org.openide.nodes

Class ChildFactory.Detachable<T>

java.lang.Object

org.openide.nodes.ChildFactory<T>

org.openide.nodes.ChildFactory.Detachable<T>

Type Parameters:

T - The key type for this child factory

Direct Known Subclasses:

DestroyableNodesFactory

Enclosing class:

ChildFactory<T>

public abstract static class ChildFactory.Detachable<T>
extends ChildFactory<T>

Subclass of ChildFactory with lifecycle methods which will be called on first use and last use.

Since:

org.openide.nodes 7.7

Nested Class Summary

Nested classes/interfaces inherited from class org.openide.nodes.ChildFactory

ChildFactory.Detachable<T>

Constructor Summary

Constructors

Constructor and Description
Detachable()

Method Summary

Modifier and Type	Method and Description
protected void	addNotify() Called immediately before the first call to createKeys().
protected void	removeNotify() Called when this child factory is no longer in memory.

Methods inherited from class org.openide.nodes.ChildFactory

createKeys, createNodeForKey, createNodesForKey, createWaitNode, refresh

Methods inherited from class java.lang.Object

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

Constructor Detail

Detachable

public Detachable()

Method Detail

addNotify

protected void addNotify()

Called immediately before the first call to createKeys(). Override to set up listening for changes, allocating expensive-to-create resources, etc.

removeNotify

protected void removeNotify()

Called when this child factory is no longer in memory. Does nothing by default; override if you need notification when not in use anymore. Note that this is usually not the best place for unregistering listeners, etc., as listeners usually keep the child factory in memory, preventing it from being collected, thus preventing this method to be called in the first place.