org.apache.ojb.odmg
Class ImplementationImpl

java.lang.Object
  org.apache.ojb.odmg.ImplementationImpl

All Implemented Interfaces:

Implementation, ImplementationExt

Direct Known Subclasses:

ImplementationJTAImpl

public class ImplementationImpl

extends java.lang.Object

implements ImplementationExt

Default implementation of the Implementation interface.

Version:

$Id: ImplementationImpl.java,v 1.1.2.7 2005/04/03 02:38:45 arminw Exp $

Author:

Thomas Mahler, Matthew Baird, Armin Waibel

Method Summary

Transaction	currentTransaction() Get the current Transaction for the thread.
org.apache.ojb.broker.util.configuration.Configurator	getConfigurator() Gets the configurator.
PBKey	getCurrentPBKey()
Database	getDatabase(java.lang.Object obj) Returns the current used database or null.
java.lang.String	getObjectId(java.lang.Object obj) Get a String representation of the object's identifier.
java.lang.Class	getOqlCollectionClass() The used collection type class returned by OQL queries.
OJBTxManager	getTxManager()
boolean	hasOpenTransaction()
boolean	isImpliciteWriteLocks() Is true when implicite write locks are enabled.
DArray	newDArray() Create a new DArray object.
Database	newDatabase() Create a new Database object.
DBag	newDBag() Create a new DBag object.
DList	newDList() Create a new DList object.
DMap	newDMap() Create a new DMap object.
DSet	newDSet() Create a new DSet object.
EnhancedOQLQuery	newOQLQuery() Create a new OQLQuery object.
Transaction	newTransaction() Create a Transaction object and associate it with the current thread.
void	setConfigurator(org.apache.ojb.broker.util.configuration.Configurator configurator) Sets the configurator.
void	setImpliciteWriteLocks(boolean impliciteWriteLocks) If the OJB implicit locking feature (see TransactionExt.setImplicitLocking(boolean)) is enabled, this define the lock type of all implicit locked objects.
void	setImplicitLocking(boolean value) Deprecated. use TransactionExt.setImplicitLocking(boolean) instead.
void	setOqlCollectionClass(java.lang.Class oqlCollectionClass) Set the used collection type class returned by OQL queries.

Methods inherited from class java.lang.Object

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

Method Detail

getTxManager

public OJBTxManager getTxManager()

getCurrentPBKey

public PBKey getCurrentPBKey()

getConfigurator

public org.apache.ojb.broker.util.configuration.Configurator getConfigurator()

Gets the configurator.

Returns:

Returns a Configurator

setConfigurator

public void setConfigurator(org.apache.ojb.broker.util.configuration.Configurator configurator)

Sets the configurator.

Parameters:

configurator - The configurator to set

newTransaction

public Transaction newTransaction()

Create a Transaction object and associate it with the current thread.

Specified by:

newTransaction in interface Implementation

Returns:

The newly created Transaction instance.

See Also:

Transaction

currentTransaction

public Transaction currentTransaction()

Get the current Transaction for the thread.

Specified by:

currentTransaction in interface Implementation

Returns:

The current Transaction object or null if there is none.

See Also:

Transaction

hasOpenTransaction

public boolean hasOpenTransaction()

newDatabase

public Database newDatabase()

Create a new Database object.

Specified by:

newDatabase in interface Implementation

Returns:

The new Database object.

See Also:

Database

newOQLQuery

public EnhancedOQLQuery newOQLQuery()

Create a new OQLQuery object.

Specified by:

newOQLQuery in interface Implementation

Returns:

The new OQLQuery object.

See Also:

OQLQuery

newDList

public DList newDList()

Create a new DList object.

Specified by:

newDList in interface Implementation

Returns:

The new DList object.

See Also:

DList

newDBag

public DBag newDBag()

Create a new DBag object.

Specified by:

newDBag in interface Implementation

Returns:

The new DBag object.

See Also:

DBag

newDSet

public DSet newDSet()

Create a new DSet object.

Specified by:

newDSet in interface Implementation

Returns:

The new DSet object.

See Also:

DSet

newDArray

public DArray newDArray()

Create a new DArray object.

Specified by:

newDArray in interface Implementation

Returns:

The new DArray object.

See Also:

DArray

newDMap

public DMap newDMap()

Create a new DMap object.

Specified by:

newDMap in interface Implementation

Returns:

The new DMap object.

See Also:

DMap

getObjectId

public java.lang.String getObjectId(java.lang.Object obj)

Get a String representation of the object's identifier. OJB returns the serialized Identity of the object.

Specified by:

getObjectId in interface Implementation

Parameters:

obj - The object whose identifier is being accessed.

Returns:

The object's identifier in the form of a String

getDatabase

public Database getDatabase(java.lang.Object obj)

Returns the current used database or null.

Specified by:

getDatabase in interface Implementation

Parameters:

obj - The object.

Returns:

The Database that contains the object.

setImplicitLocking

public void setImplicitLocking(boolean value)

Deprecated. use TransactionExt.setImplicitLocking(boolean) instead.

This method can be used to activate or deactivate the implicit locking mechanism for the current transaction. turning of implicit locking may improve performance but requires additional care to make sure all changed objects are properly registered to the transaction.

Parameters:

value - if set to true implicit locking is enabled, if false, implicit locking is disabled.

getOqlCollectionClass

public java.lang.Class getOqlCollectionClass()

Description copied from interface: ImplementationExt

The used collection type class returned by OQL queries.

Specified by:

getOqlCollectionClass in interface ImplementationExt

Returns:

The collection class type

See Also:

ImplementationExt.getOqlCollectionClass()

setOqlCollectionClass

public void setOqlCollectionClass(java.lang.Class oqlCollectionClass)

Description copied from interface: ImplementationExt

Set the used collection type class returned by OQL queries.

NOTE: Each specified class must implement interface ManageableCollection to work proper with OJB.

Specified by:

setOqlCollectionClass in interface ImplementationExt

Parameters:

oqlCollectionClass - The collection class used in OQL queries.

See Also:

ImplementationExt.setOqlCollectionClass(Class)

setImpliciteWriteLocks

public void setImpliciteWriteLocks(boolean impliciteWriteLocks)

Description copied from interface: ImplementationExt

If the OJB implicit locking feature (see TransactionExt.setImplicitLocking(boolean)) is enabled, this define the lock type of all implicit locked objects.

If set to true, acquiring a write-lock on a given object x implies write locks on all implicit locked objects.
If set to false, in any case implicit read-locks are acquired. Acquiring a read- or write lock on x thus allways results in implicit read-locks on all associated objects.

Specified by:

setImpliciteWriteLocks in interface ImplementationExt

Parameters:

impliciteWriteLocks - If true implicit write locks will enabled.

See Also:

ImplementationExt.setImpliciteWriteLocks(boolean)

isImpliciteWriteLocks

public boolean isImpliciteWriteLocks()

Description copied from interface: ImplementationExt

Is true when implicite write locks are enabled.

Specified by:

isImpliciteWriteLocks in interface ImplementationExt

Returns:

true when implicit write locks are enabled.

See Also:

ImplementationExt.isImpliciteWriteLocks()