Package org.apache.hadoop.hbase

Class NoTagsKeyValue

java.lang.Object

org.apache.hadoop.hbase.KeyValue

org.apache.hadoop.hbase.NoTagsKeyValue

All Implemented Interfaces:

Cloneable, Cell, ExtendedCell, HeapSize, RawCell

@Private
public class NoTagsKeyValue
extends KeyValue

An extension of the KeyValue where the tags length is always 0

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hbase.KeyValue

KeyValue.KeyOnlyKeyValue, KeyValue.SamePrefixComparator<T>, KeyValue.Type

Field Summary

Fields inherited from class org.apache.hadoop.hbase.KeyValue

bytes, COLUMN_FAMILY_DELIM_ARRAY, COLUMN_FAMILY_DELIMITER, FAMILY_LENGTH_SIZE, FIXED_OVERHEAD, KEY_INFRASTRUCTURE_SIZE, KEY_LENGTH_SIZE, KEYVALUE_INFRASTRUCTURE_SIZE, KEYVALUE_WITH_TAGS_INFRASTRUCTURE_SIZE, length, LOWESTKEY, offset, ROW_KEY_OFFSET, ROW_LENGTH_SIZE, ROW_OFFSET, TAGS_LENGTH_SIZE, TIMESTAMP_SIZE, TIMESTAMP_TYPE_SIZE, TYPE_SIZE

Fields inherited from interface org.apache.hadoop.hbase.ExtendedCell

CELL_NOT_BASED_ON_CHUNK

Fields inherited from interface org.apache.hadoop.hbase.RawCell

MAX_TAGS_LENGTH

Constructor Summary

Constructors

Constructor	Description
NoTagsKeyValue(byte[] bytes, int offset, int length)

Method Summary

Modifier and Type	Method	Description
ExtendedCell	deepClone()	Does a deep copy of the contents to a new memory area and returns it as a new cell.
int	getSerializedSize(boolean withTags)	KeyValue format
int	getTagsLength()	Return the total length of the tag bytes
int	write(OutputStream out, boolean withTags)	Write this cell to an OutputStream in a KeyValue format.

Methods inherited from class org.apache.hadoop.hbase.KeyValue

checkParameters, clone, create, create, createKeyOnly, equals, getBuffer, getDelimiter, getDelimiterInReverse, getFamilyArray, getFamilyLength, getFamilyLength, getFamilyLengthPosition, getFamilyOffset, getFamilyOffset, getKey, getKeyDataStructureSize, getKeyLength, getKeyOffset, getKeyString, getKeyValueDataStructureSize, getKeyValueDataStructureSize, getKeyValueDataStructureSize, getLength, getOffset, getQualifierArray, getQualifierLength, getQualifierLength, getQualifierOffset, getQualifierOffset, getRowArray, getRowLength, getRowOffset, getSequenceId, getSerializedSize, getTagsArray, getTagsOffset, getTimestamp, getTimestamp, getTimestampOffset, getTypeByte, getTypeByte, getValueArray, getValueLength, getValueOffset, hashCode, heapSize, humanReadableTimestamp, isLatestTimestamp, keyToString, keyToString, setSequenceId, setTimestamp, setTimestamp, shallowCopy, toString, toStringMap, updateLatestStamp, write, write, writeByteArray

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.hadoop.hbase.ExtendedCell

getChunkId, getType

Methods inherited from interface org.apache.hadoop.hbase.RawCell

cloneTags, getTag, getTags

Constructor Details

NoTagsKeyValue

public NoTagsKeyValue(byte[] bytes,
 int offset,
 int length)

Method Details

getTagsLength

public int getTagsLength()

Description copied from class: KeyValue

Return the total length of the tag bytes

Specified by:

getTagsLength in interface RawCell

Overrides:

getTagsLength in class KeyValue

Returns:

the total length of the tags in the Cell.

write

public int write(OutputStream out,
 boolean withTags)
          throws IOException

Description copied from interface: ExtendedCell

Write this cell to an OutputStream in a KeyValue format.
KeyValue format
<4 bytes keylength> <4 bytes valuelength> <2 bytes rowlength> <row> <1 byte columnfamilylength> <columnfamily> <columnqualifier> <8 bytes timestamp> <1 byte keytype> <value> <2 bytes tagslength> <tags>

Specified by:

write in interface ExtendedCell

Overrides:

write in class KeyValue

Parameters:

out - Stream to which cell has to be written

withTags - Whether to write tags.

Returns:

how many bytes are written.

Throws:

IOException

getSerializedSize

public int getSerializedSize(boolean withTags)

Description copied from interface: ExtendedCell

KeyValue format

<4 bytes keylength> <4 bytes valuelength> <2 bytes rowlength> <row> <1 byte columnfamilylength> <columnfamily> <columnqualifier> <8 bytes timestamp> <1 byte keytype> <value> <2 bytes tagslength> <tags>

Specified by:

getSerializedSize in interface ExtendedCell

Overrides:

getSerializedSize in class KeyValue

Parameters:

withTags - Whether to write tags.

Returns:

Bytes count required to serialize this Cell in a KeyValue format.

deepClone

public ExtendedCell deepClone()

Description copied from interface: ExtendedCell

Does a deep copy of the contents to a new memory area and returns it as a new cell.

Specified by:

deepClone in interface ExtendedCell

Overrides:

deepClone in class KeyValue

Returns:

The deep cloned cell