001/* 002 * ==================================================================== 003 * Licensed to the Apache Software Foundation (ASF) under one 004 * or more contributor license agreements. See the NOTICE file 005 * distributed with this work for additional information 006 * regarding copyright ownership. The ASF licenses this file 007 * to you under the Apache License, Version 2.0 (the 008 * "License"); you may not use this file except in compliance 009 * with the License. You may obtain a copy of the License at 010 * 011 * http://www.apache.org/licenses/LICENSE-2.0 012 * 013 * Unless required by applicable law or agreed to in writing, 014 * software distributed under the License is distributed on an 015 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 016 * KIND, either express or implied. See the License for the 017 * specific language governing permissions and limitations 018 * under the License. 019 * ==================================================================== 020 * 021 * This software consists of voluntary contributions made by many 022 * individuals on behalf of the Apache Software Foundation. For more 023 * information on the Apache Software Foundation, please see 024 * <http://www.apache.org/>. 025 * 026 */ 027 028package org.apache.http; 029 030import java.util.Iterator; 031 032/** 033 * A type-safe iterator for {@link Header} objects. 034 * 035 * @since 4.0 036 */ 037public interface HeaderIterator extends Iterator<Object> { 038 039 /** 040 * Indicates whether there is another header in this iteration. 041 * 042 * @return {@code true} if there is another header, 043 * {@code false} otherwise 044 */ 045 @Override 046 boolean hasNext(); 047 048 /** 049 * Obtains the next header from this iteration. 050 * This method should only be called while {@link #hasNext hasNext} 051 * is true. 052 * 053 * @return the next header in this iteration 054 */ 055 Header nextHeader(); 056 057}