org.knime.core.data.container
Class BufferFromFileIteratorVersion20.DataCellStreamReader

java.lang.Object
  org.knime.core.data.container.BufferFromFileIteratorVersion20.DataCellStreamReader

Enclosing class:

BufferFromFileIteratorVersion20

static class BufferFromFileIteratorVersion20.DataCellStreamReader
extends Object

Utility class that separates the logic of reading DataCells from the stream. It is a separate class since the same logic is also used to read files containing blob cells.

Constructor Summary

BufferFromFileIteratorVersion20.DataCellStreamReader(Buffer buffer)
Only memorizes the buffer.

Method Summary

(package private) BlobDataCell	readBlobDataCell(BlobDataCell.BlobAddress blobAddress, CellClassInfo cl) Reads the blob from the given blob address.
(package private) DataCell	readDataCell(DCObjectInputVersion2 inStream) Reads a data cell from the argument stream.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BufferFromFileIteratorVersion20.DataCellStreamReader

BufferFromFileIteratorVersion20.DataCellStreamReader(Buffer buffer)

Only memorizes the buffer.

Parameters:

buffer - associated buffer.

Method Detail

readDataCell

DataCell readDataCell(DCObjectInputVersion2 inStream)
                throws IOException

Reads a data cell from the argument stream. Does not exception handling, nor stream blocking.

Parameters:

inStream - To read from.

Returns:

the data cell being read

Throws:

IOException - If exceptions occur.

readBlobDataCell

BlobDataCell readBlobDataCell(BlobDataCell.BlobAddress blobAddress,
                              CellClassInfo cl)
                        throws IOException

Reads the blob from the given blob address.

Parameters:

blobAddress - The address to read from.

cl - The expected class.

Returns:

The blob cell being read.

Throws:

IOException - If that fails.