bprocessor-commit

[Michael L. <he...@us...>]

Update of /cvsroot/bprocessor/model/src/net/sourceforge/bprocessor/model
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv19293/src/net/sourceforge/bprocessor/model

Added Files:
	Selection.java 
Log Message:
Added a Selection class to handle the selection

--- NEW FILE: Selection.java ---
//---------------------------------------------------------------------------------
// $Id: Selection.java,v 1.1 2006/01/06 09:59:23 henryml Exp $
//
// Copyright (c) 2005      The BProcessor Team (http://bprocessor.sourceforge.net) 
// Released under the Lesser GNU Public License v2.1
//---------------------------------------------------------------------------------

package net.sourceforge.bprocessor.model;

import java.util.Collection;
import java.util.HashSet;

/**
 * The represents a collection of objects.
 * The primary collection are shared for all elements
 * in the userinterface.
 */
public class Selection {
  /** The collection of objects */
  private Collection selection;
  
  /** The primary selection */
  private static Selection primary = new Selection();
  
  /**
   * Return the primary selection
   * @return The primary selection
   */
  public static Selection primary() {
    return primary;
  }
  
  /**
   * Constructor for Selection
   */
  public Selection() {
    super();
    selection = new HashSet();
  }
  
  /**
   * Add an object to the Selection
   * @param object The object
   */
  public void add(Object object) {
    selection.add(object);
  }
  
  /**
   * Remove and object from the Selection
   * @param object The object
   */
  public void remove(Object object) {
    selection.remove(object);
  }
  
  /**
   * Clear the selection
   */
  public void clear() {
    selection.clear();
  }
  
  /**
   * Set the selection
   * @param object The object
   */
  public void set(Object object) {
    clear();
    add(object);
  }
  
  
}