Package 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

@Private
public abstract class AbstractDataBlockEncoder
extends Object
implements DataBlockEncoder

Nested Class Summary

Nested Classes

Modifier and Type	Class	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	Description
AbstractDataBlockEncoder()

Method Summary

Modifier and Type	Method	Description
protected ExtendedCell	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 store configuration HFile meta data
HFileBlockEncodingContext	newDataBlockEncodingContext(org.apache.hadoop.conf.Configuration conf, DataBlockEncoding encoding, byte[] header, HFileContext meta)	Creates a encoder specific encoding context store configuration encoding strategy used header bytes to be written, put a dummy header here if the header is unknown 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 Details

AbstractDataBlockEncoder

public AbstractDataBlockEncoder()

Method Details

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 store configuration encoding strategy used header bytes to be written, put a dummy header here if the header is unknown 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 store configuration 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 ExtendedCell createFirstKeyCell(ByteBuffer key,
 int keyLength)