org.clapper.util.classutil
Class SubclassClassFilter

java.lang.Object
  org.clapper.util.classutil.SubclassClassFilter

All Implemented Interfaces:

ClassFilter

public class SubclassClassFilter
extends java.lang.Object
implements ClassFilter

SubclassClassFilter is a ClassFilter that matches class names that (a) can be loaded and (b) extend a given subclass or implement a specified interface, directly or indirectly. It uses the java.lang.Class.isAssignableFrom()

method, so it actually has to load each class it tests. For maximum flexibility, a SubclassClassFilter can be configured to use a specific class loader.

Version:

$Revision: 6735 $

Author:

Copyright © 2006 Brian M. Clapper

Constructor Summary

SubclassClassFilter(java.lang.Class baseClassOrInterface)
Construct a new SubclassClassFilter that will accept only classes that extend the specified class or implement the specified interface.

Method Summary

boolean

accept(ClassInfo classInfo, ClassFinder classFinder) Perform the acceptance test on the loaded Class object.

Methods inherited from class java.lang.Object

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

Constructor Detail

SubclassClassFilter

public SubclassClassFilter(java.lang.Class baseClassOrInterface)

Construct a new SubclassClassFilter that will accept only classes that extend the specified class or implement the specified interface.

Parameters:

baseClassOrInterface - the base class or interface

Method Detail

accept

public boolean accept(ClassInfo classInfo,
                      ClassFinder classFinder)

Perform the acceptance test on the loaded Class object.

Specified by:

accept in interface ClassFilter

Parameters:

classInfo - the ClassInfo object to test

classFinder - the invoking ClassFinder object

Returns:

true if the class name matches, false if it doesn't