[Xbrlapi-developer] Difficulties working with the rendering example

[Matthew D. <ro...@gm...>]

Hi Geoff,

Following your suggestion, I have started to work with aspects and
dimensions.  I have been using your rendering example
(org.xbrlapi.data.bdbxml.examples.render, Run.java) as a template, since it
uses fact sets and aspect values in a number of ways.  After some problems
with my own code, I attempted to run your Run.java example as is, on
http://www.sec.gov/Archives/edgar/data/93751/000119312510036481/stt-20091231.xml,
which is in the data store.  It takes a long time to run (upwards of a half
hour), and fails with an Out of Memory Error after line 394 (once it starts
building childConcepts).  My memory is set to 2G (out of 4G system memory),
which I should think would be sufficient for a single instance document.

As mentioned above, I have also been running into problems with my own code,
attempting to load all of the Facts in a particular instance into a FactSet.
 Specifically, if I retrieve all Facts from an instance, and attempt to use
addFacts() to add those Facts to the FactSet, I get an Out of Memory Error.
 I have taken to loading the Facts one by one into the FactSet, which
bypasses the memory error, but is extremely slow: each Fact takes many
minutes (while writing, I have watched one take over 10 minutes).  This does
not make sense to me: if all of the Facts can be retrieved from the instance
in a few seconds, I do not see why adding the Facts to the FactSet should
take so long.  In an attempt to speed the process up, I ran your utility to
persist relationships (org.xbrlapi.data.bdbxml.examples.utilities,
PersistAllRelationshipsInStore.java), but this did not help.  I am beginning
to suspect that there is something wrong with my installation, but I am not
sure how to figure out what.

Do you have any idea why these functions are eating so much memory and CPU
on my system?  I don't think that I will be able to use dimensions and
aspects for my project (which will analyze over 500 annual reports) if I
cannot solve these issues.


Regards,
Matt