| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> |
| <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> |
| <head> |
| <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1" /> |
| <title>AbstractContext xref</title> |
| <link type="text/css" rel="stylesheet" href="../../../../stylesheet.css" /> |
| </head> |
| <body> |
| <div id="overview"><a href="../../../../../apidocs/org/apache/velocity/context/AbstractContext.html">View Javadoc</a></div><pre> |
| |
| <a name="1" href="#1">1</a> <strong class="jxr_keyword">package</strong> org.apache.velocity.context; |
| <a name="2" href="#2">2</a> |
| <a name="3" href="#3">3</a> <em class="jxr_comment">/*</em> |
| <a name="4" href="#4">4</a> <em class="jxr_comment"> * Licensed to the Apache Software Foundation (ASF) under one</em> |
| <a name="5" href="#5">5</a> <em class="jxr_comment"> * or more contributor license agreements. See the NOTICE file</em> |
| <a name="6" href="#6">6</a> <em class="jxr_comment"> * distributed with this work for additional information</em> |
| <a name="7" href="#7">7</a> <em class="jxr_comment"> * regarding copyright ownership. The ASF licenses this file</em> |
| <a name="8" href="#8">8</a> <em class="jxr_comment"> * to you under the Apache License, Version 2.0 (the</em> |
| <a name="9" href="#9">9</a> <em class="jxr_comment"> * "License"); you may not use this file except in compliance</em> |
| <a name="10" href="#10">10</a> <em class="jxr_comment"> * with the License. You may obtain a copy of the License at</em> |
| <a name="11" href="#11">11</a> <em class="jxr_comment"> *</em> |
| <a name="12" href="#12">12</a> <em class="jxr_comment"> * <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em> |
| <a name="13" href="#13">13</a> <em class="jxr_comment"> *</em> |
| <a name="14" href="#14">14</a> <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing,</em> |
| <a name="15" href="#15">15</a> <em class="jxr_comment"> * software distributed under the License is distributed on an</em> |
| <a name="16" href="#16">16</a> <em class="jxr_comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</em> |
| <a name="17" href="#17">17</a> <em class="jxr_comment"> * KIND, either express or implied. See the License for the</em> |
| <a name="18" href="#18">18</a> <em class="jxr_comment"> * specific language governing permissions and limitations</em> |
| <a name="19" href="#19">19</a> <em class="jxr_comment"> * under the License. </em> |
| <a name="20" href="#20">20</a> <em class="jxr_comment"> */</em> |
| <a name="21" href="#21">21</a> |
| <a name="22" href="#22">22</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="23" href="#23">23</a> <em class="jxr_javadoccomment"> * This class is the abstract base class for all conventional</em> |
| <a name="24" href="#24">24</a> <em class="jxr_javadoccomment"> * Velocity Context implementations. Simply extend this class</em> |
| <a name="25" href="#25">25</a> <em class="jxr_javadoccomment"> * and implement the abstract routines that access your preferred</em> |
| <a name="26" href="#26">26</a> <em class="jxr_javadoccomment"> * storage method.</em> |
| <a name="27" href="#27">27</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="28" href="#28">28</a> <em class="jxr_javadoccomment"> * Takes care of context chaining.</em> |
| <a name="29" href="#29">29</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="30" href="#30">30</a> <em class="jxr_javadoccomment"> * Also handles / enforces policy on null keys and values :</em> |
| <a name="31" href="#31">31</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="32" href="#32">32</a> <em class="jxr_javadoccomment"> * <ul></em> |
| <a name="33" href="#33">33</a> <em class="jxr_javadoccomment"> * <li> Null keys and values are accepted and basically dropped.</em> |
| <a name="34" href="#34">34</a> <em class="jxr_javadoccomment"> * <li> If you place an object into the context with a null key, it</em> |
| <a name="35" href="#35">35</a> <em class="jxr_javadoccomment"> * will be ignored and logged.</em> |
| <a name="36" href="#36">36</a> <em class="jxr_javadoccomment"> * <li> If you try to place a null into the context with any key, it</em> |
| <a name="37" href="#37">37</a> <em class="jxr_javadoccomment"> * will be dropped and logged.</em> |
| <a name="38" href="#38">38</a> <em class="jxr_javadoccomment"> * </ul></em> |
| <a name="39" href="#39">39</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="40" href="#40">40</a> <em class="jxr_javadoccomment"> * The default implementation of this for application use is</em> |
| <a name="41" href="#41">41</a> <em class="jxr_javadoccomment"> * org.apache.velocity.VelocityContext.</em> |
| <a name="42" href="#42">42</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="43" href="#43">43</a> <em class="jxr_javadoccomment"> * All thanks to Fedor for the chaining idea.</em> |
| <a name="44" href="#44">44</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="45" href="#45">45</a> <em class="jxr_javadoccomment"> * @author <a href="<a href="mailto:geirm@optonline.net" target="alexandria_uri">mailto:geirm@optonline.net</a>">Geir Magnusson Jr.</a></em> |
| <a name="46" href="#46">46</a> <em class="jxr_javadoccomment"> * @author <a href="<a href="mailto:fedor.karpelevitch@home.com" target="alexandria_uri">mailto:fedor.karpelevitch@home.com</a>">Fedor Karpelevitch</a></em> |
| <a name="47" href="#47">47</a> <em class="jxr_javadoccomment"> * @author <a href="<a href="mailto:jvanzyl@apache.org" target="alexandria_uri">mailto:jvanzyl@apache.org</a>">Jason van Zyl</a></em> |
| <a name="48" href="#48">48</a> <em class="jxr_javadoccomment"> * @version $Id: AbstractContext.java 463298 2006-10-12 16:10:32Z henning $</em> |
| <a name="49" href="#49">49</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="50" href="#50">50</a> |
| <a name="51" href="#51">51</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/velocity/context/AbstractContext.html">AbstractContext</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../org/apache/velocity/context/InternalContextBase.html">InternalContextBase</a> |
| <a name="52" href="#52">52</a> implements <a href="../../../../org/apache/velocity/context/Context.html">Context</a> |
| <a name="53" href="#53">53</a> { |
| <a name="54" href="#54">54</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="55" href="#55">55</a> <em class="jxr_javadoccomment"> * the chained Context if any</em> |
| <a name="56" href="#56">56</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="57" href="#57">57</a> <strong class="jxr_keyword">private</strong> Context innerContext = <strong class="jxr_keyword">null</strong>; |
| <a name="58" href="#58">58</a> |
| <a name="59" href="#59">59</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="60" href="#60">60</a> <em class="jxr_javadoccomment"> * Implement to return a value from the context storage.</em> |
| <a name="61" href="#61">61</a> <em class="jxr_javadoccomment"> * <br><br></em> |
| <a name="62" href="#62">62</a> <em class="jxr_javadoccomment"> * The implementation of this method is required for proper</em> |
| <a name="63" href="#63">63</a> <em class="jxr_javadoccomment"> * operation of a Context implementation in general</em> |
| <a name="64" href="#64">64</a> <em class="jxr_javadoccomment"> * Velocity use.</em> |
| <a name="65" href="#65">65</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="66" href="#66">66</a> <em class="jxr_javadoccomment"> * @param key key whose associated value is to be returned</em> |
| <a name="67" href="#67">67</a> <em class="jxr_javadoccomment"> * @return object stored in the context</em> |
| <a name="68" href="#68">68</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="69" href="#69">69</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> Object internalGet( String key ); |
| <a name="70" href="#70">70</a> |
| <a name="71" href="#71">71</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="72" href="#72">72</a> <em class="jxr_javadoccomment"> * Implement to put a value into the context storage.</em> |
| <a name="73" href="#73">73</a> <em class="jxr_javadoccomment"> * <br><br></em> |
| <a name="74" href="#74">74</a> <em class="jxr_javadoccomment"> * The implementation of this method is required for</em> |
| <a name="75" href="#75">75</a> <em class="jxr_javadoccomment"> * proper operation of a Context implementation in</em> |
| <a name="76" href="#76">76</a> <em class="jxr_javadoccomment"> * general Velocity use.</em> |
| <a name="77" href="#77">77</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="78" href="#78">78</a> <em class="jxr_javadoccomment"> * @param key key with which to associate the value</em> |
| <a name="79" href="#79">79</a> <em class="jxr_javadoccomment"> * @param value value to be associated with the key</em> |
| <a name="80" href="#80">80</a> <em class="jxr_javadoccomment"> * @return previously stored value if exists, or null</em> |
| <a name="81" href="#81">81</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="82" href="#82">82</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> Object internalPut( String key, Object value ); |
| <a name="83" href="#83">83</a> |
| <a name="84" href="#84">84</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="85" href="#85">85</a> <em class="jxr_javadoccomment"> * Implement to determine if a key is in the storage.</em> |
| <a name="86" href="#86">86</a> <em class="jxr_javadoccomment"> * <br><br></em> |
| <a name="87" href="#87">87</a> <em class="jxr_javadoccomment"> * Currently, this method is not used internally by</em> |
| <a name="88" href="#88">88</a> <em class="jxr_javadoccomment"> * the Velocity engine.</em> |
| <a name="89" href="#89">89</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="90" href="#90">90</a> <em class="jxr_javadoccomment"> * @param key key to test for existance</em> |
| <a name="91" href="#91">91</a> <em class="jxr_javadoccomment"> * @return true if found, false if not</em> |
| <a name="92" href="#92">92</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="93" href="#93">93</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">boolean</strong> internalContainsKey(Object key); |
| <a name="94" href="#94">94</a> |
| <a name="95" href="#95">95</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="96" href="#96">96</a> <em class="jxr_javadoccomment"> * Implement to return an object array of key</em> |
| <a name="97" href="#97">97</a> <em class="jxr_javadoccomment"> * strings from your storage.</em> |
| <a name="98" href="#98">98</a> <em class="jxr_javadoccomment"> * <br><br></em> |
| <a name="99" href="#99">99</a> <em class="jxr_javadoccomment"> * Currently, this method is not used internally by</em> |
| <a name="100" href="#100">100</a> <em class="jxr_javadoccomment"> * the Velocity engine.</em> |
| <a name="101" href="#101">101</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="102" href="#102">102</a> <em class="jxr_javadoccomment"> * @return array of keys</em> |
| <a name="103" href="#103">103</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="104" href="#104">104</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> Object[] internalGetKeys(); |
| <a name="105" href="#105">105</a> |
| <a name="106" href="#106">106</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="107" href="#107">107</a> <em class="jxr_javadoccomment"> * I mplement to remove an item from your storage.</em> |
| <a name="108" href="#108">108</a> <em class="jxr_javadoccomment"> * <br><br></em> |
| <a name="109" href="#109">109</a> <em class="jxr_javadoccomment"> * Currently, this method is not used internally by</em> |
| <a name="110" href="#110">110</a> <em class="jxr_javadoccomment"> * the Velocity engine.</em> |
| <a name="111" href="#111">111</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="112" href="#112">112</a> <em class="jxr_javadoccomment"> * @param key key to remove</em> |
| <a name="113" href="#113">113</a> <em class="jxr_javadoccomment"> * @return object removed if exists, else null</em> |
| <a name="114" href="#114">114</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="115" href="#115">115</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> Object internalRemove(Object key); |
| <a name="116" href="#116">116</a> |
| <a name="117" href="#117">117</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="118" href="#118">118</a> <em class="jxr_javadoccomment"> * default CTOR</em> |
| <a name="119" href="#119">119</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="120" href="#120">120</a> <strong class="jxr_keyword">public</strong> <a href="../../../../org/apache/velocity/context/AbstractContext.html">AbstractContext</a>() |
| <a name="121" href="#121">121</a> { |
| <a name="122" href="#122">122</a> } |
| <a name="123" href="#123">123</a> |
| <a name="124" href="#124">124</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="125" href="#125">125</a> <em class="jxr_javadoccomment"> * Chaining constructor accepts a Context argument.</em> |
| <a name="126" href="#126">126</a> <em class="jxr_javadoccomment"> * It will relay get() operations into this Context</em> |
| <a name="127" href="#127">127</a> <em class="jxr_javadoccomment"> * in the even the 'local' get() returns null.</em> |
| <a name="128" href="#128">128</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="129" href="#129">129</a> <em class="jxr_javadoccomment"> * @param inner context to be chained</em> |
| <a name="130" href="#130">130</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="131" href="#131">131</a> <strong class="jxr_keyword">public</strong> <a href="../../../../org/apache/velocity/context/AbstractContext.html">AbstractContext</a>( Context <strong class="jxr_keyword">inner</strong> ) |
| <a name="132" href="#132">132</a> { |
| <a name="133" href="#133">133</a> innerContext = <strong class="jxr_keyword">inner</strong>; |
| <a name="134" href="#134">134</a> |
| <a name="135" href="#135">135</a> <em class="jxr_comment">/*</em> |
| <a name="136" href="#136">136</a> <em class="jxr_comment"> * now, do a 'forward pull' of event cartridge so</em> |
| <a name="137" href="#137">137</a> <em class="jxr_comment"> * it's accessable, bringing to the top level.</em> |
| <a name="138" href="#138">138</a> <em class="jxr_comment"> */</em> |
| <a name="139" href="#139">139</a> |
| <a name="140" href="#140">140</a> <strong class="jxr_keyword">if</strong> (innerContext instanceof InternalEventContext ) |
| <a name="141" href="#141">141</a> { |
| <a name="142" href="#142">142</a> attachEventCartridge( ( (InternalEventContext) innerContext).getEventCartridge() ); |
| <a name="143" href="#143">143</a> } |
| <a name="144" href="#144">144</a> } |
| <a name="145" href="#145">145</a> |
| <a name="146" href="#146">146</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="147" href="#147">147</a> <em class="jxr_javadoccomment"> * Adds a name/value pair to the context.</em> |
| <a name="148" href="#148">148</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="149" href="#149">149</a> <em class="jxr_javadoccomment"> * @param key The name to key the provided value with.</em> |
| <a name="150" href="#150">150</a> <em class="jxr_javadoccomment"> * @param value The corresponding value.</em> |
| <a name="151" href="#151">151</a> <em class="jxr_javadoccomment"> * @return Object that was replaced in the the Context if</em> |
| <a name="152" href="#152">152</a> <em class="jxr_javadoccomment"> * applicable or null if not.</em> |
| <a name="153" href="#153">153</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="154" href="#154">154</a> <strong class="jxr_keyword">public</strong> Object put(String key, Object value) |
| <a name="155" href="#155">155</a> { |
| <a name="156" href="#156">156</a> <em class="jxr_comment">/*</em> |
| <a name="157" href="#157">157</a> <em class="jxr_comment"> * don't even continue if key or value is null</em> |
| <a name="158" href="#158">158</a> <em class="jxr_comment"> */</em> |
| <a name="159" href="#159">159</a> |
| <a name="160" href="#160">160</a> <strong class="jxr_keyword">if</strong> (key == <strong class="jxr_keyword">null</strong>) |
| <a name="161" href="#161">161</a> { |
| <a name="162" href="#162">162</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>; |
| <a name="163" href="#163">163</a> } |
| <a name="164" href="#164">164</a> <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (value == <strong class="jxr_keyword">null</strong>) |
| <a name="165" href="#165">165</a> { |
| <a name="166" href="#166">166</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>; |
| <a name="167" href="#167">167</a> } |
| <a name="168" href="#168">168</a> |
| <a name="169" href="#169">169</a> <strong class="jxr_keyword">return</strong> internalPut(key, value); |
| <a name="170" href="#170">170</a> } |
| <a name="171" href="#171">171</a> |
| <a name="172" href="#172">172</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="173" href="#173">173</a> <em class="jxr_javadoccomment"> * Gets the value corresponding to the provided key from the context.</em> |
| <a name="174" href="#174">174</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="175" href="#175">175</a> <em class="jxr_javadoccomment"> * Supports the chaining context mechanism. If the 'local' context</em> |
| <a name="176" href="#176">176</a> <em class="jxr_javadoccomment"> * doesn't have the value, we try to get it from the chained context.</em> |
| <a name="177" href="#177">177</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="178" href="#178">178</a> <em class="jxr_javadoccomment"> * @param key The name of the desired value.</em> |
| <a name="179" href="#179">179</a> <em class="jxr_javadoccomment"> * @return The value corresponding to the provided key or null if</em> |
| <a name="180" href="#180">180</a> <em class="jxr_javadoccomment"> * the key param is null.</em> |
| <a name="181" href="#181">181</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="182" href="#182">182</a> <strong class="jxr_keyword">public</strong> Object get(String key) |
| <a name="183" href="#183">183</a> { |
| <a name="184" href="#184">184</a> <em class="jxr_comment">/*</em> |
| <a name="185" href="#185">185</a> <em class="jxr_comment"> * punt if key is null</em> |
| <a name="186" href="#186">186</a> <em class="jxr_comment"> */</em> |
| <a name="187" href="#187">187</a> |
| <a name="188" href="#188">188</a> <strong class="jxr_keyword">if</strong> (key == <strong class="jxr_keyword">null</strong>) |
| <a name="189" href="#189">189</a> { |
| <a name="190" href="#190">190</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>; |
| <a name="191" href="#191">191</a> } |
| <a name="192" href="#192">192</a> |
| <a name="193" href="#193">193</a> <em class="jxr_comment">/*</em> |
| <a name="194" href="#194">194</a> <em class="jxr_comment"> * get the object for this key. If null, and we are chaining another Context</em> |
| <a name="195" href="#195">195</a> <em class="jxr_comment"> * call the get() on it.</em> |
| <a name="196" href="#196">196</a> <em class="jxr_comment"> */</em> |
| <a name="197" href="#197">197</a> |
| <a name="198" href="#198">198</a> Object o = internalGet( key ); |
| <a name="199" href="#199">199</a> |
| <a name="200" href="#200">200</a> <strong class="jxr_keyword">if</strong> (o == <strong class="jxr_keyword">null</strong> && innerContext != <strong class="jxr_keyword">null</strong>) |
| <a name="201" href="#201">201</a> { |
| <a name="202" href="#202">202</a> o = innerContext.get( key ); |
| <a name="203" href="#203">203</a> } |
| <a name="204" href="#204">204</a> |
| <a name="205" href="#205">205</a> <strong class="jxr_keyword">return</strong> o; |
| <a name="206" href="#206">206</a> } |
| <a name="207" href="#207">207</a> |
| <a name="208" href="#208">208</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="209" href="#209">209</a> <em class="jxr_javadoccomment"> * Indicates whether the specified key is in the context. Provided for</em> |
| <a name="210" href="#210">210</a> <em class="jxr_javadoccomment"> * debugging purposes.</em> |
| <a name="211" href="#211">211</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="212" href="#212">212</a> <em class="jxr_javadoccomment"> * @param key The key to look for.</em> |
| <a name="213" href="#213">213</a> <em class="jxr_javadoccomment"> * @return true if the key is in the context, false if not.</em> |
| <a name="214" href="#214">214</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="215" href="#215">215</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> containsKey(Object key) |
| <a name="216" href="#216">216</a> { |
| <a name="217" href="#217">217</a> <strong class="jxr_keyword">if</strong> (key == <strong class="jxr_keyword">null</strong>) |
| <a name="218" href="#218">218</a> { |
| <a name="219" href="#219">219</a> <strong class="jxr_keyword">return</strong> false; |
| <a name="220" href="#220">220</a> } |
| <a name="221" href="#221">221</a> |
| <a name="222" href="#222">222</a> <strong class="jxr_keyword">return</strong> internalContainsKey(key); |
| <a name="223" href="#223">223</a> } |
| <a name="224" href="#224">224</a> |
| <a name="225" href="#225">225</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="226" href="#226">226</a> <em class="jxr_javadoccomment"> * Get all the keys for the values in the context</em> |
| <a name="227" href="#227">227</a> <em class="jxr_javadoccomment"> * @return Object[] of keys in the Context. Does not return</em> |
| <a name="228" href="#228">228</a> <em class="jxr_javadoccomment"> * keys in chained context.</em> |
| <a name="229" href="#229">229</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="230" href="#230">230</a> <strong class="jxr_keyword">public</strong> Object[] getKeys() |
| <a name="231" href="#231">231</a> { |
| <a name="232" href="#232">232</a> <strong class="jxr_keyword">return</strong> internalGetKeys(); |
| <a name="233" href="#233">233</a> } |
| <a name="234" href="#234">234</a> |
| <a name="235" href="#235">235</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="236" href="#236">236</a> <em class="jxr_javadoccomment"> * Removes the value associated with the specified key from the context.</em> |
| <a name="237" href="#237">237</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="238" href="#238">238</a> <em class="jxr_javadoccomment"> * @param key The name of the value to remove.</em> |
| <a name="239" href="#239">239</a> <em class="jxr_javadoccomment"> * @return The value that the key was mapped to, or <code>null</code></em> |
| <a name="240" href="#240">240</a> <em class="jxr_javadoccomment"> * if unmapped.</em> |
| <a name="241" href="#241">241</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="242" href="#242">242</a> <strong class="jxr_keyword">public</strong> Object remove(Object key) |
| <a name="243" href="#243">243</a> { |
| <a name="244" href="#244">244</a> <strong class="jxr_keyword">if</strong> (key == <strong class="jxr_keyword">null</strong>) |
| <a name="245" href="#245">245</a> { |
| <a name="246" href="#246">246</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>; |
| <a name="247" href="#247">247</a> } |
| <a name="248" href="#248">248</a> |
| <a name="249" href="#249">249</a> <strong class="jxr_keyword">return</strong> internalRemove(key); |
| <a name="250" href="#250">250</a> } |
| <a name="251" href="#251">251</a> |
| <a name="252" href="#252">252</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="253" href="#253">253</a> <em class="jxr_javadoccomment"> * returns innerContext if one is chained</em> |
| <a name="254" href="#254">254</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="255" href="#255">255</a> <em class="jxr_javadoccomment"> * @return Context if chained, <code>null</code> if not</em> |
| <a name="256" href="#256">256</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="257" href="#257">257</a> <strong class="jxr_keyword">public</strong> <a href="../../../../org/apache/velocity/context/Context.html">Context</a> getChainedContext() |
| <a name="258" href="#258">258</a> { |
| <a name="259" href="#259">259</a> <strong class="jxr_keyword">return</strong> innerContext; |
| <a name="260" href="#260">260</a> } |
| <a name="261" href="#261">261</a> |
| <a name="262" href="#262">262</a> } |
| <a name="263" href="#263">263</a> |
| <a name="264" href="#264">264</a> |
| <a name="265" href="#265">265</a> |
| </pre> |
| <hr/><div id="footer">This page was automatically generated by <a href="http://maven.apache.org/">Maven</a></div></body> |
| </html> |
| |
