javax.persistence.criteria
Interface QueryBuilder.SimpleCase<C,R>

All Superinterfaces:

Expression<R>, Selection<R>, TupleElement<R>

Enclosing interface:

QueryBuilder

public static interface QueryBuilder.SimpleCase<C,R>
extends Expression<R>

Interface used to build simple case expressions. Case conditions are evaluated in the order in which they are specified.

Method Summary

Expression<C>	getExpression() Returns the expression to be tested against the conditions.
Expression<R>	otherwise(Expression<? extends R> result) Add an "else" clause to the case expression.
Expression<R>	otherwise(R result) Add an "else" clause to the case expression.
QueryBuilder.SimpleCase<C,R>	when(C condition, Expression<? extends R> result) Add a when/then clause to the case expression.
QueryBuilder.SimpleCase<C,R>	when(C condition, R result) Add a when/then clause to the case expression.

Methods inherited from interface javax.persistence.criteria.Expression

as, in, in, in, in, isNotNull, isNull

Methods inherited from interface javax.persistence.criteria.Selection

alias, getCompoundSelectionItems, isCompoundSelection

Methods inherited from interface javax.persistence.TupleElement

getAlias, getJavaType

Method Detail

getExpression

Expression<C> getExpression()

Returns the expression to be tested against the conditions.

Returns:

expression

when

QueryBuilder.SimpleCase<C,R> when(C condition,
                                  R result)

Add a when/then clause to the case expression.

Parameters:

condition - "when" condition

result - "then" result value

Returns:

simple case expression

when

QueryBuilder.SimpleCase<C,R> when(C condition,
                                  Expression<? extends R> result)

Add a when/then clause to the case expression.

Parameters:

condition - "when" condition

result - "then" result expression

Returns:

simple case expression

otherwise

Expression<R> otherwise(R result)

Add an "else" clause to the case expression.

Parameters:

result - "else" result

Returns:

expression

otherwise

Expression<R> otherwise(Expression<? extends R> result)

Add an "else" clause to the case expression.

Parameters:

result - "else" result expression

Returns:

expression