Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * 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.
 */

import java.util.Iterator;

import org.w3c.dom.Element;
import org.w3c.dom.Node;

public class Main {
    public static Iterable<Element> childrenElementsOf(final Node parent) {
        return new Iterable<Element>() {

            public Iterator<Element> iterator() {
                return new ElementIterator();
            }

            class ElementIterator implements Iterator<Element> {
                private Node continueFrom;
                private Element curNode;

                ElementIterator() {
                    continueFrom = parent.getFirstChild();
                    fetch();
                }

                public boolean hasNext() {
                    return curNode != null;
                }

                public Element next() {
                    Element res = curNode;
                    fetch();
                    return res;
                }

                public void remove() {
                    throw new UnsupportedOperationException("remove");
                }

                private void fetch() {
                    while (!(continueFrom == null || continueFrom instanceof Element)) {
                        continueFrom = continueFrom.getNextSibling();
                    }
                    if (continueFrom != null) {
                        curNode = (Element) continueFrom;
                        continueFrom = curNode.getNextSibling();
                    } else {
                        curNode = null;
                    }
                }

            }

        };
    }
}