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git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1640879 13f79535-47bb-0310-9956-ffa450edef68
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136 lines
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<A href="home.html" title="Apache Tuscany">Apache Tuscany</A> > <A href="" title="Java+SCA+implementation.script">Java+SCA+implementation.script</A>
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<A href="http://mail-archives.apache.org/mod_mbox/ws-tuscany-user">User List</A> | <A href="http://mail-archives.apache.org/mod_mbox/ws-tuscany-dev">Dev List</A> | <A href="http://issues.apache.org/jira/browse/Tuscany">Issue Tracker</A>
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<P><SPAN class="nobr"><A href="http://cwiki.apache.org/confluence/pages/createpage.action?spaceKey=TUSCANY&title=SCA%20Java%20Doc&linkCreation=true&fromPageId=47581" title="Create Page: SCA Java Doc" class="createlink">Java Doc<SUP><IMG class="rendericon" src="http://cwiki.apache.org/confluence/images/icons/plus.gif" height="7" width="7" align="absmiddle" alt="" border="0"></SUP></A></SPAN><BR>
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<H3><A name="Java%2BSCA%2Bimplementation.script-%3Cimplementation.script%3E"></A><implementation.script></H3>
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<P>The Tuscany Java SCA runtime supports implementing SCA components in a wide variety of dynamic or scripting languages by using the <implementation.script> SCDL extension.</P>
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<P>Any language that supports the "Scripting for Java" APIs defined by JSR-223 is supported, this includes Groovy, JavaScript, JRuby, Jython, and many others.</P>
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<P>To use these languages the SCA assembly SCDL is extended with an "implementation.script" element which has the following options:</P>
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<DIV class="code"><DIV class="codeContent">
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<PRE class="code-java"><implementation.script [ script=<SPAN class="code-quote">"" | language="</SPAN>" ] >
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[inline src]
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</implementation.script></PRE>
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</DIV></DIV>
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<P>The source code for the script maybe defined in a seperate file pointed to by the 'script=' attribute, or the source code maybe embedded within the SCDL inline inside the <implementation.script> element.</P>
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<P>The 'language=' attribute defines the language of the program. The language attribute is optional when the source code is in a separate file in which case the file extension of the file is used to determine the language.</P>
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<H4><A name="Java%2BSCA%2Bimplementation.script-Someexamples%3A"></A>Some examples:</H4>
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<P>A Ruby program defined in a file 'myScript.rb' in a folder named 'test':</P>
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<DIV class="code"><DIV class="codeContent">
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<PRE class="code-java"><implementation.script script=<SPAN class="code-quote">"test/myScript.rb"</SPAN>/></PRE>
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</DIV></DIV>
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<P>A JavaScript program defined inline:</P>
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<DIV class="code"><DIV class="codeContent">
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<PRE class="code-java"><implementation.script language=<SPAN class="code-quote">"js"</SPAN>>
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function sayHello(name) {
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<SPAN class="code-keyword">return</SPAN> <SPAN class="code-quote">"Hello "</SPAN> + name;
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}
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</implementation.script></PRE>
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</DIV></DIV>
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<P>When using inline scripts which contain special characters such as XML markup you may need to enclose the source within a CDATA region, for example:</P>
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<DIV class="code"><DIV class="codeContent">
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<PRE class="code-java"><implementation.script language=<SPAN class="code-quote">"js"</SPAN>><![CDATA[
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function sayHello(inXML) {
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<SPAN class="code-keyword">return</SPAN> <sayHelloResponse>Hello { inXML..name }</sayHelloResponse>;
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}
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]]></implementation.script></PRE>
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