org.springframework.data.jpa.repository.support

Class QuerydslRepositorySupport

java.lang.Object

org.springframework.data.jpa.repository.support.QuerydslRepositorySupport

@Repository
public abstract class QuerydslRepositorySupport
extends Object

Base class for implementing repositories using Querydsl library.

Author:

Oliver Gierke, Mark Paluch

Constructor Summary

Constructors

Constructor and Description
QuerydslRepositorySupport(Class<?> domainClass) Creates a new QuerydslRepositorySupport instance for the given domain type.

Method Summary

Modifier and Type	Method and Description
protected com.querydsl.core.dml.DeleteClause<com.querydsl.jpa.impl.JPADeleteClause>	delete(com.querydsl.core.types.EntityPath<?> path) Returns a fresh DeleteClause.
protected com.querydsl.jpa.JPQLQuery<Object>	from(com.querydsl.core.types.EntityPath<?>... paths) Returns a fresh JPQLQuery.
protected <T> com.querydsl.jpa.JPQLQuery<T>	from(com.querydsl.core.types.EntityPath<T> path) Returns a JPQLQuery for the given EntityPath.
protected <T> com.querydsl.core.types.dsl.PathBuilder<T>	getBuilder() Returns a PathBuilder for the configured domain type.
protected javax.persistence.EntityManager	getEntityManager() Returns the EntityManager.
protected Querydsl	getQuerydsl() Returns the underlying Querydsl helper instance.
void	setEntityManager(javax.persistence.EntityManager entityManager) Setter to inject EntityManager.
protected com.querydsl.core.dml.UpdateClause<com.querydsl.jpa.impl.JPAUpdateClause>	update(com.querydsl.core.types.EntityPath<?> path) Returns a fresh UpdateClause.
void	validate() Callback to verify configuration.

Methods inherited from class java.lang.Object

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

Constructor Detail

QuerydslRepositorySupport

public QuerydslRepositorySupport(Class<?> domainClass)

Creates a new QuerydslRepositorySupport instance for the given domain type.

Parameters:

domainClass - must not be null.

Method Detail

setEntityManager

@Autowired
public void setEntityManager(javax.persistence.EntityManager entityManager)

Setter to inject EntityManager.

Parameters:

entityManager - must not be null.

validate

@PostConstruct
public void validate()

Callback to verify configuration. Used by containers.

getEntityManager

@Nullable
protected javax.persistence.EntityManager getEntityManager()

Returns the EntityManager.

Returns:

the entityManager

from

protected com.querydsl.jpa.JPQLQuery<Object> from(com.querydsl.core.types.EntityPath<?>... paths)

Returns a fresh JPQLQuery.

Parameters:

paths - must not be null.

Returns:

the Querydsl JPQLQuery.

from

protected <T> com.querydsl.jpa.JPQLQuery<T> from(com.querydsl.core.types.EntityPath<T> path)

Returns a JPQLQuery for the given EntityPath.

Parameters:

path - must not be null.

Returns:

delete

protected com.querydsl.core.dml.DeleteClause<com.querydsl.jpa.impl.JPADeleteClause> delete(com.querydsl.core.types.EntityPath<?> path)

Returns a fresh DeleteClause.

Parameters:

path -

Returns:

the Querydsl DeleteClause.

update

protected com.querydsl.core.dml.UpdateClause<com.querydsl.jpa.impl.JPAUpdateClause> update(com.querydsl.core.types.EntityPath<?> path)

Returns a fresh UpdateClause.

Parameters:

path -

Returns:

the Querydsl UpdateClause.

getBuilder

protected <T> com.querydsl.core.types.dsl.PathBuilder<T> getBuilder()

Returns a PathBuilder for the configured domain type.

Type Parameters:

T -

Returns:

the Querdsl PathBuilder.

getQuerydsl

@Nullable
protected Querydsl getQuerydsl()

Returns the underlying Querydsl helper instance.

Returns: