| /* |
| * 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 opennlp.tools.coref.resolver; |
| |
| import java.io.IOException; |
| |
| /** |
| * This class allows you to share a single instance of a non-referential resolver |
| * among several resolvers. |
| */ |
| public class SingletonNonReferentialResolver extends DefaultNonReferentialResolver { |
| |
| private static SingletonNonReferentialResolver resolver; |
| private static boolean trained; |
| |
| private SingletonNonReferentialResolver(String projectName, ResolverMode mode) throws IOException { |
| super(projectName, "nonref", mode); |
| } |
| |
| public static SingletonNonReferentialResolver getInstance(String modelName, ResolverMode mode) |
| throws IOException { |
| if (resolver == null) { |
| resolver = new SingletonNonReferentialResolver(modelName, mode); |
| } |
| return resolver; |
| } |
| |
| |
| @Override |
| public void train() throws IOException { |
| if (!trained) { |
| super.train(); |
| trained = true; |
| } |
| } |
| } |