    1   /*
    2    * Copyright 1999-2004 The Apache Software Foundation
    3    *
    4    * Licensed under the Apache License, Version 2.0 (the "License");
    5    * you may not use this file except in compliance with the License.
    6    * You may obtain a copy of the License at
    7    *
    8    *     http://www.apache.org/licenses/LICENSE-2.0
    9    *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16  package org.apache.commons.jxpath.ri.model.beans;
    17
    18  import org.apache.commons.jxpath.ri.QName;
    19  import org.apache.commons.jxpath.ri.model.NodePointer;
    20
    21  /***
    22   * An iterator of attributes of a JavaBean. Returns bean properties as
    23   * well as the "xml:lang" attribute.
    24   *
    25   * @author Dmitri Plotnikov
    26   * @version $Revision: 1.8 $ $Date: 2004/02/29 14:17:41 $
    27   */
    28  public class BeanAttributeIterator extends PropertyIterator {
    29      private NodePointer parent;
    30      private int position = 0;
    31      private boolean includeXmlLang;
    32
    33      public BeanAttributeIterator(PropertyOwnerPointer parent, QName name) {
    34          super(
    35              parent,
    36              (name.getPrefix() == null
    37                  && (name.getName() == null || name.getName().equals("*")))
    38                  ? null
    39                  : name.toString(),
    40              false,
    41              null);
    42          this.parent = parent;
    43          includeXmlLang =
    44              (name.getPrefix() != null && name.getPrefix().equals("xml"))
    45                  && (name.getName().equals("lang")
    46                  || name.getName().equals("*"));
    47      }
    48
    49      public NodePointer getNodePointer() {
    50          if (includeXmlLang && position == 1) {
    51              return new LangAttributePointer(parent);
    52          }
    53          else {
    54              return super.getNodePointer();
    55          }
    56      }
    57
    58      public int getPosition() {
    59          return position;
    60      }
    61
    62      public boolean setPosition(int position) {
    63          this.position = position;
    64          if (includeXmlLang) {
    65              if (position == 1) {
    66                  return true;
    67              }
    68              else {
    69                  return super.setPosition(position - 1);
    70              }
    71          }
    72          else {
    73              this.position = position;
    74              return super.setPosition(position);
    75          }
    76      }
    77  }