org.batoo.jpa.core.impl.criteria

Class CriteriaModify<T>

java.lang.Object

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

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

Type Parameters:

T - the type of the modify criteria.

All Implemented Interfaces:

BaseQuery<T>

Direct Known Subclasses:

CriteriaDeleteImpl, CriteriaUpdateImpl

public abstract class CriteriaModify<T>
extends BaseQueryImpl<T>

Base class for for the update and delete criterias.

Since:

$version

Author:

hceylan

Constructor Summary

Constructors

Constructor and Description
CriteriaModify(MetamodelImpl metamodel)

Method Summary

Methods

Modifier and Type	Method and Description
Root<T>	from(Class<T> entityClass) Create and add a query root corresponding to the entity that is the target of the delete.
Root<T>	from(EntityType<T> entity) Create and add a query root corresponding to the entity that is the target of the delete.
String	getJpql() Returns the JPQL for the query.
PredicateImpl	getRestriction() Return the predicate that corresponds to the where clause restriction(s), or null if no restrictions have been specified.
RootImpl<T>	getRoot() Return the query root.
<U> SubqueryImpl<U>	subquery(Class<U> type) Create a subquery of the query.
CriteriaModify<T>	where(Expression<Boolean> restriction) Modify the query to restrict the target of the deletion according to the specified boolean expression.
CriteriaModify<T>	where(Predicate... restrictions) Modify the query to restrict the target of the deletion according to the conjunction of the specified restriction predicates.

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

generateTableAlias, getAlias, getAlias, getFieldAlias, getJdbcAdaptor, getMetamodel, getParameter, getParameters, getSql, getSqlParameters, isQuery, setNextSqlParam

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.batoo.jpa.core.impl.criteria.BaseQuery

generateJpql, generateSql

Constructor Detail

CriteriaModify

public CriteriaModify(MetamodelImpl metamodel)

Parameters:

metamodel - the metamodel

Since:

$version

Method Detail

from

public Root<T> from(Class<T> entityClass)

Create and add a query root corresponding to the entity that is the target of the delete. A CriteriaDelete object has a single root, the object that is being deleted.

Parameters:

entityClass - the entity class

Returns:

query root corresponding to the given entity

Since:

$version

from

public Root<T> from(EntityType<T> entity)

Create and add a query root corresponding to the entity that is the target of the delete. A CriteriaDelete object has a single root, the object that is being deleted.

Parameters:

entity - metamodel entity representing the entity of type X

Returns:

query root corresponding to the given entity

Since:

$version

getJpql

public String getJpql()

Returns the JPQL for the query.

Specified by:

getJpql in interface BaseQuery<T>

Overrides:

getJpql in class BaseQueryImpl<T>

Returns:

the the JPQL

Since:

$version

getRestriction

public PredicateImpl getRestriction()

Return the predicate that corresponds to the where clause restriction(s), or null if no restrictions have been specified.

Returns:

where clause predicate

Since:

$version

getRoot

public RootImpl<T> getRoot()

Return the query root.

Returns:

the query root

subquery

public <U> SubqueryImpl<U> subquery(Class<U> type)

Create a subquery of the query.

Type Parameters:

U - type of the sub query

Parameters:

type - the subquery result type

Returns:

subquery

Since:

$version

where

public CriteriaModify<T> where(Expression<Boolean> restriction)

Modify the query to restrict the target of the deletion according to the specified boolean expression. Replaces the previously added restriction(s), if any.

Parameters:

restriction - a simple or compound boolean expression

Returns:

the modified query

Since:

$version

where

public CriteriaModify<T> where(Predicate... restrictions)

Modify the query to restrict the target of the deletion according to the conjunction of the specified restriction predicates. Replaces the previously added restriction(s), if any. If no restrictions are specified, any previously added restrictions are simply removed.

Parameters:

restrictions - zero or more restriction predicates

Returns:

the modified query

Since:

$version