ariba.ui.aribaweb.util
Class AWClassLoader

java.lang.Object
  ariba.ui.aribaweb.util.AWClassLoader

Direct Known Subclasses:

AWClassLoader.PairedFileLoader, AWDefaultClassLoader

public class AWClassLoader
extends java.lang.Object

Loader abstraction used by AW to load (and reload) classes for AWComponents. Subclasses can support dynamic class reloading (AWReload), alternate languages (Groovy, etc)

Nested Class Summary

static class	AWClassLoader.LoadInfo
static class	AWClassLoader.PairedFileLoader Loader subclass for loaders that look for a source file sitting alongside the awl

Field Summary

static java.lang.String

ClassReloadedTopic

Constructor Summary

AWClassLoader()

Method Summary

void	checkForUpdates() For class loaders that support reloading non-AWComponent classes, this is a trigger point to scan previously loaded files to see if any should be reloaded (e.g.
java.lang.Class	checkReloadClass(java.lang.Class cls)
java.lang.Class	getClass(java.lang.String className) Load class.
java.lang.String	getComponentNameForClass(java.lang.String className)
boolean	isReloadable(java.lang.String name)
void	setChainedClassLoader(AWClassLoader next) The chained classloader is forwarded all calls not fully handled by the first AWClassLoader (when the first one calls super()).

Methods inherited from class java.lang.Object

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

Field Detail

ClassReloadedTopic

public static final java.lang.String ClassReloadedTopic

See Also:

Constant Field Values

Constructor Detail

AWClassLoader

public AWClassLoader()

Method Detail

getClass

public java.lang.Class getClass(java.lang.String className)
                         throws java.lang.ClassNotFoundException

Load class.

Returns:

null if the class is not found, the class (or a suitable subclass) otherwise

Throws:

java.lang.ClassNotFoundException

isReloadable

public boolean isReloadable(java.lang.String name)

Returns:

true if the class might be reloaded, so should not be cached.

getComponentNameForClass

public java.lang.String getComponentNameForClass(java.lang.String className)

Parameters:

className - the name of the class for the component.

Returns:

The name of the component. The className may be that of a subclass of the actual class, not the real className.

checkForUpdates

public void checkForUpdates()

For class loaders that support reloading non-AWComponent classes, this is a trigger point to scan previously loaded files to see if any should be reloaded (e.g. scanning .class files in the build directory)

checkReloadClass

public java.lang.Class checkReloadClass(java.lang.Class cls)

setChainedClassLoader

public void setChainedClassLoader(AWClassLoader next)

The chained classloader is forwarded all calls not fully handled by the first AWClassLoader (when the first one calls super()).

Parameters:

next - the loader to receive forwarded calls