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org.springframework.orm.hibernate3
Interface HibernateOperations

All Known Implementing Classes:
HibernateTemplate
public interface HibernateOperations

Interface that specifies a basic set of Hibernate operations, implemented by HibernateTemplate. Not often used, but a useful option to enhance testability, as it can easily be mocked or stubbed.

Defines HibernateTemplate's data access methods that mirror various Session methods. Users are strongly encouraged to read the Hibernate Session javadocs for details on the semantics of those methods.

Note that operations that return an Iterator (i.e. iterate(..)) are supposed to be used within Spring-driven or JTA-driven transactions (with HibernateTransactionManager, JtaTransactionManager, or EJB CMT). Else, the Iterator won't be able to read results from its ResultSet anymore, as the underlying Hibernate Session will already have been closed.

Note that lazy loading will just work with an open Hibernate Session, either within a transaction or within OpenSessionInViewFilter/ OpenSessionInViewInterceptor. Furthermore, some operations just make sense within transactions, for example: contains, evict, lock, flush, clear.

Since:
1.2
Author:
Juergen Hoeller
See Also:
HibernateTemplate, Session, HibernateTransactionManager, JtaTransactionManager, OpenSessionInViewFilter, OpenSessionInViewInterceptor

Method Summary
 int bulkUpdate(String queryString)
          Update/delete all objects according to the given query.
 int bulkUpdate(String queryString, Object... values)
          Update/delete all objects according to the given query, binding a number of values to "?" parameters in the query string.
 int bulkUpdate(String queryString, Object value)
          Update/delete all objects according to the given query, binding one value to a "?" parameter in the query string.
 void clear()
          Remove all objects from the Session cache, and cancel all pending saves, updates and deletes.
 void closeIterator(Iterator it)
          Immediately close an Iterator created by any of the various iterate(..) operations, instead of waiting until the session is closed or disconnected.
 boolean contains(Object entity)
          Check whether the given object is in the Session cache.
 void delete(Object entity)
          Delete the given persistent instance.
 void delete(Object entity, org.hibernate.LockMode lockMode)
          Delete the given persistent instance.
 void delete(String entityName, Object entity)
          Delete the given persistent instance.
 void delete(String entityName, Object entity, org.hibernate.LockMode lockMode)
          Delete the given persistent instance.
 void deleteAll(Collection entities)
          Delete all given persistent instances.
 org.hibernate.Filter enableFilter(String filterName)
          Return an enabled Hibernate Filter for the given filter name.
 void evict(Object entity)
          Remove the given object from the Session cache.
<T> T
execute(HibernateCallback<T> action)
          Execute the action specified by the given action object within a Session.
 List executeFind(HibernateCallback<?> action)
          Execute the specified action assuming that the result object is a List.
 List find(String queryString)
          Execute an HQL query.
 List find(String queryString, Object... values)
          Execute an HQL query, binding a number of values to "?" parameters in the query string.
 List find(String queryString, Object value)
          Execute an HQL query, binding one value to a "?" parameter in the query string.
 List findByCriteria(org.hibernate.criterion.DetachedCriteria criteria)
          Execute a query based on a given Hibernate criteria object.
 List findByCriteria(org.hibernate.criterion.DetachedCriteria criteria, int firstResult, int maxResults)
          Execute a query based on the given Hibernate criteria object.
 List findByExample(Object exampleEntity)
          Execute a query based on the given example entity object.
 List findByExample(Object exampleEntity, int firstResult, int maxResults)
          Execute a query based on a given example entity object.
 List findByExample(String entityName, Object exampleEntity)
          Execute a query based on the given example entity object.
 List findByExample(String entityName, Object exampleEntity, int firstResult, int maxResults)
          Execute a query based on a given example entity object.
 List findByNamedParam(String queryString, String[] paramNames, Object[] values)
          Execute an HQL query, binding a number of values to ":" named parameters in the query string.
 List findByNamedParam(String queryString, String paramName, Object value)
          Execute an HQL query, binding one value to a ":" named parameter in the query string.
 List findByNamedQuery(String queryName)
          Execute a named query.
 List findByNamedQuery(String queryName, Object... values)
          Execute a named query binding a number of values to "?" parameters in the query string.
 List findByNamedQuery(String queryName, Object value)
          Execute a named query, binding one value to a "?" parameter in the query string.
 List findByNamedQueryAndNamedParam(String queryName, String[] paramNames, Object[] values)
          Execute a named query, binding a number of values to ":" named parameters in the query string.
 List findByNamedQueryAndNamedParam(String queryName, String paramName, Object value)
          Execute a named query, binding one value to a ":" named parameter in the query string.
 List findByNamedQueryAndValueBean(String queryName, Object valueBean)
          Execute a named query, binding the properties of the given bean to ":" named parameters in the query string.
 List findByValueBean(String queryString, Object valueBean)
          Execute an HQL query, binding the properties of the given bean to named parameters in the query string.
 void flush()
          Flush all pending saves, updates and deletes to the database.
<T> T
get(Class<T> entityClass, Serializable id)
          Return the persistent instance of the given entity class with the given identifier, or null if not found.
<T> T
get(Class<T> entityClass, Serializable id, org.hibernate.LockMode lockMode)
          Return the persistent instance of the given entity class with the given identifier, or null if not found.
 Object get(String entityName, Serializable id)
          Return the persistent instance of the given entity class with the given identifier, or null if not found.
 Object get(String entityName, Serializable id, org.hibernate.LockMode lockMode)
          Return the persistent instance of the given entity class with the given identifier, or null if not found.
 void initialize(Object proxy)
          Force initialization of a Hibernate proxy or persistent collection.
 Iterator iterate(String queryString)
          Execute a query for persistent instances.
 Iterator iterate(String queryString, Object... values)
          Execute a query for persistent instances, binding a number of values to "?" parameters in the query string.
 Iterator iterate(String queryString, Object value)
          Execute a query for persistent instances, binding one value to a "?" parameter in the query string.
<T> T
load(Class<T> entityClass, Serializable id)
          Return the persistent instance of the given entity class with the given identifier, throwing an exception if not found.
<T> T
load(Class<T> entityClass, Serializable id, org.hibernate.LockMode lockMode)
          Return the persistent instance of the given entity class with the given identifier, throwing an exception if not found.
 void load(Object entity, Serializable id)
          Load the persistent instance with the given identifier into the given object, throwing an exception if not found.
 Object load(String entityName, Serializable id)
          Return the persistent instance of the given entity class with the given identifier, throwing an exception if not found.
 Object load(String entityName, Serializable id, org.hibernate.LockMode lockMode)
          Return the persistent instance of the given entity class with the given identifier, throwing an exception if not found.
<T> List<T>
loadAll(Class<T> entityClass)
          Return all persistent instances of the given entity class.
 void lock(Object entity, org.hibernate.LockMode lockMode)
          Obtain the specified lock level upon the given object, implicitly checking whether the corresponding database entry still exists.
 void lock(String entityName, Object entity, org.hibernate.LockMode lockMode)
          Obtain the specified lock level upon the given object, implicitly checking whether the corresponding database entry still exists.
<T> T
merge(String entityName, T entity)
          Copy the state of the given object onto the persistent object with the same identifier.
<T> T
merge(T entity)
          Copy the state of the given object onto the persistent object with the same identifier.
 void persist(Object entity)
          Persist the given transient instance.
 void persist(String entityName, Object entity)
          Persist the given transient instance.
 void refresh(Object entity)
          Re-read the state of the given persistent instance.
 void refresh(Object entity, org.hibernate.LockMode lockMode)
          Re-read the state of the given persistent instance.
 void replicate(Object entity, org.hibernate.ReplicationMode replicationMode)
          Persist the state of the given detached instance according to the given replication mode, reusing the current identifier value.
 void replicate(String entityName, Object entity, org.hibernate.ReplicationMode replicationMode)
          Persist the state of the given detached instance according to the given replication mode, reusing the current identifier value.
 Serializable save(Object entity)
          Persist the given transient instance.
 Serializable save(String entityName, Object entity)
          Persist the given transient instance.
 void saveOrUpdate(Object entity)
          Save or update the given persistent instance, according to its id (matching the configured "unsaved-value"?).
 void saveOrUpdate(String entityName, Object entity)
          Save or update the given persistent instance, according to its id (matching the configured "unsaved-value"?).
 void saveOrUpdateAll(Collection entities)
          Deprecated. as of Spring 2.5, in favor of individual saveOrUpdate or merge usage
 void update(Object entity)
          Update the given persistent instance, associating it with the current Hibernate Session.
 void update(Object entity, org.hibernate.LockMode lockMode)
          Update the given persistent instance, associating it with the current Hibernate Session.
 void update(String entityName, Object entity)
          Update the given persistent instance, associating it with the current Hibernate Session.
 void update(String entityName, Object entity, org.hibernate.LockMode lockMode)
          Update the given persistent instance, associating it with the current Hibernate Session.
 

Method Detail

execute

<T> T execute(HibernateCallback<T> action)
          throws DataAccessException
Execute the action specified by the given action object within a Session.

Application exceptions thrown by the action object get propagated to the caller (can only be unchecked). Hibernate exceptions are transformed into appropriate DAO ones. Allows for returning a result object, that is a domain object or a collection of domain objects.

Note: Callback code is not supposed to handle transactions itself! Use an appropriate transaction manager like HibernateTransactionManager. Generally, callback code must not touch any Session lifecycle methods, like close, disconnect, or reconnect, to let the template do its work.

Parameters:
action - callback object that specifies the Hibernate action
Returns:
a result object returned by the action, or null
Throws:
DataAccessException - in case of Hibernate errors
See Also:
HibernateTransactionManager, org.springframework.dao, org.springframework.transaction, Session

executeFind

List executeFind(HibernateCallback<?> action)
                 throws DataAccessException
Execute the specified action assuming that the result object is a List.

This is a convenience method for executing Hibernate find calls or queries within an action.

Parameters:
action - calback object that specifies the Hibernate action
Returns:
a List result returned by the action, or null
Throws:
DataAccessException - in case of Hibernate errors

get

<T> T get(Class<T> entityClass,
          Serializable id)
      throws DataAccessException
Return the persistent instance of the given entity class with the given identifier, or null if not found.

This method is a thin wrapper around Session.get(Class, java.io.Serializable) for convenience. For an explanation of the exact semantics of this method, please do refer to the Hibernate API documentation in the first instance.

Parameters:
entityClass - a persistent class
id - the identifier of the persistent instance
Returns:
the persistent instance, or null if not found
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.get(Class, java.io.Serializable)

get

<T> T get(Class<T> entityClass,
          Serializable id,
          org.hibernate.LockMode lockMode)
      throws DataAccessException
Return the persistent instance of the given entity class with the given identifier, or null if not found.

Obtains the specified lock mode if the instance exists.

This method is a thin wrapper around Session.get(Class, java.io.Serializable, LockMode) for convenience. For an explanation of the exact semantics of this method, please do refer to the Hibernate API documentation in the first instance.

Parameters:
entityClass - a persistent class
id - the identifier of the persistent instance
lockMode - the lock mode to obtain
Returns:
the persistent instance, or null if not found
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.get(Class, java.io.Serializable, org.hibernate.LockMode)

get

Object get(String entityName,
           Serializable id)
           throws DataAccessException
Return the persistent instance of the given entity class with the given identifier, or null if not found.

This method is a thin wrapper around Session.get(String, java.io.Serializable) for convenience. For an explanation of the exact semantics of this method, please do refer to the Hibernate API documentation in the first instance.

Parameters:
entityName - the name of the persistent entity
id - the identifier of the persistent instance
Returns:
the persistent instance, or null if not found
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.get(Class, java.io.Serializable)

get

Object get(String entityName,
           Serializable id,
           org.hibernate.LockMode lockMode)
           throws DataAccessException
Return the persistent instance of the given entity class with the given identifier, or null if not found. Obtains the specified lock mode if the instance exists.

This method is a thin wrapper around Session.get(String, java.io.Serializable, LockMode) for convenience. For an explanation of the exact semantics of this method, please do refer to the Hibernate API documentation in the first instance.

Parameters:
entityName - the name of the persistent entity
id - the identifier of the persistent instance
lockMode - the lock mode to obtain
Returns:
the persistent instance, or null if not found
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.get(Class, java.io.Serializable, org.hibernate.LockMode)

load

<T> T load(Class<T> entityClass,
           Serializable id)
       throws DataAccessException
Return the persistent instance of the given entity class with the given identifier, throwing an exception if not found.

This method is a thin wrapper around Session.load(Class, java.io.Serializable) for convenience. For an explanation of the exact semantics of this method, please do refer to the Hibernate API documentation in the first instance.

Parameters:
entityClass - a persistent class
id - the identifier of the persistent instance
Returns:
the persistent instance
Throws:
ObjectRetrievalFailureException - if not found
DataAccessException - in case of Hibernate errors
See Also:
Session.load(Class, java.io.Serializable)

load

<T> T load(Class<T> entityClass,
           Serializable id,
           org.hibernate.LockMode lockMode)
       throws DataAccessException
Return the persistent instance of the given entity class with the given identifier, throwing an exception if not found. Obtains the specified lock mode if the instance exists.

This method is a thin wrapper around Session.load(Class, java.io.Serializable, LockMode) for convenience. For an explanation of the exact semantics of this method, please do refer to the Hibernate API documentation in the first instance.

Parameters:
entityClass - a persistent class
id - the identifier of the persistent instance
lockMode - the lock mode to obtain
Returns:
the persistent instance
Throws:
ObjectRetrievalFailureException - if not found
DataAccessException - in case of Hibernate errors
See Also:
Session.load(Class, java.io.Serializable)

load

Object load(String entityName,
            Serializable id)
            throws DataAccessException
Return the persistent instance of the given entity class with the given identifier, throwing an exception if not found.

This method is a thin wrapper around Session.load(String, java.io.Serializable) for convenience. For an explanation of the exact semantics of this method, please do refer to the Hibernate API documentation in the first instance.

Parameters:
entityName - the name of the persistent entity
id - the identifier of the persistent instance
Returns:
the persistent instance
Throws:
ObjectRetrievalFailureException - if not found
DataAccessException - in case of Hibernate errors
See Also:
Session.load(Class, java.io.Serializable)

load

Object load(String entityName,
            Serializable id,
            org.hibernate.LockMode lockMode)
            throws DataAccessException
Return the persistent instance of the given entity class with the given identifier, throwing an exception if not found.

Obtains the specified lock mode if the instance exists.

This method is a thin wrapper around Session.load(String, java.io.Serializable, LockMode) for convenience. For an explanation of the exact semantics of this method, please do refer to the Hibernate API documentation in the first instance.

Parameters:
entityName - the name of the persistent entity
id - the identifier of the persistent instance
lockMode - the lock mode to obtain
Returns:
the persistent instance
Throws:
ObjectRetrievalFailureException - if not found
DataAccessException - in case of Hibernate errors
See Also:
Session.load(Class, java.io.Serializable)

loadAll

<T> List<T> loadAll(Class<T> entityClass)
                throws DataAccessException
Return all persistent instances of the given entity class. Note: Use queries or criteria for retrieving a specific subset.

Parameters:
entityClass - a persistent class
Returns:
a List containing 0 or more persistent instances
Throws:
DataAccessException - if there is a Hibernate error
See Also:
Session.createCriteria(java.lang.Class)

load

void load(Object entity,
          Serializable id)
          throws DataAccessException
Load the persistent instance with the given identifier into the given object, throwing an exception if not found.

This method is a thin wrapper around Session.load(Object, java.io.Serializable) for convenience. For an explanation of the exact semantics of this method, please do refer to the Hibernate API documentation in the first instance.

Parameters:
entity - the object (of the target class) to load into
id - the identifier of the persistent instance
Throws:
ObjectRetrievalFailureException - if not found
DataAccessException - in case of Hibernate errors
See Also:
Session.load(Object, java.io.Serializable)

refresh

void refresh(Object entity)
             throws DataAccessException
Re-read the state of the given persistent instance.

Parameters:
entity - the persistent instance to re-read
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.refresh(Object)

refresh

void refresh(Object entity,
             org.hibernate.LockMode lockMode)
             throws DataAccessException
Re-read the state of the given persistent instance. Obtains the specified lock mode for the instance.

Parameters:
entity - the persistent instance to re-read
lockMode - the lock mode to obtain
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.refresh(Object, org.hibernate.LockMode)

contains

boolean contains(Object entity)
                 throws DataAccessException
Check whether the given object is in the Session cache.

Parameters:
entity - the persistence instance to check
Returns:
whether the given object is in the Session cache
Throws:
DataAccessException - if there is a Hibernate error
See Also:
Session.contains(java.lang.Object)

evict

void evict(Object entity)
           throws DataAccessException
Remove the given object from the Session cache.

Parameters:
entity - the persistent instance to evict
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.evict(java.lang.Object)

initialize

void initialize(Object proxy)
                throws DataAccessException
Force initialization of a Hibernate proxy or persistent collection.

Parameters:
proxy - a proxy for a persistent object or a persistent collection
Throws:
DataAccessException - if we can't initialize the proxy, for example because it is not associated with an active Session
See Also:
Hibernate.initialize(java.lang.Object)

enableFilter

org.hibernate.Filter enableFilter(String filterName)
                                  throws IllegalStateException
Return an enabled Hibernate Filter for the given filter name. The returned Filter instance can be used to set filter parameters.

Parameters:
filterName - the name of the filter
Returns:
the enabled Hibernate Filter (either already enabled or enabled on the fly by this operation)
Throws:
IllegalStateException - if we are not running within a transactional Session (in which case this operation does not make sense)

lock

void lock(Object entity,
          org.hibernate.LockMode lockMode)
          throws DataAccessException
Obtain the specified lock level upon the given object, implicitly checking whether the corresponding database entry still exists.

Parameters:
entity - the persistent instance to lock
lockMode - the lock mode to obtain
Throws:
ObjectOptimisticLockingFailureException - if not found
DataAccessException - in case of Hibernate errors
See Also:
Session.lock(Object, org.hibernate.LockMode)

lock

void lock(String entityName,
          Object entity,
          org.hibernate.LockMode lockMode)
          throws DataAccessException
Obtain the specified lock level upon the given object, implicitly checking whether the corresponding database entry still exists.

Parameters:
entityName - the name of the persistent entity
entity - the persistent instance to lock
lockMode - the lock mode to obtain
Throws:
ObjectOptimisticLockingFailureException - if not found
DataAccessException - in case of Hibernate errors
See Also:
Session.lock(String, Object, org.hibernate.LockMode)

save

Serializable save(Object entity)
                  throws DataAccessException
Persist the given transient instance.

Parameters:
entity - the transient instance to persist
Returns:
the generated identifier
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.save(Object)

save

Serializable save(String entityName,
                  Object entity)
                  throws DataAccessException
Persist the given transient instance.

Parameters:
entityName - the name of the persistent entity
entity - the transient instance to persist
Returns:
the generated identifier
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.save(String, Object)

update

void update(Object entity)
            throws DataAccessException
Update the given persistent instance, associating it with the current Hibernate Session.

Parameters:
entity - the persistent instance to update
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.update(Object)

update

void update(Object entity,
            org.hibernate.LockMode lockMode)
            throws DataAccessException
Update the given persistent instance, associating it with the current Hibernate Session.

Obtains the specified lock mode if the instance exists, implicitly checking whether the corresponding database entry still exists.

Parameters:
entity - the persistent instance to update
lockMode - the lock mode to obtain
Throws:
ObjectOptimisticLockingFailureException - if not found
DataAccessException - in case of Hibernate errors
See Also:
Session.update(Object)

update

void update(String entityName,
            Object entity)
            throws DataAccessException
Update the given persistent instance, associating it with the current Hibernate Session.

Parameters:
entityName - the name of the persistent entity
entity - the persistent instance to update
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.update(String, Object)

update

void update(String entityName,
            Object entity,
            org.hibernate.LockMode lockMode)
            throws DataAccessException
Update the given persistent instance, associating it with the current Hibernate Session.

Obtains the specified lock mode if the instance exists, implicitly checking whether the corresponding database entry still exists.

Parameters:
entityName - the name of the persistent entity
entity - the persistent instance to update
lockMode - the lock mode to obtain
Throws:
ObjectOptimisticLockingFailureException - if not found
DataAccessException - in case of Hibernate errors
See Also:
Session.update(String, Object)

saveOrUpdate

void saveOrUpdate(Object entity)
                  throws DataAccessException
Save or update the given persistent instance, according to its id (matching the configured "unsaved-value"?). Associates the instance with the current Hibernate Session.

Parameters:
entity - the persistent instance to save or update (to be associated with the Hibernate Session)
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.saveOrUpdate(Object)

saveOrUpdate

void saveOrUpdate(String entityName,
                  Object entity)
                  throws DataAccessException
Save or update the given persistent instance, according to its id (matching the configured "unsaved-value"?). Associates the instance with the current Hibernate Session.

Parameters:
entityName - the name of the persistent entity
entity - the persistent instance to save or update (to be associated with the Hibernate Session)
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.saveOrUpdate(String, Object)

saveOrUpdateAll

@Deprecated
void saveOrUpdateAll(Collection entities)
                     throws DataAccessException
Deprecated. as of Spring 2.5, in favor of individual saveOrUpdate or merge usage

Save or update all given persistent instances, according to its id (matching the configured "unsaved-value"?). Associates the instances with the current Hibernate Session.

Parameters:
entities - the persistent instances to save or update (to be associated with the Hibernate Session)
Throws:
DataAccessException - in case of Hibernate errors

replicate

void replicate(Object entity,
               org.hibernate.ReplicationMode replicationMode)
               throws DataAccessException
Persist the state of the given detached instance according to the given replication mode, reusing the current identifier value.

Parameters:
entity - the persistent object to replicate
replicationMode - the Hibernate ReplicationMode
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.replicate(Object, org.hibernate.ReplicationMode)

replicate

void replicate(String entityName,
               Object entity,
               org.hibernate.ReplicationMode replicationMode)
               throws DataAccessException
Persist the state of the given detached instance according to the given replication mode, reusing the current identifier value.

Parameters:
entityName - the name of the persistent entity
entity - the persistent object to replicate
replicationMode - the Hibernate ReplicationMode
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.replicate(String, Object, org.hibernate.ReplicationMode)

persist

void persist(Object entity)
             throws DataAccessException
Persist the given transient instance. Follows JSR-220 semantics.

Similar to save, associating the given object with the current Hibernate Session.

Parameters:
entity - the persistent instance to persist
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.persist(Object), save(java.lang.Object)

persist

void persist(String entityName,
             Object entity)
             throws DataAccessException
Persist the given transient instance. Follows JSR-220 semantics.

Similar to save, associating the given object with the current Hibernate Session.

Parameters:
entityName - the name of the persistent entity
entity - the persistent instance to persist
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.persist(String, Object), save(java.lang.Object)

merge

<T> T merge(T entity)
        throws DataAccessException
Copy the state of the given object onto the persistent object with the same identifier. Follows JSR-220 semantics.

Similar to saveOrUpdate, but never associates the given object with the current Hibernate Session. In case of a new entity, the state will be copied over as well.

Note that merge will not update the identifiers in the passed-in object graph (in contrast to TopLink)! Consider registering Spring's IdTransferringMergeEventListener if you would like to have newly assigned ids transferred to the original object graph too.

Parameters:
entity - the object to merge with the corresponding persistence instance
Returns:
the updated, registered persistent instance
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.merge(Object), saveOrUpdate(java.lang.Object), IdTransferringMergeEventListener

merge

<T> T merge(String entityName,
            T entity)
        throws DataAccessException
Copy the state of the given object onto the persistent object with the same identifier. Follows JSR-220 semantics.

Similar to saveOrUpdate, but never associates the given object with the current Hibernate Session. In the case of a new entity, the state will be copied over as well.

Note that merge will not update the identifiers in the passed-in object graph (in contrast to TopLink)! Consider registering Spring's IdTransferringMergeEventListener if you would like to have newly assigned ids transferred to the original object graph too.

Parameters:
entityName - the name of the persistent entity
entity - the object to merge with the corresponding persistence instance
Returns:
the updated, registered persistent instance
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.merge(String, Object), saveOrUpdate(java.lang.Object)

delete

void delete(Object entity)
            throws DataAccessException
Delete the given persistent instance.

Parameters:
entity - the persistent instance to delete
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.delete(Object)

delete

void delete(Object entity,
            org.hibernate.LockMode lockMode)
            throws DataAccessException
Delete the given persistent instance.

Obtains the specified lock mode if the instance exists, implicitly checking whether the corresponding database entry still exists.

Parameters:
entity - the persistent instance to delete
lockMode - the lock mode to obtain
Throws:
ObjectOptimisticLockingFailureException - if not found
DataAccessException - in case of Hibernate errors
See Also:
Session.delete(Object)

delete

void delete(String entityName,
            Object entity)
            throws DataAccessException
Delete the given persistent instance.

Parameters:
entityName - the name of the persistent entity
entity - the persistent instance to delete
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.delete(Object)

delete

void delete(String entityName,
            Object entity,
            org.hibernate.LockMode lockMode)
            throws DataAccessException
Delete the given persistent instance.

Obtains the specified lock mode if the instance exists, implicitly checking whether the corresponding database entry still exists.

Parameters:
entityName - the name of the persistent entity
entity - the persistent instance to delete
lockMode - the lock mode to obtain
Throws:
ObjectOptimisticLockingFailureException - if not found
DataAccessException - in case of Hibernate errors
See Also:
Session.delete(Object)

deleteAll

void deleteAll(Collection entities)
               throws DataAccessException
Delete all given persistent instances.

This can be combined with any of the find methods to delete by query in two lines of code.

Parameters:
entities - the persistent instances to delete
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.delete(Object)

flush

void flush()
           throws DataAccessException
Flush all pending saves, updates and deletes to the database.

Only invoke this for selective eager flushing, for example when JDBC code needs to see certain changes within the same transaction. Else, it is preferable to rely on auto-flushing at transaction completion.

Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.flush()

clear

void clear()
           throws DataAccessException
Remove all objects from the Session cache, and cancel all pending saves, updates and deletes.

Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.clear()

find

List find(String queryString)
          throws DataAccessException
Execute an HQL query.

Parameters:
queryString - a query expressed in Hibernate's query language
Returns:
a List containing the results of the query execution
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.createQuery(java.lang.String)

find

List find(String queryString,
          Object value)
          throws DataAccessException
Execute an HQL query, binding one value to a "?" parameter in the query string.

Parameters:
queryString - a query expressed in Hibernate's query language
value - the value of the parameter
Returns:
a List containing the results of the query execution
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.createQuery(java.lang.String)

find

List find(String queryString,
          Object... values)
          throws DataAccessException
Execute an HQL query, binding a number of values to "?" parameters in the query string.

Parameters:
queryString - a query expressed in Hibernate's query language
values - the values of the parameters
Returns:
a List containing the results of the query execution
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.createQuery(java.lang.String)

findByNamedParam

List findByNamedParam(String queryString,
                      String paramName,
                      Object value)
                      throws DataAccessException
Execute an HQL query, binding one value to a ":" named parameter in the query string.

Parameters:
queryString - a query expressed in Hibernate's query language
paramName - the name of the parameter
value - the value of the parameter
Returns:
a List containing the results of the query execution
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.getNamedQuery(String)

findByNamedParam

List findByNamedParam(String queryString,
                      String[] paramNames,
                      Object[] values)
                      throws DataAccessException
Execute an HQL query, binding a number of values to ":" named parameters in the query string.

Parameters:
queryString - a query expressed in Hibernate's query language
paramNames - the names of the parameters
values - the values of the parameters
Returns:
a List containing the results of the query execution
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.getNamedQuery(String)

findByValueBean

List findByValueBean(String queryString,
                     Object valueBean)
                     throws DataAccessException
Execute an HQL query, binding the properties of the given bean to named parameters in the query string.

Parameters:
queryString - a query expressed in Hibernate's query language
valueBean - the values of the parameters
Returns:
a List containing the results of the query execution
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Query.setProperties(java.lang.Object), Session.createQuery(java.lang.String)

findByNamedQuery

List findByNamedQuery(String queryName)
                      throws DataAccessException
Execute a named query.

A named query is defined in a Hibernate mapping file.

Parameters:
queryName - the name of a Hibernate query in a mapping file
Returns:
a List containing the results of the query execution
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.getNamedQuery(String)

findByNamedQuery

List findByNamedQuery(String queryName,
                      Object value)
                      throws DataAccessException
Execute a named query, binding one value to a "?" parameter in the query string.

A named query is defined in a Hibernate mapping file.

Parameters:
queryName - the name of a Hibernate query in a mapping file
value - the value of the parameter
Returns:
a List containing the results of the query execution
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.getNamedQuery(String)

findByNamedQuery

List findByNamedQuery(String queryName,
                      Object... values)
                      throws DataAccessException
Execute a named query binding a number of values to "?" parameters in the query string.

A named query is defined in a Hibernate mapping file.

Parameters:
queryName - the name of a Hibernate query in a mapping file
values - the values of the parameters
Returns:
a List containing the results of the query execution
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.getNamedQuery(String)

findByNamedQueryAndNamedParam

List findByNamedQueryAndNamedParam(String queryName,
                                   String paramName,
                                   Object value)
                                   throws DataAccessException
Execute a named query, binding one value to a ":" named parameter in the query string.

A named query is defined in a Hibernate mapping file.

Parameters:
queryName - the name of a Hibernate query in a mapping file
paramName - the name of parameter
value - the value of the parameter
Returns:
a List containing the results of the query execution
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.getNamedQuery(String)

findByNamedQueryAndNamedParam

List findByNamedQueryAndNamedParam(String queryName,
                                   String[] paramNames,
                                   Object[] values)
                                   throws DataAccessException
Execute a named query, binding a number of values to ":" named parameters in the query string.

A named query is defined in a Hibernate mapping file.

Parameters:
queryName - the name of a Hibernate query in a mapping file
paramNames - the names of the parameters
values - the values of the parameters
Returns:
a List containing the results of the query execution
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.getNamedQuery(String)

findByNamedQueryAndValueBean

List findByNamedQueryAndValueBean(String queryName,
                                  Object valueBean)
                                  throws DataAccessException
Execute a named query, binding the properties of the given bean to ":" named parameters in the query string.

A named query is defined in a Hibernate mapping file.

Parameters:
queryName - the name of a Hibernate query in a mapping file
valueBean - the values of the parameters
Returns:
a List containing the results of the query execution
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Query.setProperties(java.lang.Object), Session.getNamedQuery(String)

findByCriteria

List findByCriteria(org.hibernate.criterion.DetachedCriteria criteria)
                    throws DataAccessException
Execute a query based on a given Hibernate criteria object.

Parameters:
criteria - the detached Hibernate criteria object. Note: Do not reuse criteria objects! They need to recreated per execution, due to the suboptimal design of Hibernate's criteria facility.
Returns:
a List containing 0 or more persistent instances
Throws:
DataAccessException - in case of Hibernate errors
See Also:
DetachedCriteria.getExecutableCriteria(org.hibernate.Session)

findByCriteria

List findByCriteria(org.hibernate.criterion.DetachedCriteria criteria,
                    int firstResult,
                    int maxResults)
                    throws DataAccessException
Execute a query based on the given Hibernate criteria object.

Parameters:
criteria - the detached Hibernate criteria object. Note: Do not reuse criteria objects! They need to recreated per execution, due to the suboptimal design of Hibernate's criteria facility.
firstResult - the index of the first result object to be retrieved (numbered from 0)
maxResults - the maximum number of result objects to retrieve (or <=0 for no limit)
Returns:
a List containing 0 or more persistent instances
Throws:
DataAccessException - in case of Hibernate errors
See Also:
DetachedCriteria.getExecutableCriteria(org.hibernate.Session), Criteria.setFirstResult(int), Criteria.setMaxResults(int)

findByExample

List findByExample(Object exampleEntity)
                   throws DataAccessException
Execute a query based on the given example entity object.

Parameters:
exampleEntity - an instance of the desired entity, serving as example for "query-by-example"
Returns:
a List containing 0 or more persistent instances
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Example.create(Object)

findByExample

List findByExample(String entityName,
                   Object exampleEntity)
                   throws DataAccessException
Execute a query based on the given example entity object.

Parameters:
entityName - the name of the persistent entity
exampleEntity - an instance of the desired entity, serving as example for "query-by-example"
Returns:
a List containing 0 or more persistent instances
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Example.create(Object)

findByExample

List findByExample(Object exampleEntity,
                   int firstResult,
                   int maxResults)
                   throws DataAccessException
Execute a query based on a given example entity object.

Parameters:
exampleEntity - an instance of the desired entity, serving as example for "query-by-example"
firstResult - the index of the first result object to be retrieved (numbered from 0)
maxResults - the maximum number of result objects to retrieve (or <=0 for no limit)
Returns:
a List containing 0 or more persistent instances
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Example.create(Object), Criteria.setFirstResult(int), Criteria.setMaxResults(int)

findByExample

List findByExample(String entityName,
                   Object exampleEntity,
                   int firstResult,
                   int maxResults)
                   throws DataAccessException
Execute a query based on a given example entity object.

Parameters:
entityName - the name of the persistent entity
exampleEntity - an instance of the desired entity, serving as example for "query-by-example"
firstResult - the index of the first result object to be retrieved (numbered from 0)
maxResults - the maximum number of result objects to retrieve (or <=0 for no limit)
Returns:
a List containing 0 or more persistent instances
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Example.create(Object), Criteria.setFirstResult(int), Criteria.setMaxResults(int)

iterate

Iterator iterate(String queryString)
                 throws DataAccessException
Execute a query for persistent instances.

Returns the results as an Iterator. Entities returned are initialized on demand. See the Hibernate API documentation for details.

Parameters:
queryString - a query expressed in Hibernate's query language
Returns:
an Iterator containing 0 or more persistent instances
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.createQuery(java.lang.String), Query.iterate()

iterate

Iterator iterate(String queryString,
                 Object value)
                 throws DataAccessException
Execute a query for persistent instances, binding one value to a "?" parameter in the query string.

Returns the results as an Iterator. Entities returned are initialized on demand. See the Hibernate API documentation for details.

Parameters:
queryString - a query expressed in Hibernate's query language
value - the value of the parameter
Returns:
an Iterator containing 0 or more persistent instances
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.createQuery(java.lang.String), Query.iterate()

iterate

Iterator iterate(String queryString,
                 Object... values)
                 throws DataAccessException
Execute a query for persistent instances, binding a number of values to "?" parameters in the query string.

Returns the results as an Iterator. Entities returned are initialized on demand. See the Hibernate API documentation for details.

Parameters:
queryString - a query expressed in Hibernate's query language
values - the values of the parameters
Returns:
an Iterator containing 0 or more persistent instances
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.createQuery(java.lang.String), Query.iterate()

closeIterator

void closeIterator(Iterator it)
                   throws DataAccessException
Immediately close an Iterator created by any of the various iterate(..) operations, instead of waiting until the session is closed or disconnected.

Parameters:
it - the Iterator to close
Throws:
DataAccessException - if the Iterator could not be closed
See Also:
Hibernate.close(java.util.Iterator)

bulkUpdate

int bulkUpdate(String queryString)
               throws DataAccessException
Update/delete all objects according to the given query.

Parameters:
queryString - an update/delete query expressed in Hibernate's query language
Returns:
the number of instances updated/deleted
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.createQuery(java.lang.String), Query.executeUpdate()

bulkUpdate

int bulkUpdate(String queryString,
               Object value)
               throws DataAccessException
Update/delete all objects according to the given query, binding one value to a "?" parameter in the query string.

Parameters:
queryString - an update/delete query expressed in Hibernate's query language
value - the value of the parameter
Returns:
the number of instances updated/deleted
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.createQuery(java.lang.String), Query.executeUpdate()

bulkUpdate

int bulkUpdate(String queryString,
               Object... values)
               throws DataAccessException
Update/delete all objects according to the given query, binding a number of values to "?" parameters in the query string.

Parameters:
queryString - an update/delete query expressed in Hibernate's query language
values - the values of the parameters
Returns:
the number of instances updated/deleted
Throws:
DataAccessException - in case of Hibernate errors
See Also:
Session.createQuery(java.lang.String), Query.executeUpdate()
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