Storing data in hdf format

[Sven N. Thommesen]

I am trying to save application data in a hdf5 format file, but I am 
meeting with some problems. Perhaps someone out there has done this before 
and can offer some hints?

I have defined an inner class 'DataRecord' which contains a bunch of 
integers and arrays of integers. During the program run I collect 
statistics and fill in this record. Then I try to write the record to a hdf 
file, and this is where the problems crop up.

I have tried 3 different approaches:

1.
   Globals.env.hdf5AppArchiver.putShallow$object (dataKey, dataRecord); // 
dataKey is a suitable String

2.
   HDF5Archiver dataArchiver = new HDF5ArchiverImpl (getZone(), archiverPath);
   ...
   dataArchiver.putShallow$object (dataKey, dataRecord);

In both cases, the following runtime error ensues:

"An unexpected exception has been detected in native code outside the VM. 
Program counter = 0x48b0770c. Problematic thread: prio=1 tid=0x80fd708 
nid=0x4f0 runnable"

3. Trying to get closer to hdf:

   new File (dataFileName).delete();
   HDF5CImpl hdf5C = new HDF5CImpl (new HDF5Impl());
   hdf5C.createBegin(getZone());
   hdf5C.setWriteFlag(true);
   hdf5C.setName(dataFileName);
   dataFile = (HDF5) hdf5C.createEnd();
   ...
   dataFile.shallowStoreObject (dataRecord);

In this case, the error is:

"Event raised for error: SaveError
function: _i_HDF5_c_shallowStoreObject_(), file: HDF5Object.m, line 2006
shallow datasets are expected to have compound type"

Any help would be appreciated.

Sven


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