org.springframework.integration.jpa.core
Class DefaultJpaOperations

java.lang.Object
  org.springframework.integration.jpa.core.DefaultJpaOperations

All Implemented Interfaces:

org.springframework.beans.factory.InitializingBean, JpaOperations

public class DefaultJpaOperations
extends java.lang.Object

Class similar to JPA template limited to the operations required for the JPA adapters/gateway not using JpaTemplate as the class is deprecated since Spring 3.1

Since:

2.2

Author:

Amol Nayak, Gunnar Hillert

Field Summary

protected javax.persistence.EntityManager

entityManager

Constructor Summary

DefaultJpaOperations()

Method Summary

void	afterPropertiesSet()
void	delete(java.lang.Object entity)
void	deleteInBatch(java.lang.Iterable<?> entities)
int	executeUpdate(java.lang.String updateQuery, ParameterSource source) Executes the given update statement and uses the given parameter source to set the required query parameters.
int	executeUpdateWithNamedQuery(java.lang.String updateQuery, ParameterSource source)
int	executeUpdateWithNativeQuery(java.lang.String updateQuery, ParameterSource source)
<T> T	find(java.lang.Class<T> entityType, java.lang.Object id) Find an Entity of given type with the given primary key type.
java.util.List<?>	getResultListForClass(java.lang.Class<?> entityClass, int maxNumberOfResults)
java.util.List<?>	getResultListForNamedQuery(java.lang.String selectNamedQuery, ParameterSource parameterSource, int maxNumberOfResults)
java.util.List<?>	getResultListForNativeQuery(java.lang.String selectQuery, java.lang.Class<?> entityClass, ParameterSource parameterSource, int maxNumberOfResults)
java.util.List<?>	getResultListForQuery(java.lang.String query, ParameterSource source) Executes the provided query to return a list of results
java.util.List<?>	getResultListForQuery(java.lang.String queryString, ParameterSource source, int maxNumberOfResults) Executes the provided query to return a list of results.
java.lang.Object	getSingleResultForQuery(java.lang.String queryString, ParameterSource source) Executes the provided query to return a single element
java.lang.Object	merge(java.lang.Object entity) The entity to be merged with the entity manager
protected void	onInit() Subclasses may implement this for initialization logic.
void	persist(java.lang.Object entity) Persists the entity
void	setEntityManager(javax.persistence.EntityManager entityManager)
void	setEntityManagerFactory(javax.persistence.EntityManagerFactory entityManagerFactory)

Methods inherited from class java.lang.Object

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

Field Detail

entityManager

protected javax.persistence.EntityManager entityManager

Constructor Detail

DefaultJpaOperations

public DefaultJpaOperations()

Method Detail

delete

public void delete(java.lang.Object entity)

deleteInBatch

public void deleteInBatch(java.lang.Iterable<?> entities)

executeUpdate

public int executeUpdate(java.lang.String updateQuery,
                         ParameterSource source)

Description copied from interface: JpaOperations

Executes the given update statement and uses the given parameter source to set the required query parameters.

Parameters:

updateQuery - Must Not be empty.

source - Must Not be null.

Returns:

The number of entities updated

executeUpdateWithNamedQuery

public int executeUpdateWithNamedQuery(java.lang.String updateQuery,
                                       ParameterSource source)

Returns:

The number of entities updated

executeUpdateWithNativeQuery

public int executeUpdateWithNativeQuery(java.lang.String updateQuery,
                                        ParameterSource source)

Returns:

The number of entities updated

find

public <T> T find(java.lang.Class<T> entityType,
                  java.lang.Object id)

Description copied from interface: JpaOperations

Find an Entity of given type with the given primary key type.

Returns:

The entity if it exist, null is returned otherwise

getResultListForClass

public java.util.List<?> getResultListForClass(java.lang.Class<?> entityClass,
                                               int maxNumberOfResults)

Returns:

List of found entities

getResultListForNamedQuery

public java.util.List<?> getResultListForNamedQuery(java.lang.String selectNamedQuery,
                                                    ParameterSource parameterSource,
                                                    int maxNumberOfResults)

Returns:

List of found entities

getResultListForNativeQuery

public java.util.List<?> getResultListForNativeQuery(java.lang.String selectQuery,
                                                     java.lang.Class<?> entityClass,
                                                     ParameterSource parameterSource,
                                                     int maxNumberOfResults)

Returns:

List of found entities

getResultListForQuery

public java.util.List<?> getResultListForQuery(java.lang.String query,
                                               ParameterSource source)

Description copied from interface: JpaOperations

Executes the provided query to return a list of results

source - the Parameter source for this query to be executed, if none then set as null

Returns:

List of found entities

getResultListForQuery

public java.util.List<?> getResultListForQuery(java.lang.String queryString,
                                               ParameterSource source,
                                               int maxNumberOfResults)

Description copied from interface: JpaOperations

Executes the provided query to return a list of results.

Parameters:

queryString - Must not be null or empty

source - the Parameter source for this query to be executed, if none then set null

maxNumberOfResults - Must be a non-negative value

Returns:

List of found entities

getSingleResultForQuery

public java.lang.Object getSingleResultForQuery(java.lang.String queryString,
                                                ParameterSource source)

Description copied from interface: JpaOperations

Executes the provided query to return a single element

Parameters:

queryString - Must not be empty

source - the Parameter source for this query to be executed, if none then set as null

Returns:

Will always return a result. If no object was found in the database an exception is raised.

merge

public java.lang.Object merge(java.lang.Object entity)

Description copied from interface: JpaOperations

The entity to be merged with the entity manager

Parameters:

entity - Must not be null.

Returns:

The merged managed instance of the entity.

persist

public void persist(java.lang.Object entity)

Description copied from interface: JpaOperations

Persists the entity

Parameters:

entity - Must not be null

setEntityManager

public void setEntityManager(javax.persistence.EntityManager entityManager)

setEntityManagerFactory

public void setEntityManagerFactory(javax.persistence.EntityManagerFactory entityManagerFactory)

afterPropertiesSet

public final void afterPropertiesSet()

Specified by:

afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean

onInit

protected void onInit()

Subclasses may implement this for initialization logic.