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.james.mailbox.extractor; import java.util.List; import java.util.Map; import java.util.Objects; import java.util.Optional; import com.google.common.collect.ImmutableMap; public class ParsedContent { private final Optional<String> textualContent; private final Map<String, List<String>> metadata; public ParsedContent(Optional<String> textualContent, Map<String, List<String>> metadata) { this.textualContent = textualContent; this.metadata = metadata; } public Optional<String> getTextualContent() { return textualContent; } public Map<String, List<String>> getMetadata() { return metadata; } public static ParsedContent empty() { return new ParsedContent(Optional.empty(), ImmutableMap.of()); } @Override public final boolean equals(Object o) { if (o instanceof ParsedContent) { ParsedContent that = (ParsedContent) o; return Objects.equals(this.textualContent, that.textualContent) && Objects.equals(this.metadata, that.metadata); } return false; } @Override public final int hashCode() { return Objects.hash(textualContent, metadata); } }