org.jdal.dao.jpa

Class JpaCriteriaBuilderSupport<T,K>

java.lang.Object

org.jdal.dao.jpa.JpaCriteriaBuilderSupport<T,K>

Type Parameters:

T - CriteriaQuery Type

K - Entity Type

All Implemented Interfaces:

JpaCriteriaBuilder<T>

public abstract class JpaCriteriaBuilderSupport<T,K>
extends Object
implements JpaCriteriaBuilder<T>

Author:

Jose Luis Martin - (jlm@joseluismartin.info)

Field Summary

Fields

Modifier and Type	Field and Description
protected javax.persistence.criteria.CriteriaBuilder	cb
protected Class<K>	entityClass
protected Filter	filter
protected javax.persistence.criteria.Root<K>	root

Constructor Summary

Constructors

Constructor and Description
JpaCriteriaBuilderSupport(Class<K> entityClass)

Method Summary

Methods

Modifier and Type	Method and Description
protected <Y> void	addAndWhere(javax.persistence.criteria.CriteriaQuery<Y> criteria, javax.persistence.criteria.CriteriaBuilder cb, List<javax.persistence.criteria.Predicate> predicates) Add where expression to criteria with AND.
protected void	addPredicateIfNotNull(List<javax.persistence.criteria.Predicate> predicates, javax.persistence.criteria.Predicate predicate)
javax.persistence.criteria.CriteriaQuery<T>	build(javax.persistence.criteria.CriteriaQuery<T> criteria, javax.persistence.criteria.CriteriaBuilder cb, Filter filter) Add Restrictions to Critera from filter
protected abstract void	doBuild(javax.persistence.criteria.CriteriaQuery<T> criteria, javax.persistence.criteria.CriteriaBuilder cb, Filter filter) Build criteria
protected javax.persistence.criteria.Predicate	equal(String propertyName, Object value) Add a '=' Restriction on property
protected <Y> javax.persistence.criteria.Path<Y>	getPath(javax.persistence.criteria.Path<?> path, String name) return property path
protected <Y extends Comparable<? super Y>> javax.persistence.criteria.Predicate	greatThanOrEqualTo(String propertyName, Y value) Add a '>=' Restriction on property
protected <Y extends Comparable<? super Y>> javax.persistence.criteria.Predicate	lessThanOrEqualTo(String propertyName, Y value) Add a '<=' Restriction on property
protected javax.persistence.criteria.Predicate	like(String propertyName, String value) Add a like Restriction adding wrapping value on '%' and replacing '*' for '%'

Methods inherited from class java.lang.Object

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

Field Detail

filter

protected Filter filter

root

protected javax.persistence.criteria.Root<K> root

cb

protected javax.persistence.criteria.CriteriaBuilder cb

entityClass

protected Class<K> entityClass

Constructor Detail

JpaCriteriaBuilderSupport

public JpaCriteriaBuilderSupport(Class<K> entityClass)

Method Detail

build

public javax.persistence.criteria.CriteriaQuery<T> build(javax.persistence.criteria.CriteriaQuery<T> criteria,
                                                javax.persistence.criteria.CriteriaBuilder cb,
                                                Filter filter)

Add Restrictions to Critera from filter

Specified by:

build in interface JpaCriteriaBuilder<T>

Parameters:

criteria - criteria to add restrictions

cb - CriteriaBuilder

filter - Filter data

Returns:

criteria.

doBuild

protected abstract void doBuild(javax.persistence.criteria.CriteriaQuery<T> criteria,
           javax.persistence.criteria.CriteriaBuilder cb,
           Filter filter)

Build criteria

Parameters:

criteria -

cb -

filter -

equal

protected javax.persistence.criteria.Predicate equal(String propertyName,
                                         Object value)

Add a '=' Restriction on property

Parameters:

propertyName - property path

value - restriction value

lessThanOrEqualTo

protected <Y extends Comparable<? super Y>> javax.persistence.criteria.Predicate lessThanOrEqualTo(String propertyName,
                                                                                       Y value)

Add a '<=' Restriction on property

Parameters:

propertyName - property path

value - restriction value

greatThanOrEqualTo

protected <Y extends Comparable<? super Y>> javax.persistence.criteria.Predicate greatThanOrEqualTo(String propertyName,
                                                                                        Y value)

Add a '>=' Restriction on property

Parameters:

propertyName - property path

value - restriction value

like

protected javax.persistence.criteria.Predicate like(String propertyName,
                                        String value)

Add a like Restriction adding wrapping value on '%' and replacing '*' for '%'

Parameters:

propertyName - property path

value - text for the ilike restriction

addAndWhere

protected <Y> void addAndWhere(javax.persistence.criteria.CriteriaQuery<Y> criteria,
                   javax.persistence.criteria.CriteriaBuilder cb,
                   List<javax.persistence.criteria.Predicate> predicates)

Add where expression to criteria with AND.

Parameters:

criteria - criteria

cb - Criteria Builder

predicates - predicates to add

getPath

protected <Y> javax.persistence.criteria.Path<Y> getPath(javax.persistence.criteria.Path<?> path,
                                             String name)

return property path

Parameters:

path - root path

name - property name

Returns:

the path for property

addPredicateIfNotNull

protected void addPredicateIfNotNull(List<javax.persistence.criteria.Predicate> predicates,
                         javax.persistence.criteria.Predicate predicate)