org.apache.hadoop.hive.shims

Interface HadoopShims.ZeroCopyReaderShim

Enclosing interface:

HadoopShims

public static interface HadoopShims.ZeroCopyReaderShim

Method Summary

Methods

Modifier and Type	Method and Description
ByteBuffer	readBuffer(int maxLength, boolean verifyChecksums) Get a ByteBuffer from the FSDataInputStream - this can be either a HeapByteBuffer or an MappedByteBuffer.
void	releaseBuffer(ByteBuffer buffer) Release a ByteBuffer obtained from a read on the Also move the in stream by that amount.

Method Detail

readBuffer

ByteBuffer readBuffer(int maxLength,
                    boolean verifyChecksums)
                      throws IOException

Get a ByteBuffer from the FSDataInputStream - this can be either a HeapByteBuffer or an MappedByteBuffer. Also move the in stream by that amount. The data read can be small than maxLength.

Returns:

ByteBuffer read from the stream,

Throws:

IOException

releaseBuffer

void releaseBuffer(ByteBuffer buffer)

Release a ByteBuffer obtained from a read on the Also move the in stream by that amount. The data read can be small than maxLength.