com.sun.j3d.utils.scenegraph.io.state.javax.media.j3d

Class GroupState

java.lang.Object

com.sun.j3d.utils.scenegraph.io.state.javax.media.j3d.SceneGraphObjectState

com.sun.j3d.utils.scenegraph.io.state.javax.media.j3d.NodeState

com.sun.j3d.utils.scenegraph.io.state.javax.media.j3d.GroupState

Direct Known Subclasses:

BranchGroupState, DecalGroupState, OrderedGroupState, PrimitiveState, SharedGroupState, SwitchState, TransformGroupState

public class GroupState
extends NodeState

Field Summary

Fields

Modifier and Type	Field and Description
protected SceneGraphObjectState[]	groupChildren

Fields inherited from class com.sun.j3d.utils.scenegraph.io.state.javax.media.j3d.SceneGraphObjectState

control, node, nodeClassName, symbol

Constructor Summary

Constructors

Constructor and Description
GroupState(SymbolTableData symbol, Controller control)

Method Summary

Methods

Modifier and Type	Method and Description
void	buildGraph() Subclasses should processes their own buildGraph requirements BEFORE calling super.buildGraph().
private boolean	checkProcessChildren()
void	cleanup()
protected SceneGraphObject	createNode() Create a new Java3D node for this object.
protected boolean	processChildren() Returns true if the groups children should be saved.
void	readObject(java.io.DataInput in)
void	writeObject(java.io.DataOutput out) DO NOT call symbolTable.addReference in writeObject as this (may) result in a concurrentModificationException.

Methods inherited from class com.sun.j3d.utils.scenegraph.io.state.javax.media.j3d.SceneGraphObjectState

createNode, createNode, createNode, createState, getNode, getNodeID, getSymbol, readConstructorParams, readString, writeConstructorParams, writeString

Methods inherited from class java.lang.Object

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

Field Detail

groupChildren

protected SceneGraphObjectState[] groupChildren

Constructor Detail

GroupState

public GroupState(SymbolTableData symbol,
          Controller control)

Method Detail

writeObject

public void writeObject(java.io.DataOutput out)
                 throws java.io.IOException

Description copied from class: SceneGraphObjectState

DO NOT call symbolTable.addReference in writeObject as this (may) result in a concurrentModificationException. All references should be created in the constructor

Overrides:

writeObject in class NodeState

Throws:

java.io.IOException

readObject

public void readObject(java.io.DataInput in)
                throws java.io.IOException

Overrides:

readObject in class NodeState

Throws:

java.io.IOException

checkProcessChildren

private boolean checkProcessChildren()

processChildren

protected boolean processChildren()

Returns true if the groups children should be saved. This is overridden by 'black box' groups such a geometry primitives When users create nodes that implement SceneGraphIO interface then this method is superceded by saveChildren() in the SceneGraphIO interface

buildGraph

public void buildGraph()

Description copied from class: SceneGraphObjectState

Subclasses should processes their own buildGraph requirements BEFORE calling super.buildGraph(). This ensures that when restoreSceneGraphObjectReferences is called in user code our references have been resolved

Overrides:

buildGraph in class SceneGraphObjectState

cleanup

public void cleanup()

Overrides:

cleanup in class SceneGraphObjectState

createNode

protected SceneGraphObject createNode()

Description copied from class: SceneGraphObjectState

Create a new Java3D node for this object. This method is ONLY used when the Java3D Class type matches the State type, ie this does NOT handle subclasses of Java3D. For Java3D subclasses use createNode( Class state) This method MUST be implemented by all State objects but is not abstract to allow for external subclassing

Overrides:

createNode in class SceneGraphObjectState