visad.data
Interface FormBlockReader

All Known Implementing Classes:

AVIForm, BioRadForm, BioRadForm, DeltavisionForm, FluoviewTiffForm, GatanForm, ICSForm, ImageProSeqForm, IPLabForm, IPWForm, LegacyTiffForm, LegacyZVIForm, LeicaForm, LociForm, MetamorphForm, OpenlabForm, PerkinElmerForm, PictForm, QTForm, TiffForm, ZeissForm, ZVIForm

public interface FormBlockReader

FormBlockReader is the VisAD interface for reading in subsets of data, or "blocks," from a data file.

Method Summary

void	close() Closes any open files.
int	getBlockCount(String id) Determines the number of blocks in the given file.
DataImpl	open(String id, int block_number) Obtains the specified block from the given file.

Method Detail

open

DataImpl open(String id,
              int block_number)
              throws BadFormException,
                     IOException,
                     VisADException

Obtains the specified block from the given file.

Parameters:

id - The file from which to load data blocks.

block_number - The block number of the block to load.

Throws:

VisADException - If the block number is invalid.

BadFormException

IOException

getBlockCount

int getBlockCount(String id)
                  throws BadFormException,
                         IOException,
                         VisADException

Determines the number of blocks in the given file.

Parameters:

id - The file for which to get a block count.

Throws:

BadFormException

IOException

VisADException

close

void close()
           throws BadFormException,
                  IOException,
                  VisADException

Closes any open files.

Throws:

BadFormException

IOException

VisADException