/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.lucene.analysis.cn.smart.hhmm;
/**
* SmartChineseAnalyzer internal node representation
* <p>
* Used by {@link BiSegGraph} to maximize the segmentation with the Viterbi algorithm.
* </p>
* @lucene.experimental
*/
class PathNode implements Comparable<PathNode> {
public double weight;
public int preNode;
public int compareTo(PathNode pn) {
if (weight < pn.weight)
return -1;
else if (weight == pn.weight)
return 0;
else
return 1;
}
/**
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + preNode;
long temp;
temp = Double.doubleToLongBits(weight);
result = prime * result + (int) (temp ^ (temp >>> 32));
return result;
}
/**
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
PathNode other = (PathNode) obj;
if (preNode != other.preNode)
return false;
if (Double.doubleToLongBits(weight) != Double
.doubleToLongBits(other.weight))
return false;
return true;
}
}