Module org.eclipse.persistence.jpa

Package org.eclipse.persistence.internal.jpa.querydef

Class CriteriaBuilderImpl.CaseImpl<R>

java.lang.Object

org.eclipse.persistence.internal.jpa.querydef.SelectionImpl<R>

org.eclipse.persistence.internal.jpa.querydef.ExpressionImpl<R>

org.eclipse.persistence.internal.jpa.querydef.FunctionExpressionImpl<R>

org.eclipse.persistence.internal.jpa.querydef.CriteriaBuilderImpl.CaseImpl<R>

Type Parameters:

R -

All Implemented Interfaces:

CriteriaBuilder.Case<R>, Expression<R>, Selection<R>, TupleElement<R>, Serializable, InternalExpression, InternalSelection

Enclosing class:

CriteriaBuilderImpl

public class CriteriaBuilderImpl.CaseImpl<R>
extends FunctionExpressionImpl<R>
implements CriteriaBuilder.Case<R>

Implementation of Case interface from Criteria Builder

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.eclipse.persistence.internal.jpa.querydef.FunctionExpressionImpl

expressions, operator

Fields inherited from class org.eclipse.persistence.internal.jpa.querydef.ExpressionImpl

isLiteral, literal, metamodel

Fields inherited from class org.eclipse.persistence.internal.jpa.querydef.SelectionImpl

alias, currentNode, javaType

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	CaseImpl(Metamodel metamodel, Class<R> resultClass, Expression expressionNode, List<Expression<?>> compoundExpressions)
protected	CaseImpl(Metamodel metamodel, Class<R> resultClass, Expression expressionNode, List<Expression<?>> compoundExpressions, String operator)

Method Summary

Modifier and Type	Method	Description
void	findRootAndParameters(CommonAbstractCriteriaImpl query)
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<Boolean> condition, Expression<? extends R> result)	Add a when/then clause to the case expression.
CriteriaBuilder.Case<R>	when(Expression<Boolean> condition, R result)	Add a when/then clause to the case expression.

Methods inherited from class org.eclipse.persistence.internal.jpa.querydef.FunctionExpressionImpl

getChildExpressions, getOperation, isCompoundExpression, isExpression

Methods inherited from class org.eclipse.persistence.internal.jpa.querydef.ExpressionImpl

as, buildExpressionForAs, in, in, in, in, isJunction, isLiteral, isNotNull, isNull, isParameter, isPredicate, isSubquery

Methods inherited from class org.eclipse.persistence.internal.jpa.querydef.SelectionImpl

alias, getAlias, getCompoundSelectionItems, getCurrentNode, getJavaType, isCompoundSelection, isConstructor, isFrom, isRoot, setJavaType

Methods inherited from class java.lang.Object

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

Methods inherited from interface jakarta.persistence.criteria.Expression

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

Methods inherited from interface jakarta.persistence.criteria.Selection

alias, getCompoundSelectionItems, isCompoundSelection

Methods inherited from interface jakarta.persistence.TupleElement

getAlias, getJavaType

Constructor Details

CaseImpl

protected CaseImpl(Metamodel metamodel,
 Class<R> resultClass,
 Expression expressionNode,
 List<Expression<?>> compoundExpressions)

CaseImpl

protected CaseImpl(Metamodel metamodel,
 Class<R> resultClass,
 Expression expressionNode,
 List<Expression<?>> compoundExpressions,
 String operator)

Method Details

when

public CriteriaBuilder.Case<R> when(Expression<Boolean> condition,
 R result)

Add a when/then clause to the case expression.

Specified by:

when in interface CriteriaBuilder.Case<R>

Parameters:

condition - "when" condition

result - "then" result value

Returns:

general case expression

when

public CriteriaBuilder.Case<R> when(Expression<Boolean> condition,
 Expression<? extends R> result)

Add a when/then clause to the case expression.

Specified by:

when in interface CriteriaBuilder.Case<R>

Parameters:

condition - "when" condition

result - "then" result expression

Returns:

general case expression

otherwise

public Expression<R> otherwise(R result)

Add an "else" clause to the case expression.

Specified by:

otherwise in interface CriteriaBuilder.Case<R>

Parameters:

result - "else" result

Returns:

expression

otherwise

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

Add an "else" clause to the case expression.

Specified by:

otherwise in interface CriteriaBuilder.Case<R>

Parameters:

result - "else" result expression

Returns:

expression

findRootAndParameters

public void findRootAndParameters(CommonAbstractCriteriaImpl query)

Specified by:

findRootAndParameters in interface InternalSelection

Overrides:

findRootAndParameters in class FunctionExpressionImpl<R>