com.sdm.quasar.client.core.data.plugin
Interface DataCore

All Known Implementing Classes:

DefaultDataCore

public interface DataCore

Version:

1.$Revision$

Author:

Thomas Wolf

Method Summary

NodeController	getNodeController(java.lang.String key) Returns the internal node with the given key
DataManagerPlugIn	getPlugIn(java.lang.Class plugInInterface) Returns the desired plug in implementation
java.lang.Object	getSynchronizeObject() When performing an operation on the DataCore that should must be exclusive you should synchronize on this Object.
boolean	hasNode(java.lang.String key) Tests whether a given node exists
boolean	hasPlugIn(java.lang.Class plugInInterface) Tests whether the plug in is registered with the data core
void	registerDataManagerPluginCallback(DataManagerPluginCallback callback)
void	unregisterDataManagerPluginCallback(DataManagerPluginCallback callback)

Method Detail

getSynchronizeObject

public java.lang.Object getSynchronizeObject()

When performing an operation on the DataCore that should must be exclusive you should synchronize on this Object.

Returns:

the Object to synchronize on when performing exclusive operations within the DataManager.

hasNode

public boolean hasNode(java.lang.String key)

Tests whether a given node exists

Parameters:

key - the key of the node

Returns:

true iff the node exists

getNodeController

public NodeController getNodeController(java.lang.String key)

Returns the internal node with the given key

Parameters:

key - the key of the node

Returns:

the internal node with the given key

Throws:

java.lang.IllegalArgumentException - if the key is unknown

hasPlugIn

public boolean hasPlugIn(java.lang.Class plugInInterface)

Tests whether the plug in is registered with the data core

Parameters:

plugInInterface - the plug in interface

Returns:

true iff the plug in is available

getPlugIn

public DataManagerPlugIn getPlugIn(java.lang.Class plugInInterface)

Returns the desired plug in implementation

Parameters:

plugInInterface - the plug in interface

Returns:

the plug in implementation

Throws:

java.lang.IllegalArgumentException - if the plug in is not available

registerDataManagerPluginCallback

public void registerDataManagerPluginCallback(DataManagerPluginCallback callback)

unregisterDataManagerPluginCallback

public void unregisterDataManagerPluginCallback(DataManagerPluginCallback callback)