Using a java variable in jsp-Reports?

Question

Hello everyone,
is it possible to use a java variable in the xml-definition of a report? Something like
<%@ taglib uri="/WEB-INF/lib/reports_tld.jar" prefix="rw" %>
<% String someSqlStatement="select * from emp"; %>
<rw:report id="myReport">
<rw:objects id="myObjects">
<report DTDVersion="9000010" name="myReport">
<data>
<dataSource name="Q_1">
<select>
<![CDATA[
<%= someSQLStatement %>
]]>
</select>
It won't work that way (as the string is not evaluated and inserted into the definition, but how could it be done? Would be great to modify the report programatically that way? Any ideas?
TIA,
Marcel Jantz

Answer 1

To pass values to Reports, you should use the "parameters" attribute in the <rw:report> tag. In the above case you would have:
<% String myParameters="p_someSqlStatement=select%20*%20from%20emp"; %>
<rw:report id="myReport" parameters="<%= myParameters %>">
<rw:objects id="myObjects">
<report DTDVersion="9000010" name="myReport">
<data>
<dataSource name="Q_1">
<select>
<![CDATA[ &p_someSqlStatement ]]>
</select>
The body of the <rw:objects> tag isn't evaluated since the Reports Builder needs to be able to open and load the <rw:objects> tag. As the Reports builder doesn't run the .jsp on open, it only parses it, the <rw:objects> tag can't have values that need to be evaluated.