opennlp.tools.coref.resolver.SingletonNonReferentialResolver Maven / Gradle / Ivy
/*
* 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;
}
public void train() throws IOException {
if (!trained) {
super.train();
trained = true;
}
}
}