| /* |
| * 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.opennlp.utils.cfg; |
| |
| import java.util.Arrays; |
| |
| /** |
| * A rule for context free grammars |
| */ |
| public class Rule implements Comparable<Rule> { |
| private final String entry; |
| private final String[] expansion; |
| |
| public Rule(String entry, String... expansion) { |
| this.entry = entry; |
| this.expansion = expansion; |
| } |
| |
| public String getEntry() { |
| return entry; |
| } |
| |
| public String[] getExpansion() { |
| return expansion; |
| } |
| |
| @Override |
| public int compareTo(Rule o) { |
| int c = entry.compareTo(o.getEntry()); |
| return c != 0 ? c : Arrays.toString(expansion).compareTo(Arrays.toString(o.getExpansion())); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) return true; |
| if (o == null || getClass() != o.getClass()) return false; |
| |
| Rule rule = (Rule) o; |
| |
| return !(entry != null ? !entry.equals(rule.entry) : rule.entry != null) && Arrays.equals(expansion, rule.expansion); |
| |
| } |
| |
| @Override |
| public int hashCode() { |
| int result = entry != null ? entry.hashCode() : 0; |
| result = 31 * result + (expansion != null ? Arrays.hashCode(expansion) : 0); |
| return result; |
| } |
| |
| @Override |
| public String toString() { |
| return "{" + |
| "'" + entry + '\'' + |
| " -> " + Arrays.toString(expansion) + |
| '}'; |
| } |
| } |