Java Doc for AbstractGTRoot.java in  » GIS » GeoTools-2.4.1 » org » geotools » event » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » GIS » GeoTools 2.4.1 » org.geotools.event 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.geotools.event.AbstractGTComponent
      org.geotools.event.AbstractGTRoot

All known Subclasses:   org.geotools.styling.StyledLayerDescriptorImpl,
AbstractGTRoot
abstract public class AbstractGTRoot extends AbstractGTComponent implements GTRoot(Code)
Provides basic StyleEvent notification, may be used in conjuction with StyleList during event handling.

This class has package scope to prevent user code mistaking it for something important. It is only used to assist in the construction of this one implementation of StyleEvents. Basically this is NOT API :-)


since:
   2.2.M3


Field Summary
 GTNotenotification
    


Method Summary
public synchronized  voidaddListener(GTListener listener)
     Listens to changes in the Style content.
public  voidchanged(GTDelta childDelta)
     Used to pass on "We changed" notification from children.
protected  Objectclone()
    
protected synchronized  voidfire(GTEvent event)
     Provides notification of daring do (and undo) in style space.
protected synchronized  voidfire(GTDelta delta)
    
protected  voidfireChanged()
     Simple notification that we changed.
final protected  voidfireChildChanged(String childName, Object child, Object oldValue)
     Create a child delta and send it off.
protected  booleanhasListeners()
    
public synchronized  voidremoveListener(GTListener listener)
    
public  voidremoved(GTDelta childDelta)
     Used to pass on "something is about to change" notification from children.

Field Detail
notification
GTNote notification(Code)





Method Detail
addListener
public synchronized void addListener(GTListener listener)(Code)
Listens to changes in the Style content.

Changes are provided:

  • Before: deletion
  • After: modification

Since the Style data structure can be vast and complicated a trail of breadcrumbs (a delta) is provided to help find your way to the change.


Parameters:
  listener -



changed
public void changed(GTDelta childDelta)(Code)
Used to pass on "We changed" notification from children.
Parameters:
  childDelta - object containing change information



clone
protected Object clone() throws CloneNotSupportedException(Code)



fire
protected synchronized void fire(GTEvent event)(Code)
Provides notification of daring do (and undo) in style space.
Parameters:
  event - Event describing notification



fire
protected synchronized void fire(GTDelta delta)(Code)
Issue a change event w/ POST_CHANGE
Parameters:
  delta - Used to quickly fire off a child delta



fireChanged
protected void fireChanged()(Code)
Simple notification that we changed.

Change will be passed on to parent.changed( delta ).




fireChildChanged
final protected void fireChildChanged(String childName, Object child, Object oldValue)(Code)
Create a child delta and send it off.

Use this for changes to simple types like int and Color.


Parameters:
  childName - used to the child (often bean propertyName or map key)
Parameters:
  child -
Parameters:
  oldValue - DOCUMENT ME!



hasListeners
protected boolean hasListeners()(Code)



removeListener
public synchronized void removeListener(GTListener listener)(Code)
Remove a style listener
Parameters:
  listener - Listen to notifications



removed
public void removed(GTDelta childDelta)(Code)
Used to pass on "something is about to change" notification from children.
Parameters:
  childDelta - object containing change information



Fields inherited from org.geotools.event.AbstractGTComponent
protected GTNote notification(Code)(Java Doc)

Methods inherited from org.geotools.event.AbstractGTComponent
public void changed(GTDelta childDelta)(Code)(Java Doc)
protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
protected void fireChanged()(Code)(Java Doc)
protected synchronized void fireChildChanged(String name, Object child, Object oldValue)(Code)(Java Doc)
public GTNote getNote()(Code)(Java Doc)
public GTComponent getParent()(Code)(Java Doc)
public void removed(GTDelta childDelta)(Code)(Java Doc)
public void setNote(GTNote container)(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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