content: /*
   *  This file is part of AndroidIDE.
   *
   *  AndroidIDE is free software: you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation, either version 3 of the License, or
   *  (at your option) any later version.
   *
   *  AndroidIDE is distributed in the hope that it will be useful,
   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *  GNU General Public License for more details.
   *
   *  You should have received a copy of the GNU General Public License
   *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
   */
  
  /*
   * reserved comment block
   * DO NOT REMOVE OR ALTER!
   */
  /*
   * Copyright 2000-2002,2004 The Apache Software Foundation.
   *
   * Licensed 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 jaxp.sun.org.apache.xerces.internal.dom;
  
  import org.w3c.dom.Node;
  
  /**
   * ChildNode inherits from NodeImpl and adds the capability of being a child by
   * having references to its previous and next siblings.
   *
   * @xerces.internal
   *
   */
  public abstract class ChildNode
      extends NodeImpl {
  
      //
      // Constants
      //
  
      /** Serialization version. */
      static final long serialVersionUID = -6112455738802414002L;
  
      transient StringBuffer fBufferStr = null;
  
      //
      // Data
      //
  
      /** Previous sibling. */
      protected ChildNode previousSibling;
  
      /** Next sibling. */
      protected ChildNode nextSibling;
  
      //
      // Constructors
      //
  
      /**
       * No public constructor; only subclasses of Node should be
       * instantiated, and those normally via a Document's factory methods
       * <p>
       * Every Node knows what Document it belongs to.
       */
      protected ChildNode(CoreDocumentImpl ownerDocument) {
          super(ownerDocument);
      } // <init>(CoreDocumentImpl)
  
      /** Constructor for serialization. */
      public ChildNode() {}
  
      //
      // Node methods
      //
  
      /**
       * Returns a duplicate of a given node. You can consider this a
       * generic "copy constructor" for nodes. The newly returned object should
       * be completely independent of the source object's subtree, so changes
       * in one after the clone has been made will not affect the other.
       * <P>
       * Note: since we never have any children deep is meaningless here,
       * ParentNode overrides this behavior.
       * @see ParentNode
       *
       * <p>
       * Example: Cloning a Text node will copy both the node and the text it
       * contains.
       * <p>
       * Example: Cloning something that has children -- Element or Attr, for
       * example -- will _not_ clone those children unless a "deep clone"
       * has been requested. A shallow clone of an Attr node will yield an
       * empty Attr of the same name.
       * <p>
       * NOTE: Clones will always be read/write, even if the node being cloned
       * is read-only, to permit applications using only the DOM API to obtain
       * editable copies of locked portions of the tree.
       */
      public Node cloneNode(boolean deep) {
  
          ChildNode newnode = (ChildNode) super.cloneNode(deep);
  
          // Need to break the association w/ original kids
          newnode.previousSibling = null;
          newnode.nextSibling     = null;
          newnode.isFirstChild(false);
  
          return newnode;
  
      } // cloneNode(boolean):Node
  
      /**
       * Returns the parent node of this node
       */
      public Node getParentNode() {
          // if we have an owner, ownerNode is our parent, otherwise it's
          // our ownerDocument and we don't have a parent
          return isOwned() ? ownerNode : null;
      }
  
      /*
       * same as above but returns internal type
       */
      final NodeImpl parentNode() {
          // if we have an owner, ownerNode is our parent, otherwise it's
          // our ownerDocument and we don't have a parent
          return isOwned() ? ownerNode : null;
      }
  
      /** The next child of this node's parent, or null if none */
      public Node getNextSibling() {
          return nextSibling;
      }
  
      /** The previous child of this node's parent, or null if none */
      public Node getPreviousSibling() {
          // if we are the firstChild, previousSibling actually refers to our
          // parent's lastChild, but we hide that
          return isFirstChild() ? null : previousSibling;
      }
  
      /*
       * same as above but returns internal type
       */
      final ChildNode previousSibling() {
          // if we are the firstChild, previousSibling actually refers to our
          // parent's lastChild, but we hide that
          return isFirstChild() ? null : previousSibling;
      }
  
  } // class ChildNode
  