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apache / trafodion-site / 48f3b5099ea7250f300c3de785249cdd8f14a21d / . / docs / 1.3.0 / dcs_reference / xref / org / trafodion / dcs / servermt / serverDriverInputOutput / SQLDataValue.html
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<div id="overview"><a href="../../../../../../apidocs/org/trafodion/dcs/servermt/serverDriverInputOutput/SQLDataValue.html">View Javadoc</a></div><pre>
<a class="jxr_linenumber" name="1" href="#1">1</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="2" href="#2">2</a> <em class="jxr_javadoccomment">* @@@ START COPYRIGHT @@@</em>
<a class="jxr_linenumber" name="3" href="#3">3</a>
<a class="jxr_linenumber" name="4" href="#4">4</a> <em class="jxr_javadoccomment">* Licensed to the Apache Software Foundation (ASF) under one</em>
<a class="jxr_linenumber" name="5" href="#5">5</a> <em class="jxr_javadoccomment">* or more contributor license agreements. See the NOTICE file</em>
<a class="jxr_linenumber" name="6" href="#6">6</a> <em class="jxr_javadoccomment">* distributed with this work for additional information</em>
<a class="jxr_linenumber" name="7" href="#7">7</a> <em class="jxr_javadoccomment">* regarding copyright ownership. The ASF licenses this file</em>
<a class="jxr_linenumber" name="8" href="#8">8</a> <em class="jxr_javadoccomment">* to you under the Apache License, Version 2.0 (the</em>
<a class="jxr_linenumber" name="9" href="#9">9</a> <em class="jxr_javadoccomment">* "License"); you may not use this file except in compliance</em>
<a class="jxr_linenumber" name="10" href="#10">10</a> <em class="jxr_javadoccomment">* with the License. You may obtain a copy of the License at</em>
<a class="jxr_linenumber" name="11" href="#11">11</a>
<a class="jxr_linenumber" name="12" href="#12">12</a> <em class="jxr_javadoccomment">* <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a class="jxr_linenumber" name="13" href="#13">13</a>
<a class="jxr_linenumber" name="14" href="#14">14</a> <em class="jxr_javadoccomment">* Unless required by applicable law or agreed to in writing,</em>
<a class="jxr_linenumber" name="15" href="#15">15</a> <em class="jxr_javadoccomment">* software distributed under the License is distributed on an</em>
<a class="jxr_linenumber" name="16" href="#16">16</a> <em class="jxr_javadoccomment">* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</em>
<a class="jxr_linenumber" name="17" href="#17">17</a> <em class="jxr_javadoccomment">* KIND, either express or implied. See the License for the</em>
<a class="jxr_linenumber" name="18" href="#18">18</a> <em class="jxr_javadoccomment">* specific language governing permissions and limitations</em>
<a class="jxr_linenumber" name="19" href="#19">19</a> <em class="jxr_javadoccomment">* under the License.</em>
<a class="jxr_linenumber" name="20" href="#20">20</a>
<a class="jxr_linenumber" name="21" href="#21">21</a> <em class="jxr_javadoccomment">* @@@ END COPYRIGHT @@@</em>
<a class="jxr_linenumber" name="22" href="#22">22</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="23" href="#23">23</a> <strong class="jxr_keyword">package</strong> org.trafodion.dcs.servermt.serverDriverInputOutput;
<a class="jxr_linenumber" name="24" href="#24">24</a>
<a class="jxr_linenumber" name="25" href="#25">25</a> <strong class="jxr_keyword">import</strong> java.net.*;
<a class="jxr_linenumber" name="26" href="#26">26</a> <strong class="jxr_keyword">import</strong> java.io.*;
<a class="jxr_linenumber" name="27" href="#27">27</a> <strong class="jxr_keyword">import</strong> java.nio.*;
<a class="jxr_linenumber" name="28" href="#28">28</a> <strong class="jxr_keyword">import</strong> java.nio.channels.*;
<a class="jxr_linenumber" name="29" href="#29">29</a> <strong class="jxr_keyword">import</strong> java.nio.channels.spi.*;
<a class="jxr_linenumber" name="30" href="#30">30</a> <strong class="jxr_keyword">import</strong> java.sql.SQLException;
<a class="jxr_linenumber" name="31" href="#31">31</a>
<a class="jxr_linenumber" name="32" href="#32">32</a> <strong class="jxr_keyword">import</strong> org.trafodion.dcs.Constants;
<a class="jxr_linenumber" name="33" href="#33">33</a> <strong class="jxr_keyword">import</strong> org.trafodion.dcs.util.*;
<a class="jxr_linenumber" name="34" href="#34">34</a> <strong class="jxr_keyword">import</strong> org.trafodion.dcs.servermt.ServerConstants;
<a class="jxr_linenumber" name="35" href="#35">35</a> <strong class="jxr_keyword">import</strong> org.trafodion.dcs.servermt.ServerUtils;
<a class="jxr_linenumber" name="36" href="#36">36</a> <strong class="jxr_keyword">import</strong> org.trafodion.dcs.servermt.serverHandler.*;
<a class="jxr_linenumber" name="37" href="#37">37</a>
<a class="jxr_linenumber" name="38" href="#38">38</a> <strong class="jxr_keyword">import</strong> org.apache.commons.logging.Log;
<a class="jxr_linenumber" name="39" href="#39">39</a> <strong class="jxr_keyword">import</strong> org.apache.commons.logging.LogFactory;
<a class="jxr_linenumber" name="40" href="#40">40</a>
<a class="jxr_linenumber" name="41" href="#41">41</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/trafodion/dcs/servermt/serverDriverInputOutput/SQLDataValue.html">SQLDataValue</a> {
<a class="jxr_linenumber" name="42" href="#42">42</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Log LOG = LogFactory.getLog(SQLDataValue.<strong class="jxr_keyword">class</strong>);
<a class="jxr_linenumber" name="43" href="#43">43</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> length;
<a class="jxr_linenumber" name="44" href="#44">44</a> <strong class="jxr_keyword">private</strong> byte[] buffer;
<a class="jxr_linenumber" name="45" href="#45">45</a> <em class="jxr_comment">// ----------------------------------------------------------</em>
<a class="jxr_linenumber" name="46" href="#46">46</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> insertIntoByteBuffer(ByteBuffer bbBuf) <strong class="jxr_keyword">throws</strong> UnsupportedEncodingException {
<a class="jxr_linenumber" name="47" href="#47">47</a> <strong class="jxr_keyword">if</strong> (buffer != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="48" href="#48">48</a> bbBuf.putInt(length);
<a class="jxr_linenumber" name="49" href="#49">49</a> bbBuf.put(buffer, 0, length);
<a class="jxr_linenumber" name="50" href="#50">50</a> } <strong class="jxr_keyword">else</strong>
<a class="jxr_linenumber" name="51" href="#51">51</a> bbBuf.putInt(0);
<a class="jxr_linenumber" name="52" href="#52">52</a> }
<a class="jxr_linenumber" name="53" href="#53">53</a> <em class="jxr_comment">// ----------------------------------------------------------</em>
<a class="jxr_linenumber" name="54" href="#54">54</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> extractFromByteBuffer(ByteBuffer bbBuf) <strong class="jxr_keyword">throws</strong> UnsupportedEncodingException {
<a class="jxr_linenumber" name="55" href="#55">55</a> length = bbBuf.getInt();
<a class="jxr_linenumber" name="56" href="#56">56</a> <strong class="jxr_keyword">if</strong> (length &gt; 0) {
<a class="jxr_linenumber" name="57" href="#57">57</a> ByteBufferUtils.extractByteArrayLen(bbBuf, length);
<a class="jxr_linenumber" name="58" href="#58">58</a> bbBuf.get(); <em class="jxr_comment">//null terminating</em>
<a class="jxr_linenumber" name="59" href="#59">59</a> }
<a class="jxr_linenumber" name="60" href="#60">60</a> }
<a class="jxr_linenumber" name="61" href="#61">61</a> <em class="jxr_comment">// ----------------------------------------------------------</em>
<a class="jxr_linenumber" name="62" href="#62">62</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> lengthOfData() {
<a class="jxr_linenumber" name="63" href="#63">63</a> <strong class="jxr_keyword">return</strong> (buffer != <strong class="jxr_keyword">null</strong>) ? ServerConstants.INT_FIELD_SIZE + buffer.length + 1 : ServerConstants.INT_FIELD_SIZE;
<a class="jxr_linenumber" name="64" href="#64">64</a> }
<a class="jxr_linenumber" name="65" href="#65">65</a> }
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