping

public boolean addMapping(ElementSymbol symbol,
                          Expression expression)

Returns:

true if the map did not already contained the given symbol

getExpression

public static final Expression getExpression(Expression symbol)

getMappedExpression

public Expression getMappedExpression(ElementSymbol symbol)

asUpdatableMap

public java.util.Map<ElementSymbol,Expression> asUpdatableMap()

asMap

public java.util.Map<ElementSymbol,Expression> asMap()

getKeys

public java.util.List<ElementSymbol> getKeys()

getValues

public java.util.List<Expression> getValues()

createSymbolMap

public static final SymbolMap createSymbolMap(GroupSymbol virtualGroup,
                                              java.util.List<? extends SingleElementSymbol> projectCols)

createSymbolMap

public static final SymbolMap createSymbolMap(GroupSymbol virtualGroup,
                                              java.util.List<? extends SingleElementSymbol> projectCols,
                                              java.util.List<? extends SingleElementSymbol> mappedCols)

createSymbolMap

public static final SymbolMap createSymbolMap(java.util.List<ElementSymbol> virtualElements,
                                              java.util.List<? extends Expression> mappedCols)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

See Also:

Object.toString()