gumbo.graphic.space
Class AbstractGraphicSpaceRoot

java.lang.Object
  |
  +--gumbo.util.AbstractDisposable
        |
        +--gumbo.util.relation.AbstractTreeNodeDelegator
              |
              +--gumbo.graphic.space.AbstractSpaceNode
                    |
                    +--gumbo.graphic.space.AbstractGraphicSpaceRoot

All Implemented Interfaces:

Delegatable, Disposable, Graphic, GraphicSpaceRoot, java.io.Serializable, SpaceNode

public abstract class AbstractGraphicSpaceRoot

extends AbstractSpaceNode

implements GraphicSpaceRoot

A partial implementation of the GraphicSpaceRoot interface. Wraps the tree node delegate as a root, and throws an exception if the delegator is not a GraphicSpace.

Version:

$Revision: 1.2 $

Author:

Jon Barrilleaux (jonb@jmbaai.com) of JMB and Associates Inc.

See Also:

Serialized Form

Constructor Summary

AbstractGraphicSpaceRoot()
Creates an instance.

Method Summary

java.lang.Object	getDelegator() Gets the delegator of this delegate, as set by initDelegator().
Delegatable	initDelegator(java.lang.Object delegator) Used by delegators and serialization to initialize this delegate's delegator reference.
boolean	isDelegatorInited() Also returns false if this object is disposed.
protected abstract TreeNode	newRootNodeDelegate() Called during initialization as the factory method for the tree root delegate.
protected TreeNode	newTreeNodeDelegate() Called during initialization as the factory method for the tree node delegate.

Methods inherited from class gumbo.graphic.space.AbstractSpaceNode

getGraphic, getGraphicSpaceTree

Methods inherited from class gumbo.util.relation.AbstractTreeNodeDelegator

getTreeNodeDelegate, implDispose

Methods inherited from class gumbo.util.AbstractDisposable

dispose, isDisposed

Methods inherited from class java.lang.Object

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

Methods inherited from interface gumbo.graphic.space.GraphicSpaceRoot

getGraphicSpaceTree

Methods inherited from interface gumbo.graphic.Graphic

getGraphic

Methods inherited from interface gumbo.util.Disposable

dispose, isDisposed

Constructor Detail

AbstractGraphicSpaceRoot

public AbstractGraphicSpaceRoot()

Creates an instance. Master constructor.

Method Detail

newRootNodeDelegate

protected abstract TreeNode newRootNodeDelegate()

Called during initialization as the factory method for the tree root delegate. The delegate will be wrapped as a root node.

Returns:

New uninitialized delegate with a null parent. Never null.

newTreeNodeDelegate

protected final TreeNode newTreeNodeDelegate()

Description copied from class: AbstractTreeNodeDelegator

Called during initialization as the factory method for the tree node delegate. The delegate's delegator must either be uninitialized or this object.

Specified by:

newTreeNodeDelegate in class AbstractTreeNodeDelegator

Returns:

Reference to the delegate. Never null.

initDelegator

public Delegatable initDelegator(java.lang.Object delegator)

Description copied from interface: Delegatable

Used by delegators and serialization to initialize this delegate's delegator reference. Re-initialization with the same value is allowed. Throws an exception if initialization fails for any reason.

Specified by:

initDelegator in interface GraphicSpaceRoot

isDelegatorInited

public final boolean isDelegatorInited()

Also returns false if this object is disposed.

Specified by:

isDelegatorInited in interface Delegatable

Returns:

The result.

getDelegator

public final java.lang.Object getDelegator()

Description copied from interface: Delegatable

Gets the delegator of this delegate, as set by initDelegator(). Throws an exception if isDelegatorInited() is false.

Specified by:

getDelegator in interface GraphicSpaceRoot

Returns:

The graphic space delegator (GraphicSpace). Never null.