Uses of Interface
org.apache.hadoop.hbase.io.encoding.DataBlockEncoder

Packages that use org.apache.hadoop.hbase.io.encoding.DataBlockEncoder
Package
Description
org.apache.hadoop.hbase.io.encoding
 

  • Uses of org.apache.hadoop.hbase.io.encoding.DataBlockEncoder in org.apache.hadoop.hbase.io.encoding

    Classes in org.apache.hadoop.hbase.io.encoding that implement org.apache.hadoop.hbase.io.encoding.DataBlockEncoder in in
    Modifier and Type
    Class
    Description
    class 
    org.apache.hadoop.hbase.io.encoding.AbstractDataBlockEncoder
     
    class 
    org.apache.hadoop.hbase.io.encoding.CopyKeyDataBlockEncoder
    Just copy data, do not do any kind of compression.
    class 
    org.apache.hadoop.hbase.io.encoding.DiffKeyDeltaEncoder
    Compress using: - store size of common prefix - save column family once, it is same within HFile - use integer compression for key, value and prefix (7-bit encoding) - use bits to avoid duplication key length, value length and type if it same as previous - store in 3 bits length of timestamp field - allow diff in timestamp instead of actual value Format: - 1 byte: flag - 1-5 bytes: key length (only if FLAG_SAME_KEY_LENGTH is not set in flag) - 1-5 bytes: value length (only if FLAG_SAME_VALUE_LENGTH is not set in flag) - 1-5 bytes: prefix length - ...
    class 
    org.apache.hadoop.hbase.io.encoding.FastDiffDeltaEncoder
    Encoder similar to DiffKeyDeltaEncoder but supposedly faster.
    class 
    org.apache.hadoop.hbase.io.encoding.PrefixKeyDeltaEncoder
    Compress key by storing size of common prefix with previous KeyValue and storing raw size of rest.
    class 
    org.apache.hadoop.hbase.io.encoding.RowIndexCodecV1
    Store cells following every row's start offset, so we can binary search to a row's cells.
    Methods in org.apache.hadoop.hbase.io.encoding that return org.apache.hadoop.hbase.io.encoding.DataBlockEncoder in in
    Modifier and Type
    Method
    Description
    static org.apache.hadoop.hbase.io.encoding.DataBlockEncoder
    DataBlockEncoding.getDataBlockEncoderById(short encoderId)
    Find and create data block encoder for given id;
    org.apache.hadoop.hbase.io.encoding.DataBlockEncoder
    DataBlockEncoding.getEncoder()
    Return new data block encoder for given algorithm type.
    Methods in org.apache.hadoop.hbase.io.encoding with parameters of type org.apache.hadoop.hbase.io.encoding.DataBlockEncoder in in
    Modifier and Type
    Method
    Description
    static boolean
    DataBlockEncoding.isCorrectEncoder(org.apache.hadoop.hbase.io.encoding.DataBlockEncoder encoder, short encoderId)
    Check if given encoder has this id.
    Constructors in org.apache.hadoop.hbase.io.encoding with parameters of type org.apache.hadoop.hbase.io.encoding.DataBlockEncoder in in
    Modifier
    Constructor
    Description
     
    EncodedDataBlock(org.apache.hadoop.conf.Configuration conf, org.apache.hadoop.hbase.io.encoding.DataBlockEncoder dataBlockEncoder, org.apache.hadoop.hbase.io.encoding.DataBlockEncoding encoding, byte[] rawKVs, org.apache.hadoop.hbase.io.hfile.HFileContext meta)
    Create a buffer which will be encoded using dataBlockEncoder.