Uses of Class
org.apache.hadoop.hbase.io.encoding.AbstractDataBlockEncoder

Packages that use org.apache.hadoop.hbase.io.encoding.AbstractDataBlockEncoder
Package
Description
 
  • Uses of org.apache.hadoop.hbase.io.encoding.AbstractDataBlockEncoder in org.apache.hadoop.hbase.io.encoding

    Subclasses of org.apache.hadoop.hbase.io.encoding.AbstractDataBlockEncoder in in org.apache.hadoop.hbase.io.encoding
    Modifier and Type
    Class
    Description
    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.