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org.eclipse.jface.viewers.deferred
Class SetModel

java.lang.Object
  

org.eclipse.jface.viewers.deferred.AbstractConcurrentModel
      
org.eclipse.jface.viewers.deferred.SetModel

All Implemented Interfaces:

IConcurrentModel

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public class SetModel
extends 
AbstractConcurrentModel

Trivial implementation of an IConcurrentModel. Implements an unordered set of elements that fires off change notifications whenever elements are added or removed from the set. All notifications are sent synchronously.

Since:

3.1

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Constructor Summary
SetModel ()

 

Method Summary
void	addAll ( Collection toAdd)           Adds the given elements to the set.
void	addAll ( Object[] toAdd)           Adds the given elements to the set
void	changeAll ( Object[] changed)           Fires a change notification for all elements in the given array
void	clear ()           Empties the set
Object[]	getElements ()           Return the contents of the model.
void	removeAll ( Object[] toRemove)           Removes all of the given elements from the set.
void	requestUpdate ( IConcurrentModelListener listener)           Requests that the receiver to call the given listener's setContents(...)
void	set ( Object[] newContents)           Sets the contents to the given array of elements

 

Methods inherited from class org.eclipse.jface.viewers.deferred. AbstractConcurrentModel
addListener, fireAdd, fireRemove, fireUpdate, getListeners, removeListener

 

Methods inherited from class java.lang. Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Constructor Detail

SetModel

public SetModel()

Method Detail

getElements

public 
Object[] getElements()

Return the contents of the model.

Returns:

the array of elements

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set

public void set(
Object[] newContents)

Sets the contents to the given array of elements

Parameters:

newContents - new contents of this set

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clear

public void clear()

Empties the set

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addAll

public void addAll(
Object[] toAdd)

Adds the given elements to the set

Parameters:

toAdd - elements to add

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addAll

public void addAll(
Collection toAdd)

Adds the given elements to the set. Duplicate elements are ignored.

Parameters:

toAdd - elements to add

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changeAll

public void changeAll(
Object[] changed)

Fires a change notification for all elements in the given array

Parameters:

changed - array of elements that have changed

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removeAll

public void removeAll(
Object[] toRemove)

Removes all of the given elements from the set.

Parameters:

toRemove - elements to remove

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requestUpdate

public void requestUpdate(
IConcurrentModelListener listener)

Description copied from interface: IConcurrentModel

Requests that the receiver to call the given listener's setContents(...) method at its earliest convenience. The receiver is allowed to compute the elements asynchronously. That is, it can compute the result in a background thread and call setContents(...) once the result is ready. If the result is too large to return in one batch, it can call setContents with an empty array followed by a sequence of adds.

Has no effect if an update is already queued for an identical listener.

Parameters:

listener - listener whose setContents method should be called. The listener must have been previously registered with addListener.

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