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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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package org.apache.lucene.analysis.cn.smart.hhmm;
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* SmartChineseAnalyzer internal node representation
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* Used by {@link BiSegGraph} to maximize the segmentation with the Viterbi algorithm.
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* @lucene.experimental
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class PathNode implements Comparable<PathNode> {
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public int compareTo(PathNode pn) {
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if (weight < pn.weight)
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else if (weight == pn.weight)
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* @see java.lang.Object#hashCode()
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public int hashCode() {
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result = prime * result + preNode;
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temp = Double.doubleToLongBits(weight);
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result = prime * result + (int) (temp ^ (temp >>> 32));
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* @see java.lang.Object#equals(java.lang.Object)
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public boolean equals(Object obj) {
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if (getClass() != obj.getClass())
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PathNode other = (PathNode) obj;
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if (preNode != other.preNode)
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if (Double.doubleToLongBits(weight) != Double
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.doubleToLongBits(other.weight))