content: /*
   * 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.
   */
  
  package mf.org.apache.xerces.impl.xs.util;
  
  import java.util.AbstractList;
  
  import mf.org.apache.xerces.xs.ShortList;
  import mf.org.apache.xerces.xs.XSException;
  
  /**
   * Contains a list of shorts.
   *
   * @author Sandy Gao, IBM
   * @version $Id: ShortListImpl.java 725840 2008-12-11 22:19:06Z mrglavas $
   * @xerces.internal
   */
  public final class ShortListImpl extends AbstractList implements ShortList {
  
      /**
       * An immutable empty list.
       */
      public static final ShortListImpl EMPTY_LIST = new ShortListImpl(new short[0], 0);
  
      // The array to hold all data
      private final short[] fArray;
      // Number of elements in this list
      private final int fLength;
  
      /**
       * Construct an XSObjectList implementation
       *
       * @param array  the data array
       * @param length the number of elements
       */
      public ShortListImpl(short[] array, int length) {
          fArray = array;
          fLength = length;
      }
  
      /**
       * The number of <code>Objects</code> in the list. The range of valid
       * child node indices is 0 to <code>length-1</code> inclusive.
       */
      @Override
      public int getLength() {
          return fLength;
      }
  
      /**
       * Checks if the <code>unsigned short</code> <code>item</code> is a
       * member of this list.
       *
       * @param item <code>unsigned short</code> whose presence in this list
       *             is to be tested.
       * @return True if this list contains the <code>unsigned short</code>
       * <code>item</code>.
       */
      @Override
      public boolean contains(short item) {
          for (int i = 0; i < fLength; i++) {
              if (fArray[i] == item) {
                  return true;
              }
          }
          return false;
      }
  
      @Override
      public short item(int index) throws XSException {
          if (index < 0 || index >= fLength) {
              throw new XSException(XSException.INDEX_SIZE_ERR, null);
          }
          return fArray[index];
      }
  
      @Override
      public boolean equals(Object obj) {
          if (obj == null || !(obj instanceof ShortList)) {
              return false;
          }
          ShortList rhs = (ShortList) obj;
  
          if (fLength != rhs.getLength()) {
              return false;
          }
          for (int i = 0; i < fLength; ++i) {
              if (fArray[i] != rhs.item(i)) {
                  return false;
              }
          }
          return true;
      }
      
      /*
       * List methods
       */
  
      @Override
      public Object get(int index) {
          if (index >= 0 && index < fLength) {
              return new Short(fArray[index]);
          }
          throw new IndexOutOfBoundsException("Index: " + index);
      }
  
      @Override
      public int size() {
          return getLength();
      }
  
  } // class ShortListImpl
  