Java tutorial
/* * 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.index; import java.io.IOException; import java.util.Objects; import org.apache.lucene.store.DataInput; /** * This exception is thrown when Lucene detects * an index that is newer than this Lucene version. */ public class IndexFormatTooNewException extends IOException { private final String resourceDescription; private final int version; private final int minVersion; private final int maxVersion; /** Creates an {@code IndexFormatTooNewException} * * @param resourceDescription describes the file that was too new * @param version the version of the file that was too new * @param minVersion the minimum version accepted * @param maxVersion the maximum version accepted * * @lucene.internal */ public IndexFormatTooNewException(String resourceDescription, int version, int minVersion, int maxVersion) { super("Format version is not supported (resource " + resourceDescription + "): " + version + " (needs to be between " + minVersion + " and " + maxVersion + ")"); this.resourceDescription = resourceDescription; this.version = version; this.minVersion = minVersion; this.maxVersion = maxVersion; } /** Creates an {@code IndexFormatTooNewException} * * @param in the open file that's too new * @param version the version of the file that was too new * @param minVersion the minimum version accepted * @param maxVersion the maximum version accepted * * @lucene.internal */ public IndexFormatTooNewException(DataInput in, int version, int minVersion, int maxVersion) { this(Objects.toString(in), version, minVersion, maxVersion); } /** * Returns a description of the file that was too new */ public String getResourceDescription() { return resourceDescription; } /** * Returns the version of the file that was too new */ public int getVersion() { return version; } /** * Returns the maximum version accepted */ public int getMaxVersion() { return maxVersion; } /** * Returns the minimum version accepted */ public int getMinVersion() { return minVersion; } }