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:

2.0.0

Author:

hceylan

Constructor Summary

Constructors

Constructor and Description
CriteriaModify(MetamodelImpl metamodel)
CriteriaModify(MetamodelImpl metamodel, String qlString)

Method Summary

Methods

Modifier and Type	Method and Description
javax.persistence.criteria.Root<T>	from(Class<T> entityClass) Create and add a query root corresponding to the entity that is the target of the delete.
javax.persistence.criteria.Root<T>	from(javax.persistence.metamodel.EntityType<T> entity) Create and add a query root corresponding to the entity that is the target of the delete.
protected String	generateSqlRestriction() Returns the restriction for the query.
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.
boolean	isInternal() Returns if the query is internal.
<U> SubqueryImpl<U>	subquery(Class<U> type) Create a subquery of the query.
CriteriaModify<T>	where(javax.persistence.criteria.Expression<Boolean> restriction) Modify the query to restrict the target of the deletion according to the specified boolean expression.
CriteriaModify<T>	where(javax.persistence.criteria.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:

2.0.0

CriteriaModify

public CriteriaModify(MetamodelImpl metamodel,
              String qlString)

Parameters:

metamodel - the matamodel

qlString - the JPQL query

Since:

2.0.1

Method Detail

from

public javax.persistence.criteria.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:

2.0.0

from

public javax.persistence.criteria.Root<T> from(javax.persistence.metamodel.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:

2.0.0

generateSqlRestriction

protected String generateSqlRestriction()

Returns the restriction for the query.

Returns:

the restriction

Since:

2.0.0

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:

2.0.0

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:

2.0.0

getRoot

public RootImpl<T> getRoot()

Return the query root.

Returns:

the query root

isInternal

public boolean isInternal()

Returns if the query is internal.

Returns:

true if the query is internal, false otherwise

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:

2.0.0

where

public CriteriaModify<T> where(javax.persistence.criteria.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:

2.0.0

where

public CriteriaModify<T> where(javax.persistence.criteria.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:

2.0.0