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

Class WhenScalar

java.lang.Object

org.apache.openjpa.jdbc.kernel.exps.WhenScalar

All Implemented Interfaces:

Serializable, Expression

public class WhenScalar
extends Object

Value produced by a when_clause of a case expression.

Author:

Catalina Wei

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
WhenScalar(Val val1, Val val2)	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)
int	getId()
Class	getType()
Val	getVal1()
Val	getVal2()
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

WhenScalar

public WhenScalar(Val val1,
                  Val val2)

Constructor.

Method Detail

getVal1

public Val getVal1()

getVal2

public Val getVal2()

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()