org.apache.hadoop.hbase.io.encoding

Class AbstractDataBlockEncoder

java.lang.Object

org.apache.hadoop.hbase.io.encoding.AbstractDataBlockEncoder

All Implemented Interfaces:

DataBlockEncoder

Direct Known Subclasses:

BufferedDataBlockEncoder, RowIndexCodecV1

@InterfaceAudience.Private
public abstract class AbstractDataBlockEncoder
extends Object
implements DataBlockEncoder

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	AbstractDataBlockEncoder.AbstractEncodedSeeker Decorates EncodedSeeker with a HFileBlockDecodingContext

Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.io.encoding.DataBlockEncoder

DataBlockEncoder.EncodedSeeker

Constructor Summary

Constructors

Constructor and Description
AbstractDataBlockEncoder()

Method Summary

Modifier and Type	Method and Description
protected Cell	createFirstKeyCell(ByteBuffer key, int keyLength)
HFileBlockDecodingContext	newDataBlockDecodingContext(org.apache.hadoop.conf.Configuration conf, HFileContext meta) Creates an encoder specific decoding context, which will prepare the data before actual decoding n * store configuration n * HFile meta data
HFileBlockEncodingContext	newDataBlockEncodingContext(org.apache.hadoop.conf.Configuration conf, DataBlockEncoding encoding, byte[] header, HFileContext meta) Creates a encoder specific encoding context n * store configuration n * encoding strategy used n * header bytes to be written, put a dummy header here if the header is unknown n * HFile meta data
protected void	postEncoding(HFileBlockEncodingContext encodingCtx)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.hbase.io.encoding.DataBlockEncoder

createSeeker, decodeKeyValues, encode, endBlockEncoding, getFirstKeyCellInBlock, startBlockEncoding

Constructor Detail

AbstractDataBlockEncoder

public AbstractDataBlockEncoder()

Method Detail

newDataBlockEncodingContext

public HFileBlockEncodingContext newDataBlockEncodingContext(org.apache.hadoop.conf.Configuration conf,
                                                             DataBlockEncoding encoding,
                                                             byte[] header,
                                                             HFileContext meta)

Description copied from interface: DataBlockEncoder

Creates a encoder specific encoding context n * store configuration n * encoding strategy used n * header bytes to be written, put a dummy header here if the header is unknown n * HFile meta data

Specified by:

newDataBlockEncodingContext in interface DataBlockEncoder

Returns:

a newly created encoding context

newDataBlockDecodingContext

public HFileBlockDecodingContext newDataBlockDecodingContext(org.apache.hadoop.conf.Configuration conf,
                                                             HFileContext meta)

Description copied from interface: DataBlockEncoder

Creates an encoder specific decoding context, which will prepare the data before actual decoding n * store configuration n * HFile meta data

Specified by:

newDataBlockDecodingContext in interface DataBlockEncoder

Returns:

a newly created decoding context

postEncoding

protected void postEncoding(HFileBlockEncodingContext encodingCtx)
                     throws IOException

Throws:

IOException

createFirstKeyCell

protected Cell createFirstKeyCell(ByteBuffer key,
                                  int keyLength)