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2010-05-31T14:38:12Z

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== BeanContextSupport: addBeanContextMembershipListener(BeanContextMembershipListener bcml) ==



<source lang="java">

/*
* Copyright (c) 1995 - 2008 Sun Microsystems, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Sun Microsystems nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
import java.beans.beancontext.BeanContextChildSupport;
import java.beans.beancontext.BeanContextMembershipEvent;
import java.beans.beancontext.BeanContextMembershipListener;
import java.beans.beancontext.BeanContextSupport;
/**
* A simple test program to illustrate delivery of the
* BeanContextMembershipEvent.
*/
public class MembershipTest {
public static void main(String[] args) {
BeanContextSupport context = new BeanContextSupport(); // the context
MyMembershipListener listener = new MyMembershipListener();
BeanContextChildSupport bean = new BeanContextChildSupport(); // a JavaBean
context.addBeanContextMembershipListener(listener); // now listening!
context.add(bean);
context.remove(bean);
}
}
/**
* A custom implementation of the BeanContextMembershipListener interface.
*/
class MyMembershipListener implements BeanContextMembershipListener {
public void childrenAdded(BeanContextMembershipEvent bcme) {
System.out.println("Another bean has been added to the context.");
}
public void childrenRemoved(BeanContextMembershipEvent bcme) {
System.out.println("A bean has been removed from the context.");
}
}

</source>



== BeanContextSupport: contains(Object o) ==



<source lang="java">

/*
* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* -Redistribution of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* -Redistribution in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
* ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
* OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN")
* AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE
* AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
* DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST
* REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,
* INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY
* OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE,
* EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed, licensed or intended
* for use in the design, construction, operation or maintenance of any
* nuclear facility.
*/
import java.beans.beancontext.BeanContextChildSupport;
import java.beans.beancontext.BeanContextSupport;
/**
* A test program that adds a bean to a beancontext, and reports on various
* aspects of the context"s membership state. This program also shows that a
* bean"s getBeanContext() method can be called to get a reference to its
* enclosing context.
*/
public class Example1 {
private static BeanContextSupport context = new BeanContextSupport(); // The
// BeanContext
private static BeanContextChildSupport bean = new BeanContextChildSupport(); // The
// JavaBean
public static void main(String[] args) {
report();
// Add the bean to the context
System.out.println("Adding bean to context...");
context.add(bean);
report();
}
private static void report() {
// Print out a report of the context"s membership state.
// Is the context empty?
System.out.println("Is the context empty? " + context.isEmpty());
// Has the context been set for the child bean?
boolean result = (bean.getBeanContext() != null);
System.out.println("Does the bean have a context yet? " + result);
// Number of children in the context
System.out.println("Number of children in the context: "
+ context.size());
// Is the specific bean a member of the context?
System.out.println("Is the bean a member of the context? "
+ context.contains(bean));
// Equality test
if (bean.getBeanContext() != null) {
boolean isEqual = (bean.getBeanContext() == context); // true means
// both
// references
// point to
// the same
// object
System.out.println("Contexts are the same? " + isEqual);
}
}
}

</source>

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