Package org.knime.core.webui.node.util

Class NodeCleanUpCallback

java.lang.Object

org.knime.core.webui.node.util.NodeCleanUpCallback

All Implemented Interfaces:

org.knime.core.node.workflow.NodeStateChangeListener, org.knime.core.node.workflow.WorkflowListener

public final class NodeCleanUpCallback
extends Object
implements org.knime.core.node.workflow.WorkflowListener, org.knime.core.node.workflow.NodeStateChangeListener

Helper to clean-up after a node removal, workflow disposal or (optionally) node state change. Once a clean-up has been triggered, all the registered listeners (on the node and the workflow) are removed which renders the NodeCleanUpCallback-instance useless afterwards.

Author:

Martin Horn, KNIME GmbH, Konstanz, Germany

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	NodeCleanUpCallback.Builder

Method Summary

Modifier and Type	Method	Description
static NodeCleanUpCallback.Builder	builder(org.knime.core.node.workflow.NodeContainer nc, Runnable onCleanUp)
void	stateChanged(org.knime.core.node.workflow.NodeStateEvent state)
void	workflowChanged(org.knime.core.node.workflow.WorkflowEvent e)

Methods inherited from class java.lang.Object

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

Method Details

workflowChanged

public void workflowChanged(org.knime.core.node.workflow.WorkflowEvent e)

Specified by:

workflowChanged in interface org.knime.core.node.workflow.WorkflowListener

builder

public static NodeCleanUpCallback.Builder builder(org.knime.core.node.workflow.NodeContainer nc,
 Runnable onCleanUp)

Parameters:

nc - the node to watch

onCleanUp - the callback to call when the node is being disposed.

Returns:

a new builder instance

stateChanged

public void stateChanged(org.knime.core.node.workflow.NodeStateEvent state)

Specified by:

stateChanged in interface org.knime.core.node.workflow.NodeStateChangeListener