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 HeaderElement} objects. 34 * 35 * @since 4.0 36 */ 37 public interface HeaderElementIterator extends Iterator<Object> { 38 39 /** 40 * Indicates whether there is another header element in this 41 * iteration. 42 * 43 * @return {@code true} if there is another header element, 44 * {@code false} otherwise 45 */ 46 @Override 47 boolean hasNext(); 48 49 /** 50 * Obtains the next header element from this iteration. 51 * This method should only be called while {@link #hasNext hasNext} 52 * is true. 53 * 54 * @return the next header element in this iteration 55 */ 56 HeaderElement nextElement(); 57 58 }