Package org.apache.openjpa.jdbc.kernel.exps

Class WhenCondition

java.lang.Object

org.apache.openjpa.jdbc.kernel.exps.WhenCondition

All Implemented Interfaces:

Serializable, Expression

public class WhenCondition
extends Object

Value produced by a when_clause of a case expression.

Author:

Catalina Wei

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
WhenCondition(org.apache.openjpa.jdbc.kernel.exps.Exp exp, Val val)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	acceptVisit(ExpressionVisitor visitor)	Accept a visit from a tree visitor.
void	appendTo(Select sel, ExpContext ctx, ExpState state, SQLBuffer buf)
org.apache.openjpa.jdbc.kernel.exps.Exp	getExp()
int	getId()
Class	getType()
Val	getVal()
ExpState	initialize(Select sel, ExpContext ctx, Map contains)
void	selectColumns(Select sel, ExpContext ctx, ExpState state, boolean pks)

Methods inherited from class java.lang.Object

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

Constructor Detail

WhenCondition

public WhenCondition(org.apache.openjpa.jdbc.kernel.exps.Exp exp,
                     Val val)

Constructor.

Method Detail

getExp

public org.apache.openjpa.jdbc.kernel.exps.Exp getExp()

getVal

public Val getVal()

getType

public Class getType()

initialize

public ExpState initialize(Select sel,
                           ExpContext ctx,
                           Map contains)

appendTo

public void appendTo(Select sel,
                     ExpContext ctx,
                     ExpState state,
                     SQLBuffer buf)

selectColumns

public void selectColumns(Select sel,
                          ExpContext ctx,
                          ExpState state,
                          boolean pks)

acceptVisit

public void acceptVisit(ExpressionVisitor visitor)

Description copied from interface: Expression

Accept a visit from a tree visitor.

Specified by:

acceptVisit in interface Expression

getId

public int getId()