Java by API/java.beans.beancontext/BeanContextChildSupport

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BeanContextChildSupport.getBeanContext()

   <source lang="java">

/*

* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
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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);
   }
 }

}

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