/*
 * Bytecode Analysis Framework
 * Copyright (C) 2005, University of Maryland
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package edu.umd.cs.findbugs.ba.npe;

import edu.umd.cs.findbugs.ba.interproc.MethodPropertyDatabase;
import edu.umd.cs.findbugs.ba.interproc.PropertyDatabaseFormatException;

/**
 * Method property database storing which method parameters might
 * be unconditionally dereferenced.
 * 
 * @author David Hovemeyer
 */
public class ParameterNullnessPropertyDatabase extends MethodPropertyDatabase<ParameterNullnessProperty> {

	/* (non-Javadoc)
	 * @see edu.umd.cs.findbugs.ba.interproc.MethodPropertyDatabase#decodeProperty(java.lang.String)
	 */

	@Override
		 protected ParameterNullnessProperty decodeProperty(String propStr)
			throws PropertyDatabaseFormatException {
		try {
			int unconditionalDerefSet = Integer.parseInt(propStr);
			ParameterNullnessProperty prop = new ParameterNullnessProperty();
			prop.setNonNullParamSet(unconditionalDerefSet);
			return prop;
		} catch (NumberFormatException e) {
			throw new PropertyDatabaseFormatException("Invalid unconditional deref param set: " + propStr);
		}
	}

	/* (non-Javadoc)
	 * @see edu.umd.cs.findbugs.ba.interproc.MethodPropertyDatabase#encodeProperty(Property)
	 */

	@Override
		 protected String encodeProperty(ParameterNullnessProperty property) {
		return String.valueOf(property.getNonNullParamSet());
	}

}
