Package org.xj3d.ui.construct

Class ClassLoadUtilities

java.lang.Object

org.xj3d.ui.construct.ClassLoadUtilities

public class ClassLoadUtilities
extends Object

Utility methods for loading classes.

Version:

$Revision: 1.2 $

Author:

Rex Melton

Field Summary

Fields

Modifier and Type	Field	Description
protected org.j3d.util.ErrorReporter	errorReporter	The error reporting mechanism

Constructor Summary

Constructors

Constructor	Description
ClassLoadUtilities()	Constructor
ClassLoadUtilities(org.j3d.util.ErrorReporter reporter)	Constructor

Method Summary

Modifier and Type	Method	Description
Object	loadClass(String classname, boolean required)	Load a class instance constructed from the default constructor.
Object	loadClass(String classname, Object[] constParams, Class[] paramTypes, boolean required)	Load a class instance constructed with the argument parameters.
protected ScriptEngine	loadScriptEngine(String classname, BrowserCore core, ViewpointManager viewpointManager, RouteManager routeManager, FrameStateManager stateManager, WorldLoaderManager worldLoader, boolean required)	Load a script engine.

Methods inherited from class java.lang.Object

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

Field Details

errorReporter

protected org.j3d.util.ErrorReporter errorReporter

The error reporting mechanism

Constructor Details

ClassLoadUtilities

public ClassLoadUtilities()

Constructor

ClassLoadUtilities

public ClassLoadUtilities(org.j3d.util.ErrorReporter reporter)

Constructor

Parameters:

reporter - The error reporter

Method Details

loadClass

public Object loadClass(String classname,
 boolean required)

Load a class instance constructed from the default constructor.

Parameters:

classname - The fully qualified name of the class to load

required - Is this class required for operation, If true - an exception will be thrown if the class fails to load for any reason. If false - an error report will be generated if the class fails to load, but execution will continue and a null will be returned.

Returns:

The class instance.

Throws:

InvalidConfigurationException - If the required flag is true and the class cannot be loaded.

loadClass

public Object loadClass(String classname,
 Object[] constParams,
 Class[] paramTypes,
 boolean required)

Load a class instance constructed with the argument parameters.

Parameters:

classname - The fully qualified name of the class to load.

constParams - The array of parameters to pass to the Class's constructor.

paramTypes - The array of class objects, matching the constParams argument that are used to select the appropriate Class constructor.

required - Is this class required for operation. If true - an exception will be thrown if the class fails to load for any reason. If false - an error report will be generated if the class fails to load, but execution will continue and a null will be returned.

Returns:

The class instance.

loadScriptEngine

protected ScriptEngine loadScriptEngine(String classname,
 BrowserCore core,
 ViewpointManager viewpointManager,
 RouteManager routeManager,
 FrameStateManager stateManager,
 WorldLoaderManager worldLoader,
 boolean required)

Load a script engine.

Parameters:

classname - The fully qualified name of the script engine class to load

core - The browser core

viewpointManager - The

routeManager - The route manager

stateManager - The frame state manager

worldLoader - The manager of the world loaders

required - Is this class required for operation. If true - an exception will be thrown if the class fails to load for any reason. If false - an error report will be generated if the class fails to load, but execution will continue and a null will be returned.

Returns:

The script engine instance.

Throws:

InvalidConfigurationException - If the required flag is true and the class cannot be loaded.