How to search BLOB in BPEL xml_documents

Hi,
We have several hundred transactions that run on a single day through BPEL.
For production support, I need to be able to access the XML document associated with an instance. This I do by clicking on the Instance --> Flow tab --> click on Acitvity --> view xml document.
This is ok for recent records, but what about if I want to access, say, something from last month?
I use the filter criteria but sometimes I end up having to click through several pages before I can get to the corresponding one.
Also, it would be great to be able to search for a specific string in the XMLs it so that I dont have to click through each one in roughly the same time period to find the one I'm looking for.
I can use orabpel.bpel_process_instances and filter by process name etc, but I cant open the BLOB in the xml_document table, which has the payload.
There seems to be something on this : Extract BPEL instance execution log from database tables but I cant see a resolution.
Anyone have any ideas?
thanks!

I see the BIN (BLOB) column in ORABPEL.XML_DOCUMENT stores the data as a GZIP. If you save this data in a file (for example, with SQLDeveloper -> [...] -> Save as) and uncompress it, the resultant file contains Java serialization data, version 5 (open it with a text editor...you'll barely see the XML).
For this reason, I think it is not possible to make an really efficient search tool that looks in the BPEL instances' XML.
If I really had to do it, I'd try programming a Java class that takes a (very short) date range, and check row by row, uncompressing and interpreting the java serialization data (you'll have to find the connection between ORABPEL.CUBE_INSTANCE and ORABPEL.XML_DOCUMENT and maybe other tables). I haven't play with the ORABPEL tables.
Besides, I guess not all the XML is stored in XML_DOCUMENT.
My two cents.
Sorry my english.

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// ==========================================================
import java.io.*;
import java.util.StringTokenizer;
import java.text.DecimalFormat;
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} // classData file contents:
TOOL 1     1     1.21
TOOL 2     8     3.85
TOOL 3     35     6.92

Ok, so you have an array of Strings. And if the string you are searching for is in the array, you need to remove it from the array.
Is that right?
Can you use an ArrayList<String> instead of a String[ ]?
To find it, you would just do:
for (String item : myArray){
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}Heck, with an arraylist you might be able to do the following:
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the above assumes you are using 1.5
uses generics and for each loop
[edit2]
and kinda won't work it you have to use an array since you will need the array index to be able to remove it. See the previous post for that, then set the value in that array index to null.
Message was edited by:
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