org.batoo.jpa.core.impl.criteria.expression

Class SimpleCaseImpl<C,R>

java.lang.Object

org.batoo.jpa.core.impl.criteria.TupleElementImpl<X>

org.batoo.jpa.core.impl.criteria.AbstractSelection<T>

org.batoo.jpa.core.impl.criteria.expression.AbstractExpression<R>

org.batoo.jpa.core.impl.criteria.expression.SimpleCaseImpl<C,R>

Type Parameters:

C - the type of the case expression

R - the type of the result expression

All Implemented Interfaces:

javax.persistence.criteria.CriteriaBuilder.SimpleCase<C,R>, javax.persistence.criteria.Expression<R>, javax.persistence.criteria.Selection<R>, javax.persistence.TupleElement<R>

public class SimpleCaseImpl<C,R>
extends AbstractExpression<R>
implements javax.persistence.criteria.CriteriaBuilder.SimpleCase<C,R>

Implementation of CriteriaBuilder.SimpleCase.

Since:

2.0.0

Author:

hceylan

Constructor Summary

Constructors

Constructor and Description
SimpleCaseImpl(javax.persistence.criteria.Expression<? extends C> inner)

Method Summary

Methods

Modifier and Type	Method and Description
String	generateJpqlRestriction(BaseQueryImpl<?> query) Returns the JPQL where fragment.
String	generateJpqlSelect(AbstractCriteriaQueryImpl<?> query, boolean selected) Returns the JPQL select fragment.
String	generateSqlSelect(AbstractCriteriaQueryImpl<?> query, boolean selected) Returns the SQL select fragment.
javax.persistence.criteria.Expression<C>	getExpression()
String[]	getSqlRestrictionFragments(BaseQueryImpl<?> query) Returns the SQL restriction fragments.
R	handle(QueryImpl<?> query, SessionImpl session, ResultSet row) Handles the row.
javax.persistence.criteria.Expression<R>	otherwise(javax.persistence.criteria.Expression<? extends R> result)
javax.persistence.criteria.Expression<R>	otherwise(R result)
SimpleCaseImpl<C,R>	when(AbstractExpression<C> condition, AbstractExpression<R> result) Add a when/then clause to the case expression.
javax.persistence.criteria.CriteriaBuilder.SimpleCase<C,R>	when(C condition, javax.persistence.criteria.Expression<? extends R> result)
javax.persistence.criteria.CriteriaBuilder.SimpleCase<C,R>	when(C condition, R result)

Methods inherited from class org.batoo.jpa.core.impl.criteria.expression.AbstractExpression

as, getConverter, in, in, in, in, isNotNull, isNull, notIn, notIn, notIn, notIn, setConverter

Methods inherited from class org.batoo.jpa.core.impl.criteria.AbstractSelection

alias, getAlias, getCompoundSelectionItems, isCompoundSelection, isEntityList

Methods inherited from class org.batoo.jpa.core.impl.criteria.TupleElementImpl

getJavaType

Methods inherited from class java.lang.Object

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

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

Constructor Detail

SimpleCaseImpl

public SimpleCaseImpl(javax.persistence.criteria.Expression<? extends C> inner)

Parameters:

inner - the inner expression

Since:

2.0.0

Method Detail

generateJpqlRestriction

public String generateJpqlRestriction(BaseQueryImpl<?> query)

Returns the JPQL where fragment.

Specified by:

generateJpqlRestriction in class AbstractExpression<R>

Parameters:

query - the query

Returns:

the JPQL where fragment

generateJpqlSelect

public String generateJpqlSelect(AbstractCriteriaQueryImpl<?> query,
                        boolean selected)

Returns the JPQL select fragment.

Specified by:

generateJpqlSelect in class AbstractSelection<R>

Parameters:

query - the criteria query

selected - if the selection is selected

Returns:

the JPQL select fragment

generateSqlSelect

public String generateSqlSelect(AbstractCriteriaQueryImpl<?> query,
                       boolean selected)

Returns the SQL select fragment.

Specified by:

generateSqlSelect in class AbstractSelection<R>

Parameters:

query - the query

selected - if the selection is selected

Returns:

the SQL select fragment

getExpression

public javax.persistence.criteria.Expression<C> getExpression()

Specified by:

getExpression in interface javax.persistence.criteria.CriteriaBuilder.SimpleCase<C,R>

getSqlRestrictionFragments

public String[] getSqlRestrictionFragments(BaseQueryImpl<?> query)

Returns the SQL restriction fragments.

Specified by:

getSqlRestrictionFragments in class AbstractSelection<R>

Parameters:

query - the query

Returns:

the SQL restriction fragments

handle

public R handle(QueryImpl<?> query,
       SessionImpl session,
       ResultSet row)
         throws SQLException

Handles the row.

Specified by:

handle in class AbstractSelection<R>

Parameters:

query - the query

session - the session

row - the row

Returns:

the managed instance

Throws:

SQLException - thrown in case of an underlying SQL Error

otherwise

public javax.persistence.criteria.Expression<R> otherwise(javax.persistence.criteria.Expression<? extends R> result)

Specified by:

otherwise in interface javax.persistence.criteria.CriteriaBuilder.SimpleCase<C,R>

otherwise

public javax.persistence.criteria.Expression<R> otherwise(R result)

Specified by:

otherwise in interface javax.persistence.criteria.CriteriaBuilder.SimpleCase<C,R>

when

public SimpleCaseImpl<C,R> when(AbstractExpression<C> condition,
                       AbstractExpression<R> result)

Add a when/then clause to the case expression.

Parameters:

condition - "when" condition

result - "then" result expression

Returns:

simple case expression

Since:

2.0.0

when

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

Specified by:

when in interface javax.persistence.criteria.CriteriaBuilder.SimpleCase<C,R>

when

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

Specified by:

when in interface javax.persistence.criteria.CriteriaBuilder.SimpleCase<C,R>