1 /* 2 * ==================================================================== 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * ==================================================================== 20 * 21 * This software consists of voluntary contributions made by many 22 * individuals on behalf of the Apache Software Foundation. For more 23 * information on the Apache Software Foundation, please see 24 * <http://www.apache.org/>. 25 * 26 */ 27 28 package org.apache.http; 29 30 import java.util.Iterator; 31 32 /** 33 * A type-safe iterator for {@link Header} objects. 34 * 35 * @since 4.0 36 */ 37 public interface HeaderIterator extends Iterator<Object> { 38 39 /** 40 * Indicates whether there is another header in this iteration. 41 * 42 * @return {@code true} if there is another header, 43 * {@code false} otherwise 44 */ 45 @Override 46 boolean hasNext(); 47 48 /** 49 * Obtains the next header from this iteration. 50 * This method should only be called while {@link #hasNext hasNext} 51 * is true. 52 * 53 * @return the next header in this iteration 54 */ 55 Header nextHeader(); 56 57 }