/*
* Encog(tm) Core v3.4 - Java Version
* http://www.heatonresearch.com/encog/
* https://github.com/encog/encog-java-core
* Copyright 2008-2016 Heaton Research, 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.
*
* For more information on Heaton Research copyrights, licenses
* and trademarks visit:
* http://www.heatonresearch.com/copyright
*/
package org.encog.ml.world;
import org.encog.util.Format;
public class SuccessorState implements Comparable<SuccessorState> {
private final State state;
private final double probability;
private final long serialNumber;
private static long serialCounter;
public SuccessorState(State state, double probability) {
super();
if( state==null ) {
throw new WorldError("Can't create null successor state");
}
this.state = state;
this.probability = probability;
synchronized(SuccessorState.class) {
this.serialNumber = serialCounter++;
}
}
/**
* @return the state
*/
public State getState() {
return state;
}
/**
* @return the probability
*/
public double getProbability() {
return probability;
}
@Override
public int compareTo(SuccessorState o) {
if( o.getProbability()==this.getProbability()) {
return o.serialNumber<this.serialNumber?1:-1;
}
if( o.getProbability()<this.getProbability())
return 1;
return -1;
}
public String toString() {
StringBuilder result = new StringBuilder();
result.append("[SuccessorState: state=");
result.append(this.state.toString());
result.append(", prob=");
result.append(Format.formatPercent(this.probability));
result.append("]");
return result.toString();
}
}