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<FONT color="green">001</FONT>    /*<a name="line.1"></a>

<FONT color="green">002</FONT>     * @(#)$Id: ExtensionExpr.java 3619 2008-03-26 07:23:03Z yui $<a name="line.2"></a>

<FONT color="green">003</FONT>     *<a name="line.3"></a>

<FONT color="green">004</FONT>     * Copyright 2006-2008 Makoto YUI<a name="line.4"></a>

<FONT color="green">005</FONT>     *<a name="line.5"></a>

<FONT color="green">006</FONT>     * Licensed 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>     * Contributors:<a name="line.18"></a>

<FONT color="green">019</FONT>     *     Makoto YUI - initial implementation<a name="line.19"></a>

<FONT color="green">020</FONT>     */<a name="line.20"></a>

<FONT color="green">021</FONT>    package xbird.xquery.expr.decorative;<a name="line.21"></a>

<FONT color="green">022</FONT>    <a name="line.22"></a>

<FONT color="green">023</FONT>    import java.util.LinkedList;<a name="line.23"></a>

<FONT color="green">024</FONT>    import java.util.List;<a name="line.24"></a>

<FONT color="green">025</FONT>    <a name="line.25"></a>

<FONT color="green">026</FONT>    import xbird.xquery.Pragma;<a name="line.26"></a>

<FONT color="green">027</FONT>    import xbird.xquery.XQueryException;<a name="line.27"></a>

<FONT color="green">028</FONT>    import xbird.xquery.dm.value.Item;<a name="line.28"></a>

<FONT color="green">029</FONT>    import xbird.xquery.dm.value.Sequence;<a name="line.29"></a>

<FONT color="green">030</FONT>    import xbird.xquery.expr.AbstractXQExpression;<a name="line.30"></a>

<FONT color="green">031</FONT>    import xbird.xquery.expr.XQExpression;<a name="line.31"></a>

<FONT color="green">032</FONT>    import xbird.xquery.expr.ext.BDQExpr;<a name="line.32"></a>

<FONT color="green">033</FONT>    import xbird.xquery.meta.DynamicContext;<a name="line.33"></a>

<FONT color="green">034</FONT>    import xbird.xquery.meta.StaticContext;<a name="line.34"></a>

<FONT color="green">035</FONT>    import xbird.xquery.meta.XQueryContext;<a name="line.35"></a>

<FONT color="green">036</FONT>    import xbird.xquery.parser.XQueryParserVisitor;<a name="line.36"></a>

<FONT color="green">037</FONT>    <a name="line.37"></a>

<FONT color="green">038</FONT>    /**<a name="line.38"></a>

<FONT color="green">039</FONT>     * <a name="line.39"></a>

<FONT color="green">040</FONT>     * &lt;DIV lang="en"&gt;&lt;/DIV&gt;<a name="line.40"></a>

<FONT color="green">041</FONT>     * &lt;DIV lang="ja"&gt;&lt;/DIV&gt;<a name="line.41"></a>

<FONT color="green">042</FONT>     * <a name="line.42"></a>

<FONT color="green">043</FONT>     * @author Makoto YUI (yuin405+xbird@gmail.com)<a name="line.43"></a>

<FONT color="green">044</FONT>     */<a name="line.44"></a>

<FONT color="green">045</FONT>    public final class ExtensionExpr extends AbstractXQExpression implements DecorativeExpression {<a name="line.45"></a>

<FONT color="green">046</FONT>        private static final long serialVersionUID = 7078273458388928255L;<a name="line.46"></a>

<FONT color="green">047</FONT>    <a name="line.47"></a>

<FONT color="green">048</FONT>        private final List&lt;Pragma&gt; pragmas;<a name="line.48"></a>

<FONT color="green">049</FONT>        private final XQExpression expr;<a name="line.49"></a>

<FONT color="green">050</FONT>    <a name="line.50"></a>

<FONT color="green">051</FONT>        public ExtensionExpr(XQExpression expr, Pragma pragma) {<a name="line.51"></a>

<FONT color="green">052</FONT>            this(expr, new LinkedList&lt;Pragma&gt;());<a name="line.52"></a>

<FONT color="green">053</FONT>            pragmas.add(pragma);<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>        public ExtensionExpr(XQExpression expr, List&lt;Pragma&gt; pragmas) {<a name="line.56"></a>

<FONT color="green">057</FONT>            this.expr = expr;<a name="line.57"></a>

<FONT color="green">058</FONT>            this.pragmas = pragmas;<a name="line.58"></a>

<FONT color="green">059</FONT>        }<a name="line.59"></a>

<FONT color="green">060</FONT>    <a name="line.60"></a>

<FONT color="green">061</FONT>        public XQExpression visit(XQueryParserVisitor visitor, XQueryContext ctxt)<a name="line.61"></a>

<FONT color="green">062</FONT>                throws XQueryException {<a name="line.62"></a>

<FONT color="green">063</FONT>            return visitor.visit(this, ctxt);<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>        public XQExpression getExpr() {<a name="line.66"></a>

<FONT color="green">067</FONT>            return this.expr;<a name="line.67"></a>

<FONT color="green">068</FONT>        }<a name="line.68"></a>

<FONT color="green">069</FONT>    <a name="line.69"></a>

<FONT color="green">070</FONT>        public List&lt;Pragma&gt; getPragmas() {<a name="line.70"></a>

<FONT color="green">071</FONT>            return this.pragmas;<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>        public void addPragma(Pragma pragma) {<a name="line.74"></a>

<FONT color="green">075</FONT>            pragmas.add(pragma);<a name="line.75"></a>

<FONT color="green">076</FONT>        }<a name="line.76"></a>

<FONT color="green">077</FONT>    <a name="line.77"></a>

<FONT color="green">078</FONT>        public XQExpression staticAnalysis(StaticContext statEnv) throws XQueryException {<a name="line.78"></a>

<FONT color="green">079</FONT>            assert (!_analyzed);<a name="line.79"></a>

<FONT color="green">080</FONT>            if(!pragmas.isEmpty()) {<a name="line.80"></a>

<FONT color="green">081</FONT>                if(expr instanceof BDQExpr) {<a name="line.81"></a>

<FONT color="green">082</FONT>                    for(Pragma p : pragmas) {<a name="line.82"></a>

<FONT color="green">083</FONT>                        if("parallel".equals(p.getName().getLocalPart())) {<a name="line.83"></a>

<FONT color="green">084</FONT>                            ((BDQExpr) expr).setParallel(true);<a name="line.84"></a>

<FONT color="green">085</FONT>                            break;<a name="line.85"></a>

<FONT color="green">086</FONT>                        }<a name="line.86"></a>

<FONT color="green">087</FONT>                    }<a name="line.87"></a>

<FONT color="green">088</FONT>                }<a name="line.88"></a>

<FONT color="green">089</FONT>            }<a name="line.89"></a>

<FONT color="green">090</FONT>            return expr.staticAnalysis(statEnv);<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>        public Sequence&lt;? extends Item&gt; eval(Sequence&lt;? extends Item&gt; contextSeq, DynamicContext dynEnv)<a name="line.93"></a>

<FONT color="green">094</FONT>                throws XQueryException {<a name="line.94"></a>

<FONT color="green">095</FONT>            throw new IllegalStateException("ExtensionExpr should be pruned.");<a name="line.95"></a>

<FONT color="green">096</FONT>        }<a name="line.96"></a>

<FONT color="green">097</FONT>    }<a name="line.97"></a>

























































































































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