org.web3d.vrml.renderer
Class CRExternProtoCreator

java.lang.Object
  org.web3d.vrml.renderer.CRExternProtoCreator

public abstract class CRExternProtoCreator
extends java.lang.Object

A class that is used to create stub instances of extern protos from their definitions.

The creator strips the definition apart and builds a runtime node based on the details and the node factory provided. The creator can handle one instance at a time, athough it will correctly parse and build nested proto declarations without extra effort.

The implementation is designed to be derived by a concrete instance and should never be created directly. This derived class should implement a method

   public RendererProtoInstance createInstanceExternalPrototypeDecl proto);
 

This method takes the declaration and creates the true proto instance, that extends CRProtoInstance. This instance is then passed to the protected createInstance() method of this class, which then does all the hard work of building the correct instance.

Version:

$Revision: 1.5 $

Author:

Alan Hudson, Justin Couch

Field Summary

protected boolean	isVRML97 Flag to say if the current proto instance is VRML97 capable
protected java.lang.String	worldURL The current world's root URL

Constructor Summary

protected

CRExternProtoCreator(java.lang.String worldURL) Create a new creator instance for the given world root URL

Method Summary

protected void

createInstance(CRProtoInstance proto) Build a stub instance of the proto from the given description.

Methods inherited from class java.lang.Object

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

Field Detail

isVRML97

protected boolean isVRML97

Flag to say if the current proto instance is VRML97 capable

worldURL

protected java.lang.String worldURL

The current world's root URL

Constructor Detail

CRExternProtoCreator

protected CRExternProtoCreator(java.lang.String worldURL)

Create a new creator instance for the given world root URL

Parameters:

worldURL - the current world's root URL

Method Detail

createInstance

protected void createInstance(CRProtoInstance proto)

Build a stub instance of the proto from the given description.

Parameters:

proto - The extern proto to stub from