org.apache.hudi.io.hfile

Class HFileLeafIndexBlock

java.lang.Object

org.apache.hudi.io.hfile.HFileBlock

org.apache.hudi.io.hfile.HFileLeafIndexBlock

Direct Known Subclasses:

HFileIntermediateIndexBlock

public class HFileLeafIndexBlock
extends HFileBlock

Represents a HFileBlockType.LEAF_INDEX block, as part of a multi-level block index.

Field Summary

Fields inherited from class org.apache.hudi.io.hfile.HFileBlock

byteBuff, bytesPerChecksum, compressedByteBuff, context, HFILEBLOCK_HEADER_SIZE, HFILEBLOCK_HEADER_SIZE_NO_CHECKSUM, onDiskSizeWithoutHeader, sizeCheckSum, startOffsetInBuff, startOffsetInCompressedBuff, uncompressedEndOffset, uncompressedSizeWithoutHeader

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	HFileLeafIndexBlock(HFileContext context, byte[] byteBuff, int startOffsetInBuff)
protected	HFileLeafIndexBlock(HFileContext context, HFileBlockType blockType, byte[] byteBuff, int startOffsetInBuff)

Method Summary

Modifier and Type	Method and Description
protected ByteBuffer	getUncompressedBlockDataToWrite() Returns serialized "data" part of the block.
List<BlockIndexEntry>	readBlockIndex() Reads the index block and returns the block index entries.

Methods inherited from class org.apache.hudi.io.hfile.HFileBlock

allocateBufferForUnpacking, getBlockType, getByteBuff, getOnDiskSizeWithHeader, getStartOffsetInBuffForWrite, parse, serialize, setStartOffsetInBuffForWrite, unpack

Methods inherited from class java.lang.Object

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

Constructor Detail

HFileLeafIndexBlock

protected HFileLeafIndexBlock(HFileContext context,
                              byte[] byteBuff,
                              int startOffsetInBuff)

HFileLeafIndexBlock

protected HFileLeafIndexBlock(HFileContext context,
                              HFileBlockType blockType,
                              byte[] byteBuff,
                              int startOffsetInBuff)

Method Detail

getUncompressedBlockDataToWrite

protected ByteBuffer getUncompressedBlockDataToWrite()
                                              throws IOException

Description copied from class: HFileBlock

Returns serialized "data" part of the block. This function must be implemented by each block type separately.

Specified by:

getUncompressedBlockDataToWrite in class HFileBlock

Throws:

IOException

readBlockIndex

public List<BlockIndexEntry> readBlockIndex()

Reads the index block and returns the block index entries.