org.springframework.orm.toplink
Interface TopLinkOperations

All Known Implementing Classes:

TopLinkTemplate

public interface TopLinkOperations

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

Provides TopLinkTemplate's data access methods that mirror various TopLink Session/UnitOfWork methods. See the TopLink javadocs for details on those methods.

Since:

1.2

Author:

Juergen Hoeller

Method Summary

Object	copy(Object entity) Create a detached copy of the given entity object, using TopLink's default ObjectCopyingPolicy.
Object	copy(Object entity, oracle.toplink.sessions.ObjectCopyingPolicy copyingPolicy) Create a detached copy of the given entity object.
List	copyAll(Collection entities) Create detached copies of all given entity objects, using TopLink's default ObjectCopyingPolicy.
List	copyAll(Collection entities, oracle.toplink.sessions.ObjectCopyingPolicy copyingPolicy) Create detached copies of all given entity objects.
Object	deepMerge(Object entity) Reassociate the given entity copy with the current UnitOfWork, using deep merging of all contained entities.
void	delete(Object entity) Delete the given entity.
void	deleteAll(Collection entities) Delete all given entities.
Object	execute(TopLinkCallback action) Execute the action specified by the given action object within a TopLink Session.
List	executeFind(TopLinkCallback action) Execute the specified action assuming that the result object is a Collection.
Object	executeNamedQuery(Class entityClass, String queryName) Execute a given named query with the given arguments.
Object	executeNamedQuery(Class entityClass, String queryName, boolean enforceReadOnly) Execute a given named query with the given arguments.
Object	executeNamedQuery(Class entityClass, String queryName, Object[] args) Execute a given named query with the given arguments.
Object	executeNamedQuery(Class entityClass, String queryName, Object[] args, boolean enforceReadOnly) Execute a given named query with the given arguments.
Object	executeQuery(oracle.toplink.queryframework.DatabaseQuery query) Execute the given query object with the given arguments.
Object	executeQuery(oracle.toplink.queryframework.DatabaseQuery query, boolean enforceReadOnly) Execute the given query object with the given arguments.
Object	executeQuery(oracle.toplink.queryframework.DatabaseQuery query, Object[] args) Execute the given query object with the given arguments.
Object	executeQuery(oracle.toplink.queryframework.DatabaseQuery query, Object[] args, boolean enforceReadOnly) Execute the given query object with the given arguments.
Object	merge(Object entity) Reassociate the given entity copy with the current UnitOfWork, using simple merging.
Object	mergeWithReferences(Object entity) Reassociate the given entity copy with the current UnitOfWork, using merging with all references from this clone.
Object	read(Class entityClass, oracle.toplink.queryframework.Call call) Read an entity instance of the given class, as returned by the given call.
Object	read(Class entityClass, oracle.toplink.queryframework.Call call, boolean enforceReadOnly) Read an entity instance of the given class, as returned by the given call.
Object	read(Class entityClass, oracle.toplink.expressions.Expression expression) Read an entity instance of the given class that matches the given expression.
Object	read(Class entityClass, oracle.toplink.expressions.Expression expression, boolean enforceReadOnly) Read an entity instance of the given class that matches the given expression.
List	readAll(Class entityClass) Read all entity instances of the given class.
List	readAll(Class entityClass, boolean enforceReadOnly) Read all entity instances of the given class.
List	readAll(Class entityClass, oracle.toplink.queryframework.Call call) Read all entity instances of the given class, as returned by the given call.
List	readAll(Class entityClass, oracle.toplink.queryframework.Call call, boolean enforceReadOnly) Read all entity instances of the given class, as returned by the given call.
List	readAll(Class entityClass, oracle.toplink.expressions.Expression expression) Read all entity instances of the given class that match the given expression.
List	readAll(Class entityClass, oracle.toplink.expressions.Expression expression, boolean enforceReadOnly) Read all entity instances of the given class that match the given expression.
Object	readAndCopy(Class entityClass, Object id) Read the entity instance of the given class with the given id, throwing an exception if not found.
Object	readAndCopy(Class entityClass, Object[] keys) Read the entity instance of the given class with the given composite id, throwing an exception if not found.
Object	readAndCopy(Class entityClass, Object[] keys, boolean enforceReadOnly) Read the entity instance of the given class with the given composite id, throwing an exception if not found.
Object	readAndCopy(Class entityClass, Object id, boolean enforceReadOnly) Read the entity instance of the given class with the given id, throwing an exception if not found.
Object	readById(Class entityClass, Object id) Read the entity instance of the given class with the given id, throwing an exception if not found.
Object	readById(Class entityClass, Object[] keys) Read the entity instance of the given class with the given composite id, throwing an exception if not found.
Object	readById(Class entityClass, Object[] keys, boolean enforceReadOnly) Read the entity instance of the given class with the given composite id, throwing an exception if not found.
Object	readById(Class entityClass, Object id, boolean enforceReadOnly) Read the entity instance of the given class with the given id, throwing an exception if not found.
Object	refresh(Object entity) Refresh the given entity object, returning the refreshed object.
Object	refresh(Object entity, boolean enforceReadOnly) Refresh the given entity object, returning the refreshed object.
List	refreshAll(Collection entities) Refresh the given entity objects, returning the corresponding refreshed objects.
List	refreshAll(Collection entities, boolean enforceReadOnly) Refresh the given entity objects, returning the corresponding refreshed objects.
Object	register(Object entity) Register the given (new or existing) entity with the current UnitOfWork.
List	registerAll(Collection entities) Register all given entities with the current UnitOfWork.
Object	registerExisting(Object entity) Register the given existing entity with the current UnitOfWork.
void	registerNew(Object entity) Register the given new entity with the current UnitOfWork.
Object	shallowMerge(Object entity) Reassociate the given entity copy with the current UnitOfWork, using shallow merging of the entity instance.

Method Detail

execute

Object execute(TopLinkCallback action)
               throws DataAccessException

Execute the action specified by the given action object within a TopLink Session. Application exceptions thrown by the action object get propagated to the caller (can only be unchecked). TopLink exceptions are transformed into appropriate DAO ones. Allows for returning a result object, i.e. 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 TopLinkTransactionManager.

Parameters:

action - callback object that specifies the TopLink action

Returns:

a result object returned by the action, or null

Throws:

DataAccessException - in case of TopLink errors

See Also:

TopLinkTransactionManager, org.springframework.dao, org.springframework.transaction, Session

executeFind

List executeFind(TopLinkCallback action)
                 throws DataAccessException

Execute the specified action assuming that the result object is a Collection. This is a convenience method for executing TopLink queries within an action.

Parameters:

action - callback object that specifies the TopLink action

Returns:

a Collection result returned by the action, or null

Throws:

DataAccessException - in case of TopLink errors

executeNamedQuery

Object executeNamedQuery(Class entityClass,
                         String queryName)
                         throws DataAccessException

Execute a given named query with the given arguments.

Retrieves read-write objects from the TopLink UnitOfWork in case of a non-read-only transaction, and read-only objects else.

Parameters:

entityClass - the entity class that has the named query descriptor

queryName - the name of the query

Returns:

the result object or list of result objects for the query (can be cast to the entity class or Collection/List, respectively)

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.executeQuery(String, Class)

executeNamedQuery

Object executeNamedQuery(Class entityClass,
                         String queryName,
                         boolean enforceReadOnly)
                         throws DataAccessException

Execute a given named query with the given arguments.

Parameters:

entityClass - the entity class that has the named query descriptor

queryName - the name of the query

enforceReadOnly - whether to always retrieve read-only objects from the plain TopLink Session (else, read-write objects will be retrieved from the TopLink UnitOfWork in case of a non-read-only transaction)

Returns:

the result object or list of result objects for the query (can be cast to the entity class or Collection/List, respectively)

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.executeQuery(String, Class)

executeNamedQuery

Object executeNamedQuery(Class entityClass,
                         String queryName,
                         Object[] args)
                         throws DataAccessException

Execute a given named query with the given arguments.

Retrieves read-write objects from the TopLink UnitOfWork in case of a non-read-only transaction, and read-only objects else.

Parameters:

entityClass - the entity class that has the named query descriptor

queryName - the name of the query

args - the arguments for the query (can be null)

Returns:

the result object or list of result objects for the query (can be cast to the entity class or Collection/List, respectively)

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.executeQuery(String, Class, java.util.Vector)

executeNamedQuery

Object executeNamedQuery(Class entityClass,
                         String queryName,
                         Object[] args,
                         boolean enforceReadOnly)
                         throws DataAccessException

Execute a given named query with the given arguments.

Parameters:

entityClass - the entity class that has the named query descriptor

queryName - the name of the query

args - the arguments for the query (can be null)

enforceReadOnly - whether to always retrieve read-only objects from the plain TopLink Session (else, read-write objects will be retrieved from the TopLink UnitOfWork in case of a non-read-only transaction)

Returns:

the result object or list of result objects for the query (can be cast to the entity class or Collection/List, respectively)

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.executeQuery(String, Class, java.util.Vector)

executeQuery

Object executeQuery(oracle.toplink.queryframework.DatabaseQuery query)
                    throws DataAccessException

Execute the given query object with the given arguments.

Retrieves read-write objects from the TopLink UnitOfWork in case of a non-read-only transaction, and read-only objects else.

Parameters:

query - the query object to execute (for example, a ReadObjectQuery or ReadAllQuery instance)

Returns:

the result object or list of result objects for the query (can be cast to the entity class or Collection/List, respectively)

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.executeQuery(oracle.toplink.queryframework.DatabaseQuery)

executeQuery

Object executeQuery(oracle.toplink.queryframework.DatabaseQuery query,
                    boolean enforceReadOnly)
                    throws DataAccessException

Execute the given query object with the given arguments.

Parameters:

query - the query object to execute (for example, a ReadObjectQuery or ReadAllQuery instance)

enforceReadOnly - whether to always retrieve read-only objects from the plain TopLink Session (else, read-write objects will be retrieved from the TopLink UnitOfWork in case of a non-read-only transaction)

Returns:

the result object or list of result objects for the query (can be cast to the entity class or Collection/List, respectively)

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.executeQuery(oracle.toplink.queryframework.DatabaseQuery)

executeQuery

Object executeQuery(oracle.toplink.queryframework.DatabaseQuery query,
                    Object[] args)
                    throws DataAccessException

Execute the given query object with the given arguments.

Retrieves read-write objects from the TopLink UnitOfWork in case of a non-read-only transaction, and read-only objects else.

Parameters:

query - the query object to execute (for example, a ReadObjectQuery or ReadAllQuery instance)

args - the arguments for the query (can be null)

Returns:

the result object or list of result objects for the query (can be cast to the entity class or Collection/List, respectively)

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.executeQuery(oracle.toplink.queryframework.DatabaseQuery, java.util.Vector)

executeQuery

Object executeQuery(oracle.toplink.queryframework.DatabaseQuery query,
                    Object[] args,
                    boolean enforceReadOnly)
                    throws DataAccessException

Execute the given query object with the given arguments.

Parameters:

query - the query object to execute (for example, a ReadObjectQuery or ReadAllQuery instance)

args - the arguments for the query (can be null)

enforceReadOnly - whether to always retrieve read-only objects from the plain TopLink Session (else, read-write objects will be retrieved from the TopLink UnitOfWork in case of a non-read-only transaction)

Returns:

the result object or list of result objects for the query (can be cast to the entity class or Collection/List, respectively)

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.executeQuery(oracle.toplink.queryframework.DatabaseQuery, java.util.Vector)

readAll

List readAll(Class entityClass)
             throws DataAccessException

Read all entity instances of the given class.

Retrieves read-write objects from the TopLink UnitOfWork in case of a non-read-only transaction, and read-only objects else.

Parameters:

entityClass - the entity class

Returns:

the list of entity instances

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.readAllObjects(Class)

readAll

List readAll(Class entityClass,
             boolean enforceReadOnly)
             throws DataAccessException

Read all entity instances of the given class.

Parameters:

entityClass - the entity class

enforceReadOnly - whether to always retrieve read-only objects from the plain TopLink Session (else, read-write objects will be retrieved from the TopLink UnitOfWork in case of a non-read-only transaction)

Returns:

the list of entity instances

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.readAllObjects(Class)

readAll

List readAll(Class entityClass,
             oracle.toplink.expressions.Expression expression)
             throws DataAccessException

Read all entity instances of the given class that match the given expression.

Retrieves read-write objects from the TopLink UnitOfWork in case of a non-read-only transaction, and read-only objects else.

Parameters:

entityClass - the entity class

expression - the TopLink expression to match, usually built through the TopLink ExpressionBuilder

Returns:

the list of matching entity instances

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.readAllObjects(Class, oracle.toplink.expressions.Expression), ExpressionBuilder

readAll

List readAll(Class entityClass,
             oracle.toplink.expressions.Expression expression,
             boolean enforceReadOnly)
             throws DataAccessException

Read all entity instances of the given class that match the given expression.

Parameters:

entityClass - the entity class

expression - the TopLink expression to match, usually built through the TopLink ExpressionBuilder

enforceReadOnly - whether to always retrieve read-only objects from the plain TopLink Session (else, read-write objects will be retrieved from the TopLink UnitOfWork in case of a non-read-only transaction)

Returns:

the list of matching entity instances

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.readAllObjects(Class, oracle.toplink.expressions.Expression), ExpressionBuilder

readAll

List readAll(Class entityClass,
             oracle.toplink.queryframework.Call call)
             throws DataAccessException

Read all entity instances of the given class, as returned by the given call.

Retrieves read-write objects from the TopLink UnitOfWork in case of a non-read-only transaction, and read-only objects else.

Parameters:

entityClass - the entity class

call - the TopLink Call object to apply (either a SQLCall or an EJBQLCall)

Returns:

the list of matching entity instances

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.readAllObjects(Class, oracle.toplink.queryframework.Call), oracle.toplink.queryframework.SQLCall, oracle.toplink.queryframework.EJBQLCall

readAll

List readAll(Class entityClass,
             oracle.toplink.queryframework.Call call,
             boolean enforceReadOnly)
             throws DataAccessException

Read all entity instances of the given class, as returned by the given call.

Parameters:

entityClass - the entity class

call - the TopLink Call object to apply (either a SQLCall or an EJBQLCall)

enforceReadOnly - whether to always retrieve read-only objects from the plain TopLink Session (else, read-write objects will be retrieved from the TopLink UnitOfWork in case of a non-read-only transaction)

Returns:

the list of matching entity instances

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.readAllObjects(Class, oracle.toplink.expressions.Expression), oracle.toplink.queryframework.SQLCall, oracle.toplink.queryframework.EJBQLCall

read

Object read(Class entityClass,
            oracle.toplink.expressions.Expression expression)
            throws DataAccessException

Read an entity instance of the given class that matches the given expression.

Retrieves read-write objects from the TopLink UnitOfWork in case of a non-read-only transaction, and read-only objects else.

Parameters:

entityClass - the entity class

expression - the TopLink expression to match, usually built through the TopLink ExpressionBuilder

Returns:

the matching entity instance, or null if none found

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.readAllObjects(Class, oracle.toplink.expressions.Expression), ExpressionBuilder

read

Object read(Class entityClass,
            oracle.toplink.expressions.Expression expression,
            boolean enforceReadOnly)
            throws DataAccessException

Read an entity instance of the given class that matches the given expression.

Parameters:

entityClass - the entity class

expression - the TopLink expression to match, usually built through the TopLink ExpressionBuilder

enforceReadOnly - whether to always retrieve read-only objects from the plain TopLink Session (else, read-write objects will be retrieved from the TopLink UnitOfWork in case of a non-read-only transaction)

Returns:

a matching entity instance, or null if none found

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.readAllObjects(Class, oracle.toplink.expressions.Expression), ExpressionBuilder

read

Object read(Class entityClass,
            oracle.toplink.queryframework.Call call)
            throws DataAccessException

Read an entity instance of the given class, as returned by the given call.

Retrieves read-write objects from the TopLink UnitOfWork in case of a non-read-only transaction, and read-only objects else.

Parameters:

entityClass - the entity class

call - the TopLink Call object to apply (either a SQLCall or an EJBQLCall)

Returns:

a matching entity instance, or null if none found

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.readAllObjects(Class, oracle.toplink.queryframework.Call), oracle.toplink.queryframework.SQLCall, oracle.toplink.queryframework.EJBQLCall

read

Object read(Class entityClass,
            oracle.toplink.queryframework.Call call,
            boolean enforceReadOnly)
            throws DataAccessException

Read an entity instance of the given class, as returned by the given call.

Parameters:

entityClass - the entity class

call - the TopLink Call object to apply (either a SQLCall or an EJBQLCall)

enforceReadOnly - whether to always retrieve read-only objects from the plain TopLink Session (else, read-write objects will be retrieved from the TopLink UnitOfWork in case of a non-read-only transaction)

Returns:

a matching entity instance, or null if none found

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.readAllObjects(Class, oracle.toplink.expressions.Expression), oracle.toplink.queryframework.SQLCall, oracle.toplink.queryframework.EJBQLCall

readById

Object readById(Class entityClass,
                Object id)
                throws DataAccessException

Read the entity instance of the given class with the given id, throwing an exception if not found.

Retrieves read-write objects from the TopLink UnitOfWork in case of a non-read-only transaction, and read-only objects else.

Parameters:

entityClass - the entity class

id - the id of the desired object

Returns:

the entity instance

Throws:

ObjectRetrievalFailureException - if not found

DataAccessException - in case of TopLink errors

See Also:

ReadObjectQuery.setSelectionKey(java.util.Vector)

readById

Object readById(Class entityClass,
                Object id,
                boolean enforceReadOnly)
                throws DataAccessException

Read the entity instance of the given class with the given id, throwing an exception if not found.

Parameters:

entityClass - the entity class

id - the id of the desired object

enforceReadOnly - whether to always retrieve read-only objects from the plain TopLink Session (else, read-write objects will be retrieved from the TopLink UnitOfWork in case of a non-read-only transaction)

Returns:

the entity instance

Throws:

ObjectRetrievalFailureException - if not found

DataAccessException - in case of TopLink errors

See Also:

ReadObjectQuery.setSelectionKey(java.util.Vector)

readById

Object readById(Class entityClass,
                Object[] keys)
                throws DataAccessException

Read the entity instance of the given class with the given composite id, throwing an exception if not found.

Retrieves read-write objects from the TopLink UnitOfWork in case of a non-read-only transaction, and read-only objects else.

Parameters:

entityClass - the entity class

keys - the composite id elements of the desired object

Returns:

the entity instance

Throws:

ObjectRetrievalFailureException - if not found

DataAccessException - in case of TopLink errors

See Also:

ReadObjectQuery.setSelectionKey(java.util.Vector)

readById

Object readById(Class entityClass,
                Object[] keys,
                boolean enforceReadOnly)
                throws DataAccessException

Read the entity instance of the given class with the given composite id, throwing an exception if not found.

Parameters:

entityClass - the entity class

keys - the composite id elements of the desired object

enforceReadOnly - whether to always retrieve read-only objects from the plain TopLink Session (else, read-write objects will be retrieved from the TopLink UnitOfWork in case of a non-read-only transaction)

Returns:

the entity instance

Throws:

ObjectRetrievalFailureException - if not found

DataAccessException - in case of TopLink errors

See Also:

ReadObjectQuery.setSelectionKey(java.util.Vector)

readAndCopy

Object readAndCopy(Class entityClass,
                   Object id)
                   throws DataAccessException

Read the entity instance of the given class with the given id, throwing an exception if not found. A detached copy of the entity object will be returned, allowing for modifications outside the current transaction, with the changes to be merged into a later transaction.

Retrieves read-write objects from the TopLink UnitOfWork in case of a non-read-only transaction, and read-only objects else.

Parameters:

entityClass - the entity class

id - the id of the desired object

Returns:

a copy of the entity instance

Throws:

ObjectRetrievalFailureException - if not found

DataAccessException - in case of TopLink errors

See Also:

ReadObjectQuery.setSelectionKey(java.util.Vector), Session.copyObject(Object)

readAndCopy

Object readAndCopy(Class entityClass,
                   Object id,
                   boolean enforceReadOnly)
                   throws DataAccessException

Read the entity instance of the given class with the given id, throwing an exception if not found. A detached copy of the entity object will be returned, allowing for modifications outside the current transaction, with the changes to be merged into a later transaction.

Parameters:

entityClass - the entity class

id - the id of the desired object

enforceReadOnly - whether to always retrieve read-only objects from the plain TopLink Session (else, read-write objects will be retrieved from the TopLink UnitOfWork in case of a non-read-only transaction)

Returns:

a copy of the entity instance

Throws:

ObjectRetrievalFailureException - if not found

DataAccessException - in case of TopLink errors

See Also:

ReadObjectQuery.setSelectionKey(java.util.Vector), Session.copyObject(Object)

readAndCopy

Object readAndCopy(Class entityClass,
                   Object[] keys)
                   throws DataAccessException

Read the entity instance of the given class with the given composite id, throwing an exception if not found. A detached copy of the entity object will be returned, allowing for modifications outside the current transaction, with the changes to be merged into a later transaction.

Retrieves read-write objects from the TopLink UnitOfWork in case of a non-read-only transaction, and read-only objects else.

Parameters:

entityClass - the entity class

keys - the composite id elements of the desired object

Returns:

a copy of the entity instance

Throws:

ObjectRetrievalFailureException - if not found

DataAccessException - in case of TopLink errors

See Also:

ReadObjectQuery.setSelectionKey(java.util.Vector), Session.copyObject(Object)

readAndCopy

Object readAndCopy(Class entityClass,
                   Object[] keys,
                   boolean enforceReadOnly)
                   throws DataAccessException

Read the entity instance of the given class with the given composite id, throwing an exception if not found. A detached copy of the entity object will be returned, allowing for modifications outside the current transaction, with the changes to be merged into a later transaction.

Parameters:

entityClass - the entity class

keys - the composite id elements of the desired object

enforceReadOnly - whether to always retrieve read-only objects from the plain TopLink Session (else, read-write objects will be retrieved from the TopLink UnitOfWork in case of a non-read-only transaction)

Returns:

a copy of the entity instance

Throws:

ObjectRetrievalFailureException - if not found

DataAccessException - in case of TopLink errors

See Also:

ReadObjectQuery.setSelectionKey(java.util.Vector), Session.copyObject(Object)

copy

Object copy(Object entity)
            throws DataAccessException

Create a detached copy of the given entity object, using TopLink's default ObjectCopyingPolicy.

Parameters:

entity - the entity object to copy

Returns:

the copy of the entity object

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.copyObject(Object)

copy

Object copy(Object entity,
            oracle.toplink.sessions.ObjectCopyingPolicy copyingPolicy)
            throws DataAccessException

Create a detached copy of the given entity object.

Parameters:

entity - the entity object to copy

copyingPolicy - the TopLink ObjectCopyingPolicy to apply

Returns:

the copy of the entity object

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.copyObject(Object, oracle.toplink.sessions.ObjectCopyingPolicy)

copyAll

List copyAll(Collection entities)
             throws DataAccessException

Create detached copies of all given entity objects, using TopLink's default ObjectCopyingPolicy.

Parameters:

entities - the entity objects to copy

Returns:

the copies of the entity objects

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.copyObject(Object)

copyAll

List copyAll(Collection entities,
             oracle.toplink.sessions.ObjectCopyingPolicy copyingPolicy)
             throws DataAccessException

Create detached copies of all given entity objects.

Parameters:

entities - the entity objects to copy

copyingPolicy - the TopLink ObjectCopyingPolicy to apply

Returns:

the copies of the entity objects

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.copyObject(Object)

refresh

Object refresh(Object entity)
               throws DataAccessException

Refresh the given entity object, returning the refreshed object.

The returned object will only be different from the passed-in object if the passed-in object is not the currently registered version of the corresponding entity.

Retrieves read-write objects from the TopLink UnitOfWork in case of a non-read-only transaction, and read-only objects else.

Parameters:

entity - the entity object to refresh

Returns:

the refreshed version of the entity object

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.refreshObject(Object)

refresh

Object refresh(Object entity,
               boolean enforceReadOnly)
               throws DataAccessException

Refresh the given entity object, returning the refreshed object.

The returned object will only be different from the passed-in object if the passed-in object is not the currently registered version of the corresponding entity.

Retrieves read-write objects from the TopLink UnitOfWork in case of a non-read-only transaction, and read-only objects else.

Parameters:

entity - the entity object to refresh

enforceReadOnly - whether to always retrieve read-only objects from the plain TopLink Session (else, read-write objects will be retrieved from the TopLink UnitOfWork in case of a non-read-only transaction)

Returns:

the refreshed version of the entity object

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.refreshObject(Object)

refreshAll

List refreshAll(Collection entities)
                throws DataAccessException

Refresh the given entity objects, returning the corresponding refreshed objects.

A returned object will only be different from the corresponding passed-in object if the passed-in object is not the currently registered version of the corresponding entity.

Retrieves read-write objects from the TopLink UnitOfWork in case of a non-read-only transaction, and read-only objects else.

Parameters:

entities - the entity objects to refresh

Returns:

the refreshed versions of the entity objects

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.refreshObject(Object)

refreshAll

List refreshAll(Collection entities,
                boolean enforceReadOnly)
                throws DataAccessException

Refresh the given entity objects, returning the corresponding refreshed objects.

A returned object will only be different from the corresponding passed-in object if the passed-in object is not the currently registered version of the corresponding entity.

Parameters:

entities - the entity objects to refresh

enforceReadOnly - whether to always retrieve read-only objects from the plain TopLink Session (else, read-write objects will be retrieved from the TopLink UnitOfWork in case of a non-read-only transaction)

Returns:

the refreshed versions of the entity objects

Throws:

DataAccessException - in case of TopLink errors

See Also:

Session.refreshObject(Object)

register

Object register(Object entity)

Register the given (new or existing) entity with the current UnitOfWork.

The entity will be checked for existence, according to TopLink's configured existence checking policy. To avoid the (potentially costly) existence check, consider using the specific registerNew or registerExisting method. Do not edit the passed-in object any further afterwards.

Parameters:

entity - the entity to register

Returns:

the registered clone of the original object, which needs to be used for further editing

Throws:

DataAccessException - in case of TopLink errors

See Also:

UnitOfWork.registerObject(Object), registerNew(Object), registerExisting(Object)

registerAll

List registerAll(Collection entities)

Register all given entities with the current UnitOfWork. Do not edit the passed-in objects any further afterwards.

Parameters:

entities - the entities to register

Returns:

the registered clones of the original objects, which need to be used for further editing

Throws:

DataAccessException - in case of TopLink errors

See Also:

UnitOfWork.registerAllObjects(java.util.Collection)

registerNew

void registerNew(Object entity)

Register the given new entity with the current UnitOfWork. The passed-in object can be edited further afterwards.

Parameters:

entity - the new entity to register

Throws:

DataAccessException - in case of TopLink errors

See Also:

UnitOfWork.registerNewObject(Object)

registerExisting

Object registerExisting(Object entity)

Register the given existing entity with the current UnitOfWork. Do not edit the passed-in object any further afterwards.

Parameters:

entity - the existing entity to register

Returns:

the registered clone of the original object, which needs to be used for further editing

Throws:

DataAccessException - in case of TopLink errors

See Also:

UnitOfWork.registerExistingObject(Object)

merge

Object merge(Object entity)
             throws DataAccessException

Reassociate the given entity copy with the current UnitOfWork, using simple merging.

The given object will not be reassociated itself: instead, the state will be copied onto the persistent object with the same identifier. In case of a new entity, merge will copy to a registered object as well, but will also update the identifier of the passed-in object.

Parameters:

entity - the updated copy to merge

Returns:

the updated, registered persistent instance

Throws:

DataAccessException - in case of TopLink errors

See Also:

UnitOfWork.mergeClone(Object)

deepMerge

Object deepMerge(Object entity)
                 throws DataAccessException

Reassociate the given entity copy with the current UnitOfWork, using deep merging of all contained entities.

The given object will not be reassociated itself: instead, the state will be copied onto the persistent object with the same identifier. In case of a new entity, merge will register a copy as well, but will also update the identifier of the passed-in object.

Parameters:

entity - the updated copy to merge

Returns:

the updated, registered persistent instance

Throws:

DataAccessException - in case of TopLink errors

See Also:

UnitOfWork.deepMergeClone(Object)

shallowMerge

Object shallowMerge(Object entity)
                    throws DataAccessException

Reassociate the given entity copy with the current UnitOfWork, using shallow merging of the entity instance.

The given object will not be reassociated itself: instead, the state will be copied onto the persistent object with the same identifier. In case of a new entity, merge will register a copy as well, but will also update the identifier of the passed-in object.

Parameters:

entity - the updated copy to merge

Returns:

the updated, registered persistent instance

Throws:

DataAccessException - in case of TopLink errors

See Also:

UnitOfWork.shallowMergeClone(Object)

mergeWithReferences

Object mergeWithReferences(Object entity)
                           throws DataAccessException

Reassociate the given entity copy with the current UnitOfWork, using merging with all references from this clone.

The given object will not be reassociated itself: instead, the state will be copied onto the persistent object with the same identifier. In case of a new entity, merge will register a copy as well, but will also update the identifier of the passed-in object.

Parameters:

entity - the updated copy to merge

Returns:

the updated, registered persistent instance

Throws:

DataAccessException - in case of TopLink errors

See Also:

UnitOfWork.mergeCloneWithReferences(Object)

delete

void delete(Object entity)
            throws DataAccessException

Delete the given entity.

Parameters:

entity - the entity to delete

Throws:

DataAccessException - in case of TopLink errors

See Also:

UnitOfWork.deleteObject(Object)

deleteAll

void deleteAll(Collection entities)
               throws DataAccessException

Delete all given entities.

Parameters:

entities - the entities to delete

Throws:

DataAccessException - in case of TopLink errors

See Also:

UnitOfWork.deleteAllObjects(java.util.Collection)