Package org.graffiti.event

Class NodeAdapter

java.lang.Object

org.graffiti.event.NodeAdapter

All Implemented Interfaces:

EventListener, NodeListener, TransactionListener

public class NodeAdapter
extends Object
implements NodeListener

Adapter for the NodeListener interface, providing default empty implementation. Useful, given you don't need all interface methods.

Since:

2.7.0

Author:

D. Garkov

Constructor Summary

Constructors

Constructor	Description
NodeAdapter()

Method Summary

Modifier and Type	Method	Description
void	postUndirectedEdgeAdded(NodeEvent e)	Called after an (undirected) edge has been added to the node.
void	postUndirectedEdgeRemoved(NodeEvent e)	Called after an (undirected) edge has been removed from the node.
void	preUndirectedEdgeAdded(NodeEvent e)	Called just before an (undirected) edge is added to the node.
void	preUndirectedEdgeRemoved(NodeEvent e)	Called just before an (undirected) edge is removed from the node.
void	transactionFinished(TransactionEvent e, BackgroundTaskStatusProviderSupportingExternalCall status)	Called when a transaction has stopped.
void	transactionStarted(TransactionEvent e)	Called when a transaction has started.

Methods inherited from class java.lang.Object

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

Constructor Details

NodeAdapter

public NodeAdapter()

Method Details

transactionFinished

public void transactionFinished(TransactionEvent e,
BackgroundTaskStatusProviderSupportingExternalCall status)

Description copied from interface: TransactionListener

Called when a transaction has stopped.
The class TransactionHashMap merges duplicate AttributeEvents. In case the Attribute path for the same Attributable is not equal, detailed information about Attribute path is lost. Instead a generic AttributeEvent containing just the Attributable is in the list of changed Objects (see TransactionEvent).
In case no detailed information about an Attribute change is available, your code should completely re-process the affected Attributable.

Specified by:

transactionFinished in interface TransactionListener

Parameters:

e - the EdgeEvent detailing the changes.

transactionStarted

public void transactionStarted(TransactionEvent e)

Description copied from interface: TransactionListener

Called when a transaction has started.

Specified by:

transactionStarted in interface TransactionListener

Parameters:

e - the EdgeEvent detailing the changes.

postUndirectedEdgeAdded

public void postUndirectedEdgeAdded(NodeEvent e)

Description copied from interface: NodeListener

Called after an (undirected) edge has been added to the node. (For directed edges pre- In/Out- EdgeAdded is called.)

Specified by:

postUndirectedEdgeAdded in interface NodeListener

Parameters:

e - The NodeEvent detailing the changes.

postUndirectedEdgeRemoved

public void postUndirectedEdgeRemoved(NodeEvent e)

Description copied from interface: NodeListener

Called after an (undirected) edge has been removed from the node. (For directed edges pre- In/Out- EdgeRemoved is called.)

Specified by:

postUndirectedEdgeRemoved in interface NodeListener

Parameters:

e - The NodeEvent detailing the changes.

preUndirectedEdgeAdded

public void preUndirectedEdgeAdded(NodeEvent e)

Description copied from interface: NodeListener

Called just before an (undirected) edge is added to the node. (For directed edges pre- In/Out- EdgeAdded is called.)

Specified by:

preUndirectedEdgeAdded in interface NodeListener

Parameters:

e - The NodeEvent detailing the changes.

preUndirectedEdgeRemoved

public void preUndirectedEdgeRemoved(NodeEvent e)

Description copied from interface: NodeListener

Called just before an (undirected) edge is removed from the node. (For directed edges pre- In/Out- EdgeRemoved is called.)

Specified by:

preUndirectedEdgeRemoved in interface NodeListener

Parameters:

e - The NodeEvent detailing the changes.