/*******************************************************************************
*   Copyright 2015 Analog Devices, Inc.
*
*   Licensed under the Apache License, Version 2.0 (the "License");
*   you may not use this file except in compliance with the License.
*   You may obtain a copy of the License at
*
*       http://www.apache.org/licenses/LICENSE-2.0
*
*   Unless required by applicable law or agreed to in writing, software
*   distributed under the License is distributed on an "AS IS" BASIS,
*   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*   See the License for the specific language governing permissions and
*   limitations under the License.
********************************************************************************/

package com.analog.lyric.dimple.solvers.particleBP;

import com.analog.lyric.dimple.solvers.core.SDiscreteWeightEdge;
import com.analog.lyric.dimple.solvers.core.parameterizedMessages.DiscreteWeightMessage;


/**
 * 
 * @since 0.08
 * @author Christopher Barber
 */
public class ParticleBPRealEdge extends SDiscreteWeightEdge
{
	/*-------
	 * State
	 */

	/*--------------
	 * Construction
	 */
	
	ParticleBPRealEdge(ParticleBPReal svar)
	{
		super(svar.getNumParticles());
	}

	/*-----------------
	 * Package methods
	 */
	
	final int numParticles()
	{
		return varToFactorMsg.size();
	}

	void resize(int newNumParticles)
	{
		if (newNumParticles != numParticles())
		{
			varToFactorMsg = new DiscreteWeightMessage(newNumParticles);
			factorToVarMsg = new DiscreteWeightMessage(newNumParticles);
		}
	}
}
