Package org.hippoecm.frontend.model.tree

Class ObservableTreeModel

java.lang.Object

javax.swing.tree.DefaultTreeModel

org.hippoecm.frontend.model.tree.ObservableTreeModel

All Implemented Interfaces:

Serializable, TreeModel, org.apache.wicket.model.IDetachable, org.apache.wicket.util.io.IClusterable, IObservable, IJcrTreeModel

public class ObservableTreeModel
extends DefaultTreeModel
implements IJcrTreeModel, IObservable, org.apache.wicket.model.IDetachable

A JCR tree model implementation that can be shared by multiple tree instances. It is observable and can therefore not be used to register listeners. Use the JcrTreeModel instead to register TreeModelListeners. Each instance of this class should be registered separately. Hence this class does not override Object.equals(java.lang.Object) nor Object.hashCode().

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	ObservableTreeModel.ObservableTreeModelEvent
class	ObservableTreeModel.TranslationEvent

Field Summary

Fields

Modifier and Type	Field	Description
protected final IJcrTreeNode	root

Fields inherited from class javax.swing.tree.DefaultTreeModel

asksAllowsChildren, listenerList

Constructor Summary

Constructors

Constructor	Description
ObservableTreeModel(IJcrTreeNode rootModel)

Method Summary

Modifier and Type	Method	Description
void	addTreeModelListener(TreeModelListener l)
void	detach()
TreePath	lookup(JcrNodeModel nodeModel)
void	removeTreeModelListener(TreeModelListener l)
void	setObservationContext(IObservationContext<? extends IObservable> context)	Before observation is started on the observable, an observation context is injected by the observer registry.
void	setTreeState(org.apache.wicket.extensions.markup.html.tree.DefaultTreeState state)
void	startObservation()	When the first IObserver of this observable is registered with the observer registry, observation is started.
void	stopObservation()	When the last IObserver unregisters, observation is stopped.

Methods inherited from class javax.swing.tree.DefaultTreeModel

asksAllowsChildren, fireTreeNodesChanged, fireTreeNodesInserted, fireTreeNodesRemoved, fireTreeStructureChanged, getChild, getChildCount, getIndexOfChild, getListeners, getPathToRoot, getPathToRoot, getRoot, getTreeModelListeners, insertNodeInto, isLeaf, nodeChanged, nodesChanged, nodeStructureChanged, nodesWereInserted, nodesWereRemoved, reload, reload, removeNodeFromParent, setAsksAllowsChildren, setRoot, valueForPathChanged

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hippoecm.frontend.model.event.IObservable

equals, hashCode

Methods inherited from interface javax.swing.tree.TreeModel

getChild, getChildCount, getIndexOfChild, getRoot, isLeaf, valueForPathChanged

Field Details

root

protected final IJcrTreeNode root

Constructor Details

ObservableTreeModel

public ObservableTreeModel(IJcrTreeNode rootModel)

Method Details

setTreeState

public void setTreeState(org.apache.wicket.extensions.markup.html.tree.DefaultTreeState state)

lookup

public TreePath lookup(JcrNodeModel nodeModel)

Specified by:

lookup in interface IJcrTreeModel

detach

public void detach()

Specified by:

detach in interface org.apache.wicket.model.IDetachable

setObservationContext

public void setObservationContext(IObservationContext<? extends IObservable> context)

Description copied from interface: IObservable

Before observation is started on the observable, an observation context is injected by the observer registry. This context can be used to notify listeners.

Specified by:

setObservationContext in interface IObservable

startObservation

public void startObservation()

Description copied from interface: IObservable

When the first IObserver of this observable is registered with the observer registry, observation is started. Implementations must notify observers until observation is stopped.

An implementation should register listeners with external data sources, when appropriate. It is possible for an observable to register as an observer for another observable.

Specified by:

startObservation in interface IObservable

stopObservation

public void stopObservation()

Description copied from interface: IObservable

When the last IObserver unregisters, observation is stopped. Any listeners or observers registered by the observable must be unregistered by the implementation.

Specified by:

stopObservation in interface IObservable

addTreeModelListener

public void addTreeModelListener(TreeModelListener l)

Specified by:

addTreeModelListener in interface TreeModel

Overrides:

addTreeModelListener in class DefaultTreeModel

removeTreeModelListener

public void removeTreeModelListener(TreeModelListener l)

Specified by:

removeTreeModelListener in interface TreeModel

Overrides:

removeTreeModelListener in class DefaultTreeModel