com.sap.ip.me.api.persist.core
Class PersistenceRuntime

java.lang.Object
  com.sap.ip.me.api.persist.core.PersistenceRuntime

public abstract class PersistenceRuntime
extends java.lang.Object

A PersistenceRuntime instance provides access to PersistenceManager holds all registered PackagePersistenceMaster instances.

PersistenceRuntime does not consider ConversationId, it provides a singleton instance.

Version:

Author:

SAP

Constructor Summary

PersistenceRuntime()

Method Summary

abstract ClassDescriptor	getClassDescriptor(java.lang.String classtype) Gets the classDescriptor attribute of the PersistenceRuntime object
static PersistenceRuntime	getInstance() Returns the singleton instance attribute of the PersistenceRuntime class.
abstract PersistenceManager	getPersistenceManager(VisibilityType visibility) returns implementation specific PersistenceManager.
void	optimizeDatabase() Triggers database specific optimizations.
abstract void	registerPersistenceMaster(PackagePersistenceMaster persistenceMaster) Registers a PackagePersistanceMaster instance.

Methods inherited from class java.lang.Object

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

Constructor Detail

PersistenceRuntime

public PersistenceRuntime()

Method Detail

getInstance

public static PersistenceRuntime getInstance()

Returns the singleton instance attribute of the PersistenceRuntime class. PersistenceRuntime does not consider ConversationId.

Returns:

The instance value

getPersistenceManager

public abstract PersistenceManager getPersistenceManager(VisibilityType visibility)
                                                  throws PersistenceException

returns implementation specific PersistenceManager.

Parameters:

visibility - Description of the Parameter

Returns:

The transactionManager value

Throws:

PersistenceException - Description of the Exception

registerPersistenceMaster

public abstract void registerPersistenceMaster(PackagePersistenceMaster persistenceMaster)
                                        throws PersistenceException

Registers a PackagePersistanceMaster instance.

The PackagePersistanceMaster provides descriptive information on Entity instances to be persisted.

Parameters:

persistenceMaster - Description of the Parameter

Throws:

PersistenceException - Description of the Exception

getClassDescriptor

public abstract ClassDescriptor getClassDescriptor(java.lang.String classtype)
                                            throws PersistenceException

Gets the classDescriptor attribute of the PersistenceRuntime object

Parameters:

classtype - Description of the Parameter

Returns:

The classDescriptor value

Throws:

PersistenceException - Description of the Exception

optimizeDatabase

public void optimizeDatabase()
                      throws PersistenceException

Triggers database specific optimizations. This operation performs a commit of all pending operations!

FileIO: Currently no operation.

DB2e: Table reorganisation (shrinks fragmented tables). This is also a default operation on MI startup, so calling this in your application is not necessary.

MaxDB: Runs an update of the optimizer statistics of all tables to speed up queries after large data inserts. This operation might take very long.

Throws:

PersistenceException - on any errors