/*******************************************************************************
*   Copyright 2012 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.core.kbest;

public class KBestFactorTableEngine extends KBestFactorEngine 
{
	public KBestFactorTableEngine(IKBestFactor f) 
	{
		super(f);
	}
	
	/*
	 * retrieves weights from the factor table
	 */
	protected double getFactorFunctionValueForIndices(int [] inputIndices, Object [][] domains)
	{

		int index = getIKBestFactor().getFactorTable().sparseIndexFromIndices(inputIndices);
		if (index < 0)
			return Double.POSITIVE_INFINITY;
		else
			return getIKBestFactor().getFactorTableValue(index);
	}
}
