GenericDAOImpl (Hibernate Generic DAO

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com.googlecode.genericdao.dao.jpa
Class GenericDAOImpl<T,ID extends Serializable>

java.lang.Object
  com.googlecode.genericdao.dao.jpa.JPABaseDAO
      com.googlecode.genericdao.dao.jpa.GenericDAOImpl<T,ID>


Type Parameters:: T - The type of the domain object for which this instance is to be used.; ID - The type of the id of the domain object for which this instance is to be used.

All Implemented Interfaces:: GenericDAO<T,ID>

public class GenericDAOImpl<T,ID extends Serializable>
extends JPABaseDAO
implements GenericDAO<T,ID>
extends JPABaseDAO
implements GenericDAO<T,ID>

Implementation of GenericDAO using Hibernate. The SessionFactory property is annotated for automatic resource injection.

Author:: dwolverton

Field Summary
`protected Class<T>`	`persistentClass`

Constructor Summary
`GenericDAOImpl()`

Method Summary

int count(ISearch search)
Returns the total number of results that would be returned using the given ISearch if there were no paging or maxResults limits.

T[] find(ID... ids)
Get all entities of the specified type from the datastore that have one of these ids.

T find(ID id)
Get the entity with the specified type and id from the datastore.

List<T> findAll()
Get a list of all the objects of the specified type.

void flush()
Flushes changes in the Hibernate session to the datastore.

Filter getFilterFromExample(T example)
Generates a search filter from the given example using default options.

Filter getFilterFromExample(T example, ExampleOptions options)
Generates a search filter from the given example using the specified options.

T getReference(ID id)
Get a reference to the entity with the specified type and id from the datastore.

T[] getReferences(ID... ids)
Get a reference to the entities of the specified type with the given ids from the datastore.

boolean isAttached(T entity)
Returns true if the object is connected to the current Hibernate session.

T[] merge(T... entities)
Copy the state of the given objects onto the persistent objects with the same identifier.

T merge(T entity)
Copy the state of the given object onto the persistent object with the same identifier.

void persist(T... entities)
Make a transient instance persistent and add it to the datastore.

void refresh(T... entities)
Refresh the content of the given entity from the current datastore state.

void remove(T... entities)
Remove all of the specified entities from the datastore.

boolean remove(T entity)
Remove the specified entity from the datastore.

boolean removeById(ID id)
Remove the entity with the specified type and id from the datastore.

void removeByIds(ID... ids)
Remove all the entities of the given type from the datastore that have one of these ids.

T[] save(T... entities)
For each entity: If an entity with the same ID already exists in the database, merge the changes into that entity.

T save(T entity)
If an entity with the same ID already exists in the database, merge the changes into that entity.





<RT> List<RT>

search(ISearch search)
Search for entities given the search parameters in the specified ISearch object.





<RT> SearchResult<RT>

searchAndCount(ISearch search)
Returns a SearchResult object that includes both the list of results like search() and the total length like count().





<RT> RT

searchUnique(ISearch search)
Search for a single entity using the given parameters.

Methods inherited from class com.googlecode.genericdao.dao.jpa.JPABaseDAO
`_all, _contains, _count, _count, _count, _exists, _exists, _exists, _find, _find, _flush, _getFilterFromExample, _getFilterFromExample, _getReference, _getReferences, _merge, _merge, _persist, _persistOrMerge, _persistOrMerge, _refresh, _removeById, _removeByIds, _removeEntities, _removeEntity, _search, _search, _searchAndCount, _searchAndCount, _searchUnique, _searchUnique, em, getMetadataUtil, getSearchProcessor, setEntityManager, setSearchProcessor`

Methods inherited from class com.googlecode.genericdao.dao.jpa.JPABaseDAO

_all, _contains, _count, _count, _count, _exists, _exists, _exists, _find, _find, _flush, _getFilterFromExample, _getFilterFromExample, _getReference, _getReferences, _merge, _merge, _persist, _persistOrMerge, _persistOrMerge, _refresh, _removeById, _removeByIds, _removeEntities, _removeEntity, _search, _search, _searchAndCount, _searchAndCount, _searchUnique, _searchUnique, em, getMetadataUtil, getSearchProcessor, setEntityManager, setSearchProcessor

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

persistentClass

protected Class<T> persistentClass

Constructor Detail

GenericDAOImpl

public GenericDAOImpl()

Method Detail