Multiple Data Sources and Accessing External Java APIs

Hi Everyone,
I have a couple of questions for which I was not able to find satisfactory answers in the forum search, so here they are. I would be really grateful if you can help us out with this.
1. Accessing two Data Sources in the same report: We have a requirement to access two data sources in the same report, and use the data from one source to run a query on the other source. Our product (OIM) has its own DB. And it integrates with BPEL (another Oracle application) for some functionality. BPEL has its own DB. A few reports need data from both these repositories. For simplicity, consider that we need to join two tables, but one table is in OIM DB and the other is in BPEL DB. I guess such a join is not possible. So to work around it, we would like to run a query against one DB and then use the results to run a query on the other DB, which will basically simulate the join by running two queries.
Is something like this possible in BIP? If not directly available, can you suggest something which can act as a work around to achieve this?
2. Calling External Java APIs from BIP: We need to call some external APIs (for achieving Data Security) 'before' we run the queries in BIP. Basically the Java API will specifya set of keys which will have to be used in an 'in' clause. I looked at the section "Building a Data Template" in the BIP User's Guide (http://bipublisher.us.oracle.com/doc/prod_docs/BI_Publisher_10_1_3_3_3/bip.1013/b40017/T421739T434255.htm). As far as I can see, it discusses how to invoke a PL/SQL procedure using <datatrigger> but the usage is not clear to me. Is there any other document that discusses this in detail? Also, I am not sure if it is possible to access Java APIs. Has it been done before? If yes, then can anyone provide some sample code (sample report bits) which I can refer to to get this thing working?
Also, the data coming from the Java API may not be in the correct format. We may have to do some additional processing (like converting data in a Java Object to something like comma separated list to be plugged into a query). Is that possible? What will be the best approach here?
Sorry for the detailed post!
Thanks,
Jatan

Yes you should be able to use both - for example using a Flash Variable to pass in the URL of the XML that you want to load.
FlashVars are only supposed to be passed in on startup and they are defined as part of the OBJECT/EMBED tag for the HTML.
Actually it was possible to update FlashVars at runtime in Xcelsius 4.5 with certain JavaScript calls but not in Xcelsius 2008 (because Adobe Flex which Xcelsius 2008 is based on does not allow the same mechanism).
FYI, for those that are interested in Xcelsius 2008 you pass values into/out of Xcelsius at runtime using External Interface and JavaScript instead.
Regards,
Matt

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Stijn,
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Thanks you, but I explain better what i was doing.
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http://blogs.technet.com/b/tothesharepoint/archive/2013/05/28/stage-11-upload-and-apply-display-templates-to-the-content-search-web-part.aspx
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Best regards
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TechNet Community Support

Multiple Data Sources and Accessing External Java APIs

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