CriteriaBuilder.Case (EclipseLink 2.7.16, API Reference)

All Superinterfaces:

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

Enclosing interface:

CriteriaBuilder
```
public static interface CriteriaBuilder.Case<R>
extends Expression<R>
```
Interface used to build general case expressions. Case conditions are evaluated in the order in which they are specified.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`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.
`CriteriaBuilder.Case<R>`	`when(Expression<java.lang.Boolean> condition, Expression<? extends R> result)`	Add a when/then clause to the case expression.
`CriteriaBuilder.Case<R>`	`when(Expression<java.lang.Boolean> 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
  - when
```
CriteriaBuilder.Case<R> when(Expression<java.lang.Boolean> condition,
                             R result)
```
    Add a when/then clause to the case expression.
    
    Parameters:
    
    condition - "when" condition
    
    result - "then" result value
    
    Returns:
    
    general case expression
  - when
```
CriteriaBuilder.Case<R> when(Expression<java.lang.Boolean> condition,
                             Expression<? extends R> result)
```
    Add a when/then clause to the case expression.
    
    Parameters:
    
    condition - "when" condition
    
    result - "then" result expression
    
    Returns:
    
    general 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