com.objectplanet.survey.plugin
Class PluginJARClassLoader

java.lang.Object
  java.lang.ClassLoader
      com.objectplanet.survey.plugin.PluginJARClassLoader

public class PluginJARClassLoader
extends java.lang.ClassLoader

A class loader implementation that loads classes from JAR files.

Author:

Torgeir Punnerud

Created:

26. august 2002

Constructor Summary

PluginJARClassLoader()
This constructor creates a class loader for loading classes from all plugins in one single Jar file.

PluginJARClassLoader(java.lang.String path)
Constructor for the PluginJARClassLoader object

Method Summary

void	closeZipFile() Closes the ZIP file.
java.util.zip.ZipFile	getZipFile() Returns the ZIP file associated with this class loader.
java.lang.Class	loadClass(java.lang.String clazz, boolean resolveIt)

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, getParent, getResource, getResourceAsStream, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus

Methods inherited from class java.lang.Object

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

Constructor Detail

PluginJARClassLoader

public PluginJARClassLoader()

This constructor creates a class loader for loading classes from all plugins in one single Jar file. To load plugins from more than one jar file, it must be handled outside this class.

PluginJARClassLoader

public PluginJARClassLoader(java.lang.String path)
                     throws java.io.IOException

Constructor for the PluginJARClassLoader object

Parameters:

path - Path to the jar file

Throws:

java.io.IOException - IOException

Method Detail

getZipFile

public java.util.zip.ZipFile getZipFile()

Returns the ZIP file associated with this class loader.

Returns:

The zipFile value

loadClass

public java.lang.Class loadClass(java.lang.String clazz,
                                 boolean resolveIt)
                          throws java.lang.ClassNotFoundException

Overrides:

loadClass in class java.lang.ClassLoader

Parameters:

clazz - Description of Parameter

resolveIt - Description of Parameter

Returns:

Description of the Returned Value

Throws:

java.lang.ClassNotFoundException - if the class could not be found

closeZipFile

public void closeZipFile()

Closes the ZIP file. This plugin will no longer be usable after this.