MapSelectionState.java

package com.opendoorlogistics.studio.components.map;

import gnu.trove.set.hash.TLongHashSet;

/**
 * Thread-safe class storing the selection state
 * @author Phil
 *
 */
public class MapSelectionState {
	private final TLongHashSet selectedGlobalRowIds = new TLongHashSet();
	
	public synchronized long [] copyIds(){
		return selectedGlobalRowIds.toArray();
	}
	
	public synchronized TLongHashSet copySet(){
		return new TLongHashSet(selectedGlobalRowIds);
	}
	
	public synchronized void clear(){
		set(null);
	}
	
	public synchronized void add(long id){
		selectedGlobalRowIds.add(id);
	}
	
	/**
	 * Set the ids 
	 * @param ids
	 * @return True if the ids changed.
	 */
	public synchronized boolean set(long [] ids){
		TLongHashSet oldSet = new TLongHashSet(selectedGlobalRowIds);
		
		selectedGlobalRowIds.clear();
		if(ids!=null){
			selectedGlobalRowIds.addAll(ids);			
		}
		
		return !oldSet.equals(selectedGlobalRowIds);
	}
	
	public synchronized boolean contains(long id){
		return selectedGlobalRowIds.contains(id);
	}
	
	public synchronized boolean equals(TLongHashSet set){
		return selectedGlobalRowIds.equals(set);
	}
}