Module org.eclipse.persistence.jpa

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

Class CriteriaBuilderImpl.SimpleCaseImpl<C,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.SimpleCaseImpl<C,R>

Type Parameters:

C -

R -

All Implemented Interfaces:

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

Enclosing class:

CriteriaBuilderImpl

public class CriteriaBuilderImpl.SimpleCaseImpl<C,R>
extends FunctionExpressionImpl<R>
implements CriteriaBuilder.SimpleCase<C,R>

Implementation of SimpleCase interface from CriteriaBuilder

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	SimpleCaseImpl(Metamodel metamodel, Class<R> resultClass, FunctionExpression expressionNode, List<Expression<?>> compoundExpressions, Expression<C> expression)
protected	SimpleCaseImpl(Metamodel metamodel, Class<R> resultClass, FunctionExpression expressionNode, List<Expression<?>> compoundExpressions, String operator, Expression<C> expression)

Method Summary

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

SimpleCaseImpl

protected SimpleCaseImpl(Metamodel metamodel,
 Class<R> resultClass,
 FunctionExpression expressionNode,
 List<Expression<?>> compoundExpressions,
 Expression<C> expression)

SimpleCaseImpl

protected SimpleCaseImpl(Metamodel metamodel,
 Class<R> resultClass,
 FunctionExpression expressionNode,
 List<Expression<?>> compoundExpressions,
 String operator,
 Expression<C> expression)

Method Details

getExpression

public Expression<C> getExpression()

Returns the expression to be tested against the conditions.

Specified by:

getExpression in interface CriteriaBuilder.SimpleCase<C,R>

Returns:

expression

when

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

Add a when/then clause to the case expression.

Specified by:

when in interface CriteriaBuilder.SimpleCase<C,R>

Parameters:

condition - "when" condition

result - "then" result value

Returns:

simple case expression

when

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

Add a when/then clause to the case expression.

Specified by:

when in interface CriteriaBuilder.SimpleCase<C,R>

Parameters:

condition - "when" condition

result - "then" result expression

Returns:

simple case expression

when

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

Add a when/then clause to the case expression.

Specified by:

when in interface CriteriaBuilder.SimpleCase<C,R>

Parameters:

condition - "when" condition

result - "then" result value

Returns:

simple case expression

when

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

Add a when/then clause to the case expression.

Specified by:

when in interface CriteriaBuilder.SimpleCase<C,R>

Parameters:

condition - "when" condition

result - "then" result expression

Returns:

simple case expression

otherwise

public Expression<R> otherwise(R result)

Add an "else" clause to the case expression.

Specified by:

otherwise in interface CriteriaBuilder.SimpleCase<C,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.SimpleCase<C,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>