<HTML>
<BODY BGCOLOR="white">
<PRE>
<FONT color="green">001</FONT>    /*<a name="line.1"></a>
<FONT color="green">002</FONT>     * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a>
<FONT color="green">003</FONT>     * or more contributor license agreements. See the NOTICE file<a name="line.3"></a>
<FONT color="green">004</FONT>     * distributed with this work for additional information<a name="line.4"></a>
<FONT color="green">005</FONT>     * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a>
<FONT color="green">006</FONT>     * to you under the Apache License, Version 2.0 (the  "License");<a name="line.6"></a>
<FONT color="green">007</FONT>     * you may not use this file except in compliance with the License.<a name="line.7"></a>
<FONT color="green">008</FONT>     * You may obtain a copy of the License at<a name="line.8"></a>
<FONT color="green">009</FONT>     *<a name="line.9"></a>
<FONT color="green">010</FONT>     *     http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a>
<FONT color="green">011</FONT>     *<a name="line.11"></a>
<FONT color="green">012</FONT>     * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a>
<FONT color="green">013</FONT>     * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a>
<FONT color="green">014</FONT>     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a>
<FONT color="green">015</FONT>     * See the License for the specific language governing permissions and<a name="line.15"></a>
<FONT color="green">016</FONT>     * limitations under the License.<a name="line.16"></a>
<FONT color="green">017</FONT>     */<a name="line.17"></a>
<FONT color="green">018</FONT>    /*<a name="line.18"></a>
<FONT color="green">019</FONT>     * $Id: ObjectArray.java 468638 2006-10-28 06:52:06Z minchau $<a name="line.19"></a>
<FONT color="green">020</FONT>     */<a name="line.20"></a>
<FONT color="green">021</FONT>    package org.apache.xalan.lib.sql;<a name="line.21"></a>
<FONT color="green">022</FONT>    <a name="line.22"></a>
<FONT color="green">023</FONT>    import java.util.Vector;<a name="line.23"></a>
<FONT color="green">024</FONT>    <a name="line.24"></a>
<FONT color="green">025</FONT>    /**<a name="line.25"></a>
<FONT color="green">026</FONT>     * Provide a simple Array storage mechinsim where  native Arrays will be use as<a name="line.26"></a>
<FONT color="green">027</FONT>     * the basic storage mechinism but the Arrays will be stored as blocks.<a name="line.27"></a>
<FONT color="green">028</FONT>     * The size of the Array blocks is determine during object construction.<a name="line.28"></a>
<FONT color="green">029</FONT>     * This is intended to be a simple storage mechinsim where the storage only<a name="line.29"></a>
<FONT color="green">030</FONT>     * can grow. Array elements can not be removed, only added to.<a name="line.30"></a>
<FONT color="green">031</FONT>     */<a name="line.31"></a>
<FONT color="green">032</FONT>    public class ObjectArray<a name="line.32"></a>
<FONT color="green">033</FONT>    {<a name="line.33"></a>
<FONT color="green">034</FONT>      /**<a name="line.34"></a>
<FONT color="green">035</FONT>       */<a name="line.35"></a>
<FONT color="green">036</FONT>      private int m_minArraySize = 10;<a name="line.36"></a>
<FONT color="green">037</FONT>      /**<a name="line.37"></a>
<FONT color="green">038</FONT>       * The container of all the sub arrays<a name="line.38"></a>
<FONT color="green">039</FONT>       */<a name="line.39"></a>
<FONT color="green">040</FONT>      private Vector m_Arrays = new Vector(200);<a name="line.40"></a>
<FONT color="green">041</FONT>    <a name="line.41"></a>
<FONT color="green">042</FONT>      /**<a name="line.42"></a>
<FONT color="green">043</FONT>       * An index that porvides the Vector entry for the current Array that is<a name="line.43"></a>
<FONT color="green">044</FONT>       * being appended to.<a name="line.44"></a>
<FONT color="green">045</FONT>       */<a name="line.45"></a>
<FONT color="green">046</FONT>      private _ObjectArray m_currentArray;<a name="line.46"></a>
<FONT color="green">047</FONT>    <a name="line.47"></a>
<FONT color="green">048</FONT>    <a name="line.48"></a>
<FONT color="green">049</FONT>      /**<a name="line.49"></a>
<FONT color="green">050</FONT>       * The next offset in the current Array to append a new object<a name="line.50"></a>
<FONT color="green">051</FONT>       */<a name="line.51"></a>
<FONT color="green">052</FONT>      private int m_nextSlot;<a name="line.52"></a>
<FONT color="green">053</FONT>    <a name="line.53"></a>
<FONT color="green">054</FONT>    <a name="line.54"></a>
<FONT color="green">055</FONT>      /**<a name="line.55"></a>
<FONT color="green">056</FONT>       */<a name="line.56"></a>
<FONT color="green">057</FONT>      public ObjectArray( )<a name="line.57"></a>
<FONT color="green">058</FONT>      {<a name="line.58"></a>
<FONT color="green">059</FONT>        //<a name="line.59"></a>
<FONT color="green">060</FONT>        // Default constructor will work with a minimal fixed size<a name="line.60"></a>
<FONT color="green">061</FONT>        //<a name="line.61"></a>
<FONT color="green">062</FONT>        init(10);<a name="line.62"></a>
<FONT color="green">063</FONT>      }<a name="line.63"></a>
<FONT color="green">064</FONT>    <a name="line.64"></a>
<FONT color="green">065</FONT>      /**<a name="line.65"></a>
<FONT color="green">066</FONT>       * @param minArraySize The size of the Arrays stored in the Vector<a name="line.66"></a>
<FONT color="green">067</FONT>       */<a name="line.67"></a>
<FONT color="green">068</FONT>      public ObjectArray( final int minArraySize )<a name="line.68"></a>
<FONT color="green">069</FONT>      {<a name="line.69"></a>
<FONT color="green">070</FONT>        init(minArraySize);<a name="line.70"></a>
<FONT color="green">071</FONT>      }<a name="line.71"></a>
<FONT color="green">072</FONT>    <a name="line.72"></a>
<FONT color="green">073</FONT>      /**<a name="line.73"></a>
<FONT color="green">074</FONT>       * @param size<a name="line.74"></a>
<FONT color="green">075</FONT>       *<a name="line.75"></a>
<FONT color="green">076</FONT>       */<a name="line.76"></a>
<FONT color="green">077</FONT>      private void init( int size )<a name="line.77"></a>
<FONT color="green">078</FONT>      {<a name="line.78"></a>
<FONT color="green">079</FONT>        m_minArraySize = size;<a name="line.79"></a>
<FONT color="green">080</FONT>        m_currentArray = new _ObjectArray(m_minArraySize);<a name="line.80"></a>
<FONT color="green">081</FONT>      }<a name="line.81"></a>
<FONT color="green">082</FONT>    <a name="line.82"></a>
<FONT color="green">083</FONT>      /**<a name="line.83"></a>
<FONT color="green">084</FONT>       * @param idx Index of the Object in the Array<a name="line.84"></a>
<FONT color="green">085</FONT>       *<a name="line.85"></a>
<FONT color="green">086</FONT>       */<a name="line.86"></a>
<FONT color="green">087</FONT>      public Object getAt( final int idx )<a name="line.87"></a>
<FONT color="green">088</FONT>      {<a name="line.88"></a>
<FONT color="green">089</FONT>        int arrayIndx = idx / m_minArraySize;<a name="line.89"></a>
<FONT color="green">090</FONT>        int arrayOffset = idx - (arrayIndx * m_minArraySize);<a name="line.90"></a>
<FONT color="green">091</FONT>    <a name="line.91"></a>
<FONT color="green">092</FONT>        //<a name="line.92"></a>
<FONT color="green">093</FONT>        // If the array has been off loaded to the Vector Storage them<a name="line.93"></a>
<FONT color="green">094</FONT>        // grab it from there.<a name="line.94"></a>
<FONT color="green">095</FONT>        if (arrayIndx &lt; m_Arrays.size())<a name="line.95"></a>
<FONT color="green">096</FONT>        {<a name="line.96"></a>
<FONT color="green">097</FONT>          _ObjectArray a = (_ObjectArray)m_Arrays.elementAt(arrayIndx);<a name="line.97"></a>
<FONT color="green">098</FONT>          return a.objects[arrayOffset];<a name="line.98"></a>
<FONT color="green">099</FONT>        }<a name="line.99"></a>
<FONT color="green">100</FONT>        else<a name="line.100"></a>
<FONT color="green">101</FONT>        {<a name="line.101"></a>
<FONT color="green">102</FONT>          // We must be in the current array, so pull it from there<a name="line.102"></a>
<FONT color="green">103</FONT>    <a name="line.103"></a>
<FONT color="green">104</FONT>          // %REVIEW% We may want to check to see if arrayIndx is only<a name="line.104"></a>
<FONT color="green">105</FONT>          // one freater that the m_Arrays.size(); This code is safe but<a name="line.105"></a>
<FONT color="green">106</FONT>          // will repete if the index is greater than the array size.<a name="line.106"></a>
<FONT color="green">107</FONT>          return m_currentArray.objects[arrayOffset];<a name="line.107"></a>
<FONT color="green">108</FONT>        }<a name="line.108"></a>
<FONT color="green">109</FONT>      }<a name="line.109"></a>
<FONT color="green">110</FONT>    <a name="line.110"></a>
<FONT color="green">111</FONT>      /**<a name="line.111"></a>
<FONT color="green">112</FONT>       * @param idx Index of the Object in the Array<a name="line.112"></a>
<FONT color="green">113</FONT>       * @param obj , The value to set in the Array<a name="line.113"></a>
<FONT color="green">114</FONT>       *<a name="line.114"></a>
<FONT color="green">115</FONT>       */<a name="line.115"></a>
<FONT color="green">116</FONT>      public void setAt( final int idx, final Object obj )<a name="line.116"></a>
<FONT color="green">117</FONT>      {<a name="line.117"></a>
<FONT color="green">118</FONT>        int arrayIndx = idx / m_minArraySize;<a name="line.118"></a>
<FONT color="green">119</FONT>        int arrayOffset = idx - (arrayIndx * m_minArraySize);<a name="line.119"></a>
<FONT color="green">120</FONT>    <a name="line.120"></a>
<FONT color="green">121</FONT>        //<a name="line.121"></a>
<FONT color="green">122</FONT>        // If the array has been off loaded to the Vector Storage them<a name="line.122"></a>
<FONT color="green">123</FONT>        // grab it from there.<a name="line.123"></a>
<FONT color="green">124</FONT>        if (arrayIndx &lt; m_Arrays.size())<a name="line.124"></a>
<FONT color="green">125</FONT>        {<a name="line.125"></a>
<FONT color="green">126</FONT>          _ObjectArray a = (_ObjectArray)m_Arrays.elementAt(arrayIndx);<a name="line.126"></a>
<FONT color="green">127</FONT>          a.objects[arrayOffset] = obj;<a name="line.127"></a>
<FONT color="green">128</FONT>        }<a name="line.128"></a>
<FONT color="green">129</FONT>        else<a name="line.129"></a>
<FONT color="green">130</FONT>        {<a name="line.130"></a>
<FONT color="green">131</FONT>          // We must be in the current array, so pull it from there<a name="line.131"></a>
<FONT color="green">132</FONT>    <a name="line.132"></a>
<FONT color="green">133</FONT>          // %REVIEW% We may want to check to see if arrayIndx is only<a name="line.133"></a>
<FONT color="green">134</FONT>          // one freater that the m_Arrays.size(); This code is safe but<a name="line.134"></a>
<FONT color="green">135</FONT>          // will repete if the index is greater than the array size.<a name="line.135"></a>
<FONT color="green">136</FONT>          m_currentArray.objects[arrayOffset] = obj;<a name="line.136"></a>
<FONT color="green">137</FONT>        }<a name="line.137"></a>
<FONT color="green">138</FONT>      }<a name="line.138"></a>
<FONT color="green">139</FONT>    <a name="line.139"></a>
<FONT color="green">140</FONT>    <a name="line.140"></a>
<FONT color="green">141</FONT>    <a name="line.141"></a>
<FONT color="green">142</FONT>      /**<a name="line.142"></a>
<FONT color="green">143</FONT>       * @param o Object to be appended to the Array<a name="line.143"></a>
<FONT color="green">144</FONT>       *<a name="line.144"></a>
<FONT color="green">145</FONT>       */<a name="line.145"></a>
<FONT color="green">146</FONT>      public int append( Object o )<a name="line.146"></a>
<FONT color="green">147</FONT>      {<a name="line.147"></a>
<FONT color="green">148</FONT>        if (m_nextSlot &gt;= m_minArraySize)<a name="line.148"></a>
<FONT color="green">149</FONT>        {<a name="line.149"></a>
<FONT color="green">150</FONT>          m_Arrays.addElement(m_currentArray);<a name="line.150"></a>
<FONT color="green">151</FONT>          m_nextSlot = 0;<a name="line.151"></a>
<FONT color="green">152</FONT>          m_currentArray = new _ObjectArray(m_minArraySize);<a name="line.152"></a>
<FONT color="green">153</FONT>        }<a name="line.153"></a>
<FONT color="green">154</FONT>    <a name="line.154"></a>
<FONT color="green">155</FONT>        m_currentArray.objects[m_nextSlot] = o;<a name="line.155"></a>
<FONT color="green">156</FONT>    <a name="line.156"></a>
<FONT color="green">157</FONT>        int pos = (m_Arrays.size() * m_minArraySize) + m_nextSlot;<a name="line.157"></a>
<FONT color="green">158</FONT>    <a name="line.158"></a>
<FONT color="green">159</FONT>        m_nextSlot++;<a name="line.159"></a>
<FONT color="green">160</FONT>    <a name="line.160"></a>
<FONT color="green">161</FONT>        return pos;<a name="line.161"></a>
<FONT color="green">162</FONT>      }<a name="line.162"></a>
<FONT color="green">163</FONT>    <a name="line.163"></a>
<FONT color="green">164</FONT>    <a name="line.164"></a>
<FONT color="green">165</FONT>      /**<a name="line.165"></a>
<FONT color="green">166</FONT>       */<a name="line.166"></a>
<FONT color="green">167</FONT>      class _ObjectArray<a name="line.167"></a>
<FONT color="green">168</FONT>      {<a name="line.168"></a>
<FONT color="green">169</FONT>        /**<a name="line.169"></a>
<FONT color="green">170</FONT>         */<a name="line.170"></a>
<FONT color="green">171</FONT>        public Object[] objects;<a name="line.171"></a>
<FONT color="green">172</FONT>        /**<a name="line.172"></a>
<FONT color="green">173</FONT>         * @param size<a name="line.173"></a>
<FONT color="green">174</FONT>         */<a name="line.174"></a>
<FONT color="green">175</FONT>        public _ObjectArray( int size )<a name="line.175"></a>
<FONT color="green">176</FONT>        {<a name="line.176"></a>
<FONT color="green">177</FONT>          objects = new Object[size];<a name="line.177"></a>
<FONT color="green">178</FONT>        }<a name="line.178"></a>
<FONT color="green">179</FONT>      }<a name="line.179"></a>
<FONT color="green">180</FONT>    <a name="line.180"></a>
<FONT color="green">181</FONT>      /**<a name="line.181"></a>
<FONT color="green">182</FONT>       * @param args<a name="line.182"></a>
<FONT color="green">183</FONT>       *<a name="line.183"></a>
<FONT color="green">184</FONT>       */<a name="line.184"></a>
<FONT color="green">185</FONT>      public static void main( String[] args )<a name="line.185"></a>
<FONT color="green">186</FONT>      {<a name="line.186"></a>
<FONT color="green">187</FONT>        String[] word={<a name="line.187"></a>
<FONT color="green">188</FONT>          "Zero","One","Two","Three","Four","Five",<a name="line.188"></a>
<FONT color="green">189</FONT>          "Six","Seven","Eight","Nine","Ten",<a name="line.189"></a>
<FONT color="green">190</FONT>          "Eleven","Twelve","Thirteen","Fourteen","Fifteen",<a name="line.190"></a>
<FONT color="green">191</FONT>          "Sixteen","Seventeen","Eighteen","Nineteen","Twenty",<a name="line.191"></a>
<FONT color="green">192</FONT>          "Twenty-One","Twenty-Two","Twenty-Three","Twenty-Four",<a name="line.192"></a>
<FONT color="green">193</FONT>          "Twenty-Five","Twenty-Six","Twenty-Seven","Twenty-Eight",<a name="line.193"></a>
<FONT color="green">194</FONT>          "Twenty-Nine","Thirty","Thirty-One","Thirty-Two",<a name="line.194"></a>
<FONT color="green">195</FONT>          "Thirty-Three","Thirty-Four","Thirty-Five","Thirty-Six",<a name="line.195"></a>
<FONT color="green">196</FONT>          "Thirty-Seven","Thirty-Eight","Thirty-Nine"};<a name="line.196"></a>
<FONT color="green">197</FONT>    <a name="line.197"></a>
<FONT color="green">198</FONT>        ObjectArray m_ObjectArray = new ObjectArray();<a name="line.198"></a>
<FONT color="green">199</FONT>        // Add them in, using the default block size<a name="line.199"></a>
<FONT color="green">200</FONT>        for (int x =0; x&lt; word.length; x++)<a name="line.200"></a>
<FONT color="green">201</FONT>        {<a name="line.201"></a>
<FONT color="green">202</FONT>          System.out.print(" - " + m_ObjectArray.append(word[x]));<a name="line.202"></a>
<FONT color="green">203</FONT>        }<a name="line.203"></a>
<FONT color="green">204</FONT>    <a name="line.204"></a>
<FONT color="green">205</FONT>        System.out.println("\n");<a name="line.205"></a>
<FONT color="green">206</FONT>        // Now let's read them out sequentally<a name="line.206"></a>
<FONT color="green">207</FONT>        for (int x =0; x&lt; word.length; x++)<a name="line.207"></a>
<FONT color="green">208</FONT>        {<a name="line.208"></a>
<FONT color="green">209</FONT>          String s = (String) m_ObjectArray.getAt(x);<a name="line.209"></a>
<FONT color="green">210</FONT>          System.out.println(s);<a name="line.210"></a>
<FONT color="green">211</FONT>        }<a name="line.211"></a>
<FONT color="green">212</FONT>    <a name="line.212"></a>
<FONT color="green">213</FONT>        // Some Random Access<a name="line.213"></a>
<FONT color="green">214</FONT>        System.out.println((String) m_ObjectArray.getAt(5));<a name="line.214"></a>
<FONT color="green">215</FONT>        System.out.println((String) m_ObjectArray.getAt(10));<a name="line.215"></a>
<FONT color="green">216</FONT>        System.out.println((String) m_ObjectArray.getAt(20));<a name="line.216"></a>
<FONT color="green">217</FONT>        System.out.println((String) m_ObjectArray.getAt(2));<a name="line.217"></a>
<FONT color="green">218</FONT>        System.out.println((String) m_ObjectArray.getAt(15));<a name="line.218"></a>
<FONT color="green">219</FONT>        System.out.println((String) m_ObjectArray.getAt(30));<a name="line.219"></a>
<FONT color="green">220</FONT>        System.out.println((String) m_ObjectArray.getAt(6));<a name="line.220"></a>
<FONT color="green">221</FONT>        System.out.println((String) m_ObjectArray.getAt(8));<a name="line.221"></a>
<FONT color="green">222</FONT>    <a name="line.222"></a>
<FONT color="green">223</FONT>        // Out of bounds<a name="line.223"></a>
<FONT color="green">224</FONT>        System.out.println((String) m_ObjectArray.getAt(40));<a name="line.224"></a>
<FONT color="green">225</FONT>    <a name="line.225"></a>
<FONT color="green">226</FONT>      }<a name="line.226"></a>
<FONT color="green">227</FONT>    }<a name="line.227"></a>


</PRE>
</BODY>
</HTML>