javax.jdo.query

Interface IfThenElseExpression<T>

Type Parameters:

T - Java type being returned here

All Superinterfaces:

ComparableExpression<T>, Expression<T>

public interface IfThenElseExpression<T>
extends ComparableExpression<T>

Expression representing an "IF ... ELSE ..." construct.

Method Summary

Modifier and Type	Method and Description
IfThenElseExpression<T>	elseEnd(Expression<T> valueExpr) Method to add the "ELSE ..." clause.
IfThenElseExpression<T>	elseEnd(T value) Method to add the "ELSE ..." clause.
IfThenElseExpression<T>	ifThen(BooleanExpression ifExpr, Expression<T> valueExpr) Method to add an "IF (...) ..." clause.
IfThenElseExpression<T>	ifThen(BooleanExpression ifExpr, T value) Method to add an "IF (...) ..." clause.

Methods inherited from interface javax.jdo.query.ComparableExpression

asc, desc, gt, gt, gteq, gteq, lt, lt, lteq, lteq, max, min

Methods inherited from interface javax.jdo.query.Expression

as, cast, count, countDistinct, eq, eq, instanceOf, ne, ne

Method Detail

ifThen

IfThenElseExpression<T> ifThen(BooleanExpression ifExpr,
                               T value)

Method to add an "IF (...) ..." clause. If called multiple times, will add extra "IF (...) ..." or "ELSE IF (...) ..."

Parameters:

ifExpr - The if expression

value - The return value

Returns:

This expression

ifThen

IfThenElseExpression<T> ifThen(BooleanExpression ifExpr,
                               Expression<T> valueExpr)

Method to add an "IF (...) ..." clause. If called multiple times, will add extra "IF (...) ..." or "ELSE IF (...) ..."

Parameters:

ifExpr - The if expression

valueExpr - The return value expression

Returns:

This expression

elseEnd

IfThenElseExpression<T> elseEnd(T value)

Method to add the "ELSE ..." clause. If called multiple times will replace the previous else clause

Parameters:

value - The return value

Returns:

This expression

elseEnd

IfThenElseExpression<T> elseEnd(Expression<T> valueExpr)

Method to add the "ELSE ..." clause. If called multiple times will replace the previous else clause

Parameters:

valueExpr - The return value expression

Returns:

This expression