org.quartz.spi
Interface ClassLoadHelper

All Known Implementing Classes:

CascadingClassLoadHelper, InitThreadContextClassLoadHelper, LoadingLoaderClassLoadHelper, SimpleClassLoadHelper, ThreadContextClassLoadHelper

public interface ClassLoadHelper

An interface for classes wishing to provide the service of loading classes and resources within the scheduler...

Author:

jhouse, pl47ypus

Method Summary

java.lang.ClassLoader	getClassLoader() Enable sharing of the class-loader with 3rd party (e.g.
java.net.URL	getResource(java.lang.String name) Finds a resource with a given name.
java.io.InputStream	getResourceAsStream(java.lang.String name) Finds a resource with a given name.
void	initialize() Called to give the ClassLoadHelper a chance to initialize itself, including the opportunity to "steal" the class loader off of the calling thread, which is the thread that is initializing Quartz.
java.lang.Class<?>	loadClass(java.lang.String name) Return the class with the given name.
<T> java.lang.Class<? extends T>	loadClass(java.lang.String name, java.lang.Class<T> clazz) Return the class of the given type with the given name.

Method Detail

initialize

void initialize()

Called to give the ClassLoadHelper a chance to initialize itself, including the opportunity to "steal" the class loader off of the calling thread, which is the thread that is initializing Quartz.

loadClass

java.lang.Class<?> loadClass(java.lang.String name)
                             throws java.lang.ClassNotFoundException

Return the class with the given name.

Parameters:

name - the fqcn of the class to load.

Returns:

the requested class.

Throws:

java.lang.ClassNotFoundException - if the class can be found in the classpath.

loadClass

<T> java.lang.Class<? extends T> loadClass(java.lang.String name,
                                           java.lang.Class<T> clazz)
                                       throws java.lang.ClassNotFoundException

Return the class of the given type with the given name.

Parameters:

name - the fqcn of the class to load.

Returns:

the requested class.

Throws:

java.lang.ClassNotFoundException - if the class can be found in the classpath.

getResource

java.net.URL getResource(java.lang.String name)

Finds a resource with a given name. This method returns null if no resource with this name is found.

Parameters:

name - name of the desired resource

Returns:

a java.net.URL object

getResourceAsStream

java.io.InputStream getResourceAsStream(java.lang.String name)

Finds a resource with a given name. This method returns null if no resource with this name is found.

Parameters:

name - name of the desired resource

Returns:

a java.io.InputStream object

getClassLoader

java.lang.ClassLoader getClassLoader()

Enable sharing of the class-loader with 3rd party (e.g. digester).

Returns:

the class-loader user be the helper.