Package org.apache.commons.jelly.tags.core

Class BaseClassLoaderTag

java.lang.Object

org.apache.commons.jelly.TagSupport

org.apache.commons.jelly.tags.core.BaseClassLoaderTag

All Implemented Interfaces:

Tag

Direct Known Subclasses:

ArgTag, NewTag

public abstract class BaseClassLoaderTag
extends TagSupport

Abstract base tag providing ClassLoader support.

Version:

$Revision: 155420 $

Author:

James Strachan, Rodney Waldhoff

Field Summary

Fields

Modifier and Type	Field	Description
protected ClassLoader	classLoader	The class loader to use for instantiating application objects.
protected boolean	useContextClassLoader	Do we want to use the Context ClassLoader when loading classes for instantiating new objects? Default is false.

Fields inherited from class org.apache.commons.jelly.TagSupport

body, context, parent

Constructor Summary

Constructors

Constructor	Description
BaseClassLoaderTag()

Method Summary

Modifier and Type	Method	Description
ClassLoader	getClassLoader()	Return the class loader to be used for instantiating application objects when required.
boolean	getUseContextClassLoader()	Return the boolean as to whether the context classloader should be used.
void	setClassLoader(ClassLoader classLoader)	Set the class loader to be used for instantiating application objects when required.
void	setUseContextClassLoader(boolean use)	Determine whether to use the Context ClassLoader (the one found by calling Thread.currentThread().getContextClassLoader()) to resolve/load classes.

Methods inherited from class org.apache.commons.jelly.TagSupport

findAncestorWithClass, findAncestorWithClass, findAncestorWithClass, findAncestorWithClass, findAncestorWithClass, findAncestorWithClass, getBody, getBodyText, getBodyText, getContext, getParent, invokeBody, isEscapeText, isTrim, setBody, setContext, setEscapeText, setParent, setTrim, trimBody

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.commons.jelly.Tag

doTag

Field Details

classLoader

protected ClassLoader classLoader

The class loader to use for instantiating application objects. If not specified, the context class loader, or the class loader used to load XMLParser itself, is used, based on the value of the useContextClassLoader variable.

useContextClassLoader

protected boolean useContextClassLoader

Do we want to use the Context ClassLoader when loading classes for instantiating new objects? Default is false.

Constructor Details

BaseClassLoaderTag

public BaseClassLoaderTag()

Method Details

getClassLoader

public ClassLoader getClassLoader()

Return the class loader to be used for instantiating application objects when required. This is determined based upon the following rules:

• The class loader set by setClassLoader(), if any
• The thread context class loader, if it exists and the useContextClassLoader property is set to true
• The class loader used to load the XMLParser class itself.

setClassLoader

public void setClassLoader(ClassLoader classLoader)

Set the class loader to be used for instantiating application objects when required.

Parameters:

classLoader - The new class loader to use, or null to revert to the standard rules

getUseContextClassLoader

public boolean getUseContextClassLoader()

Return the boolean as to whether the context classloader should be used.

setUseContextClassLoader

public void setUseContextClassLoader(boolean use)

Determine whether to use the Context ClassLoader (the one found by calling Thread.currentThread().getContextClassLoader()) to resolve/load classes. If not using Context ClassLoader, then the class-loading defaults to using the calling-class' ClassLoader.

Parameters:

use - determines whether to use JellyContext ClassLoader.