diff options
Diffstat (limited to 'site/trunk/site-publish/rdb-das-c-resultsetdrivendataobjecttypes.html')
| -rw-r--r-- | site/trunk/site-publish/rdb-das-c-resultsetdrivendataobjecttypes.html | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/site/trunk/site-publish/rdb-das-c-resultsetdrivendataobjecttypes.html b/site/trunk/site-publish/rdb-das-c-resultsetdrivendataobjecttypes.html new file mode 100644 index 0000000000..fd6e26d6a0 --- /dev/null +++ b/site/trunk/site-publish/rdb-das-c-resultsetdrivendataobjecttypes.html @@ -0,0 +1,98 @@ + +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<HTML> + <HEAD> + <LINK type="text/css" rel="stylesheet" href="http://incubator.apache.org/tuscany/stylesheets/default.css"> + <LINK rel="SHORTCUT ICON" href="http://cwiki.apache.org/confluence/pages/$images/favicon.ico"> + <TITLE>RDB DAS C++ ResultSetDrivenDataObjectTypes : Apache Tuscany</TITLE> + <META http-equiv="Content-Type" content="text/html;charset=UTF-8"></HEAD> + + <BODY onload="init()"> + + <TABLE valign="top" border="0" cellspacing="0" cellpadding="0" width="100%" background="http://incubator.apache.org/tuscany/images/TuscanyLogoNEW_Text_120px_bg.jpg"> + <TR> + <TD valing="top" align="left"> + <A href="http://cwiki.apache.org/confluence/pages/$siteroot"><IMG src="http://incubator.apache.org/tuscany/images/TuscanyLogoNEW_Text_120px_bg.jpg" height="91" width="25" border="0"></A> + </TD> + <TD> + <A href="http://incubator.apache.org/tuscany/"><IMG src="http://incubator.apache.org/tuscany/images/TuscanyLogo.jpg" border="0"></A> + </TD> + + <TD width="100%"> + + </TD> + <TD align="right"> + <IMG src="http://incubator.apache.org/tuscany/images/apache-incubator-logo.png" border="0"> + </TD> + + <!-- Adds the edit page link to the top banner--> + <TD valign="bottom"> + <DIV style="padding: 2px 10px; margin: 0px;"> + <A href="http://cwiki.apache.org/confluence/pages/editpage.action?pageId=69450"> + <IMG src="http://incubator.apache.org/tuscany/images/notep_16.gif" height="16" width="16" border="0" align="absmiddle" title="Edit Page"></A> + </DIV> + </TD> + + </TR> + </TABLE> + + <TABLE border="0" cellpadding="2" cellspacing="0" width="100%"> + <TR class="topBar"> + <TD align="left" valign="middle" class="topBarDiv" nowrap="true" width="100%"> + <A href="home.html" title="Apache Tuscany">Apache Tuscany</A> > <A href="home.html" title="Home">Home</A> > <A href="das-overview.html" title="DAS Overview">DAS Overview</A> > <A href="das-c.html" title="DAS C++">DAS C++</A> > <A href="das-c-documentation-menu.html" title="DAS C++ Documentation Menu">DAS C++ Documentation Menu</A> > <A href="rdb-das-c-user-guide.html" title="RDB DAS C++ - User Guide">RDB DAS C++ - User Guide</A> > <A href="" title="RDB DAS C++ ResultSetDrivenDataObjectTypes">RDB DAS C++ ResultSetDrivenDataObjectTypes</A> + </TD> + + <TD align="left" valign="middle" class="topBarDiv" nowrap="true"> + <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> + </TD> + </TR> + </TABLE> + + <TABLE border="0" cellpadding="0" width="100%" bgcolor="#FFFFFF"> + <TR> + <TD align="left" valign="top"> + <DIV id="PageContent"> + + <DIV class="pagecontent"> + <DIV class="wiki-content"> + <H1><A name="RDBDASC%2B%2BResultSetDrivenDataObjectTypes-ResultSetDrivenDataObjectTypes%26nbsp%3B"></A>ResultSetDrivenDataObjectTypes </H1> + +<P>RDB DAS uses the database metadata retrieved by ODBC driver to create the set of SDO Types used to construct the data graph returned as a result of a query. ODBC returns the data resulting from a query as a set of rows of column values. The metadata associated with this result set 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"><DIV class="preformattedContent"> +<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"><DIV class="panelContent"> +<P> DASImpl* das = (DASImpl*) DASImpl::getFactory().createDAS(getConnection());<BR> + CommandPtr readCustomers = das->createCommand("select * from CUSTOMER where LASTNAME = 'Williams'");<BR> + DataObjectPtr root = readCustomers0->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 metadata.</P> + </DIV> + </DIV> + </DIV> + </TD> + </TR> + </TABLE> + + <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 © 2003-2007, The Apache Software Foundation + </DIV> + + </BODY> +</HTML>
\ No newline at end of file |