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diff --git a/site/trunk/site-publish/resultsetdrivendataobjecttypes.html b/site/trunk/site-publish/resultsetdrivendataobjecttypes.html new file mode 100644 index 0000000000..66395ad70e --- /dev/null +++ b/site/trunk/site-publish/resultsetdrivendataobjecttypes.html @@ -0,0 +1,132 @@ + +<!-- + + Licensed to the Apache Software Foundation (ASF) under one or more + contributor license agreements. See the NOTICE file distributed with + this work for additional information regarding copyright ownership. + The ASF licenses this file to You under the Apache License, Version 2.0 + (the "License"); you may not use this file except in compliance with + the License. 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JDBC returns the data resulting from a query as a set of rows of column values. The associated ResultSetMetadata provides information about these values. Table name, column name, column type, etc. are all provided for each returned value.</P> + +<P>For example, consider a database with the following table:</P> +<DIV class="preformatted panel" style="border-width: 1px;"><DIV class="preformattedContent panelContent"> +<PRE>TABLE CUSTOMER + ID INTEGER + LASTNAME VARCHAR(20) + ADDRESS VARCHAR(30) +</PRE> +</DIV></DIV> +<P>The user might query the database like this:</P> +<DIV class="panel" style="border-width: 1px;"><DIV class="panelContent"> +<P> DAS das = DAS.FACTORY.createDAS(getConnection());<BR> + Command readCustomers = das.createCommand("select * from CUSTOMER where LASTNAME = 'Williams'");<BR> + DataObject root = readCustomers.executeQuery();</P> +</DIV></DIV> +<P>The DAS returns a graph of DataObjects each of Type CUSTOMER and each instance will have three properties: (ID, LASTNAME, ADDRESS). Since this example does not pass the DAS a set of SDO Types to use, the DAS creates the Types dynamically based on the ResultSetMetadata.</P> + +<P>The RDB DAS also allows clients to receive the results of queries as Static DataObjects (see <A href="workingwithstaticdataobjects.html" title="WorkingWithStaticDataObjects">WorkingWithStaticDataObjects</A>). </P> + </DIV> + </DIV> + </DIV> + <!-- pageContent macro end --> + + </TD> + </TR> + </TABLE> + + <!-- footer macro --> + <SCRIPT src="http://www.google-analytics.com/urchin.js" type="text/javascript"> + </SCRIPT> + <SCRIPT type="text/javascript"> + _uacct = "UA-1174707-5"; + urchinTracker(); + </SCRIPT> + + <A href="http://www.statcounter.com/" target="_blank"><IMG src="http://c26.statcounter.com/counter.php?sc_project=2619156&java=0&security=94bd7e7d&invisible=0" alt="website stats" border="0"></A> + + <DIV class="footer"> + Copyright � 2003-2012, The Apache Software Foundation </BR> + Apache Tuscany and the Apache Tuscany project logo are trademarks of The Apache Software Foundation. + </DIV> + <!-- footer macro end --> + + </BODY> +</HTML> |