org.eclipse.jetty.util.component
Class Container

java.lang.Object
  extended by org.eclipse.jetty.util.component.Container

public class Container
extends Object

Container. This class allows a containment events to be generated from update methods. The style of usage is:

   public void setFoo(Foo foo)
   {
       getContainer().update(this,this.foo,foo,"foo");
       this.foo=foo;
   }
   
   public void setBars(Bar[] bars)
   {
       getContainer().update(this,this.bars,bars,"bar");
       this.bars=bars;
   }
 


Nested Class Summary
static interface Container.Listener
          Listener.
static class Container.Relationship
          A Container event.
 
Constructor Summary
Container()
           
 
Method Summary
 void addBean(Object obj)
           
 void addEventListener(Container.Listener listener)
           
 void removeBean(Object obj)
           
 void removeEventListener(Container.Listener listener)
           
 void update(Object parent, Object[] oldChildren, Object[] children, String relationship)
          Update multiple parent to child relationship.
 void update(Object parent, Object[] oldChildren, Object[] children, String relationship, boolean addRemove)
          Update multiple parent to child relationship.
 void update(Object parent, Object oldChild, Object child, String relationship)
          Update single parent to child relationship.
 void update(Object parent, Object oldChild, Object child, String relationship, boolean addRemove)
          Update single parent to child relationship.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Container

public Container()
Method Detail

addEventListener

public void addEventListener(Container.Listener listener)

removeEventListener

public void removeEventListener(Container.Listener listener)

update

public void update(Object parent,
                   Object oldChild,
                   Object child,
                   String relationship)
Update single parent to child relationship.

Parameters:
parent - The parent of the child.
oldChild - The previous value of the child. If this is non null and differs from child, then a remove event is generated.
child - The current child. If this is non null and differs from oldChild, then an add event is generated.
relationship - The name of the relationship

update

public void update(Object parent,
                   Object oldChild,
                   Object child,
                   String relationship,
                   boolean addRemove)
Update single parent to child relationship.

Parameters:
parent - The parent of the child.
oldChild - The previous value of the child. If this is non null and differs from child, then a remove event is generated.
child - The current child. If this is non null and differs from oldChild, then an add event is generated.
relationship - The name of the relationship
addRemove - If true add/remove is called for the new/old children as well as the relationships

update

public void update(Object parent,
                   Object[] oldChildren,
                   Object[] children,
                   String relationship)
Update multiple parent to child relationship.

Parameters:
parent - The parent of the child.
oldChildren - The previous array of children. A remove event is generated for any child in this array but not in the children array. This array is modified and children that remain in the new children array are nulled out of the old children array.
children - The current array of children. An add event is generated for any child in this array but not in the oldChildren array.
relationship - The name of the relationship

update

public void update(Object parent,
                   Object[] oldChildren,
                   Object[] children,
                   String relationship,
                   boolean addRemove)
Update multiple parent to child relationship.

Parameters:
parent - The parent of the child.
oldChildren - The previous array of children. A remove event is generated for any child in this array but not in the children array. This array is modified and children that remain in the new children array are nulled out of the old children array.
children - The current array of children. An add event is generated for any child in this array but not in the oldChildren array.
relationship - The name of the relationship
addRemove - If true add/remove is called for the new/old children as well as the relationships

addBean

public void addBean(Object obj)

removeBean

public void removeBean(Object obj)


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