org.codehaus.plexus.classworlds.realm

Class ClassRealm

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

org.codehaus.plexus.classworlds.realm.ClassRealm

All Implemented Interfaces:

Closeable, AutoCloseable

Direct Known Subclasses:

ClassRealmReverseAdapter

public class ClassRealm
extends URLClassLoader

Implementation of ClassRealm. The realm is the class loading gateway. The search is proceded as follows:

1. Search the parent class loader (passed via the constructor) if there is one.
2. Search the imports.
3. Search this realm's constituents.
4. Search the parent realm.

Version:

$Id: ClassRealm.java 8170 2009-05-05 12:41:28Z bentmann $

Author:

bob mcwhirter, Jason van Zyl

Constructor Summary

Constructors

Constructor and Description
ClassRealm(ClassWorld world, String id)
ClassRealm(ClassWorld world, String id, ClassLoader foreignClassLoader)

Method Summary

Modifier and Type	Method and Description
void	addURL(URL url)
ClassRealm	createChildRealm(String id)
void	display()
boolean	equals(Object o)
Enumeration	findRealmResources(String name)
Enumeration	findResources(String name)
String	getId()
ClassRealm	getImportRealm(String classname)
ClassRealm	getParentRealm()
URL	getRealmResource(String name)
InputStream	getRealmResourceAsStream(String name)
URL	getResource(String name)
InputStream	getResourceAsStream(String name)
Strategy	getStrategy()
ClassWorld	getWorld()
void	importFrom(String realmId, String packageName)
Class	loadClass(String name)
protected Class	loadClass(String name, boolean resolve)
Class	loadClassFromImport(String name)
Class	loadClassFromParent(String name)
Class	loadClassFromSelf(String name)
Class	loadRealmClass(String name)
URL	loadResourceFromImport(String name)
URL	loadResourceFromParent(String name)
URL	loadResourceFromSelf(String name)
Enumeration	loadResourcesFromImport(String name)
Enumeration	loadResourcesFromParent(String name)
Enumeration	loadResourcesFromSelf(String name)
ClassRealm	locateSourceRealm(String classname)
void	setParentRealm(ClassRealm realm)
String	toString()

Methods inherited from class java.net.URLClassLoader

close, definePackage, findClass, findResource, getPermissions, getURLs, newInstance, newInstance

Methods inherited from class java.security.SecureClassLoader

defineClass, defineClass

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findLibrary, findLoadedClass, findSystemClass, getClassLoadingLock, getPackage, getPackages, getParent, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, registerAsParallelCapable, resolveClass, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object

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

Constructor Detail

ClassRealm

public ClassRealm(ClassWorld world,
                  String id)

ClassRealm

public ClassRealm(ClassWorld world,
                  String id,
                  ClassLoader foreignClassLoader)

Method Detail

getId

public String getId()

getWorld

public ClassWorld getWorld()

importFrom

public void importFrom(String realmId,
                       String packageName)
                throws NoSuchRealmException

Throws:

NoSuchRealmException

locateSourceRealm

public ClassRealm locateSourceRealm(String classname)

getStrategy

public Strategy getStrategy()

setParentRealm

public void setParentRealm(ClassRealm realm)

getParentRealm

public ClassRealm getParentRealm()

createChildRealm

public ClassRealm createChildRealm(String id)
                            throws DuplicateRealmException

Throws:

DuplicateRealmException

addURL

public void addURL(URL url)

Overrides:

addURL in class URLClassLoader

loadRealmClass

public Class loadRealmClass(String name)
                     throws ClassNotFoundException

Throws:

ClassNotFoundException

getRealmResource

public URL getRealmResource(String name)

getRealmResourceAsStream

public InputStream getRealmResourceAsStream(String name)

findRealmResources

public Enumeration findRealmResources(String name)
                               throws IOException

Throws:

IOException

loadClass

public Class loadClass(String name)
                throws ClassNotFoundException

Overrides:

loadClass in class ClassLoader

Throws:

ClassNotFoundException

loadClass

protected Class loadClass(String name,
                          boolean resolve)
                   throws ClassNotFoundException

Overrides:

loadClass in class ClassLoader

Throws:

ClassNotFoundException

getResource

public URL getResource(String name)

Overrides:

getResource in class ClassLoader

getResourceAsStream

public InputStream getResourceAsStream(String name)

Overrides:

getResourceAsStream in class URLClassLoader

findResources

public Enumeration findResources(String name)
                          throws IOException

Overrides:

findResources in class URLClassLoader

Throws:

IOException

display

public void display()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

getImportRealm

public ClassRealm getImportRealm(String classname)

loadClassFromImport

public Class loadClassFromImport(String name)

loadClassFromSelf

public Class loadClassFromSelf(String name)

loadClassFromParent

public Class loadClassFromParent(String name)

loadResourceFromImport

public URL loadResourceFromImport(String name)

loadResourceFromSelf

public URL loadResourceFromSelf(String name)

loadResourceFromParent

public URL loadResourceFromParent(String name)

loadResourcesFromImport

public Enumeration loadResourcesFromImport(String name)

loadResourcesFromSelf

public Enumeration loadResourcesFromSelf(String name)

loadResourcesFromParent

public Enumeration loadResourcesFromParent(String name)