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Java > Open Source Codes > com > sun > org > apache > xerces > internal > impl > xs > util > ShortListImpl


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5  * Copyright (c) 2002,2003 The Apache Software Foundation. All rights
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57
58 package com.sun.org.apache.xerces.internal.impl.xs.util;
59
60 import com.sun.org.apache.xerces.internal.xs.ShortList;
61 import com.sun.org.apache.xerces.internal.xs.XSException;
62
63 /**
64  * Containts a list of Object's.
65  *
66  * @author Sandy Gao, IBM
67  *
68  * @version $Id: ShortListImpl.java,v 1.1 2003/11/12 23:17:34 sandygao Exp $
69  */
70 public class ShortListImpl implements ShortList {
71
72     // The array to hold all data
73 private short[] fArray = null;
74     // Number of elements in this list
75 private int fLength = 0;
76
77     /**
78      * Construct an XSObjectList implementation
79      *
80      * @param array the data array
81      * @param length the number of elements
82      */
83     public ShortListImpl(short[] array, int length) {
84         fArray = array;
85         fLength = length;
86     }
87
88     /**
89      * The number of <code>Objects</code> in the list. The range of valid
90      * child node indices is 0 to <code>length-1</code> inclusive.
91      */
92     public int getLength() {
93         return fLength;
94     }
95
96     /**
97      * Checks if the <code>unsigned short</code> <code>item</code> is a
98      * member of this list.
99      * @param item <code>unsigned short</code> whose presence in this list
100      * is to be tested.
101      * @return True if this list contains the <code>unsigned short</code>
102      * <code>item</code>.
103      */
104     public boolean contains(short item) {
105         for (int i = 0; i < fLength; i++) {
106             if (fArray[i] == item)
107                 return true;
108         }
109         return false;
110     }
111     
112     public short item(int index) throws XSException {
113         if (index < 0 || index >= fLength)
114             throw new XSException(XSException.INDEX_SIZE_ERR, null);
115         return fArray[index];
116     }
117
118 } // class XSParticle
119
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