Package org.apache.hadoop.hbase

Class ByteBufferTag

java.lang.Object

org.apache.hadoop.hbase.ByteBufferTag

All Implemented Interfaces:

Tag

@Private
@Evolving
public class ByteBufferTag
extends Object
implements Tag

This is a Tag implementation in which value is backed by ByteBuffer

Field Summary

Fields

Modifier and Type	Field	Description
private ByteBuffer	buffer
private int	length
private int	offset
private byte	type

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

CUSTOM_TAG_TYPE_RANGE, INFRASTRUCTURE_SIZE, MAX_TAG_LENGTH, TAG_LENGTH_SIZE, TYPE_LENGTH_SIZE

Constructor Summary

Constructors

Constructor	Description
ByteBufferTag(ByteBuffer buffer, int offset, int length)

Method Summary

Modifier and Type	Method	Description
byte	getType()	Returns the tag type
byte[]	getValueArray()	Return an array containing the value bytes if Tag.hasArray() returns true.
ByteBuffer	getValueByteBuffer()	Returns The ByteBuffer containing the value bytes.
int	getValueLength()	Returns Length of tag value within the backed buffer
int	getValueOffset()	Returns Offset of tag value within the backed buffer
boolean	hasArray()	Return true if the tag is backed by a byte array
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

buffer

private ByteBuffer buffer

offset

private int offset

length

private int length

type

private byte type

Constructor Details

ByteBufferTag

public ByteBufferTag(ByteBuffer buffer,
 int offset,
 int length)

Method Details

getType

public byte getType()

Description copied from interface: Tag

Returns the tag type

Specified by:

getType in interface Tag

getValueOffset

public int getValueOffset()

Description copied from interface: Tag

Returns Offset of tag value within the backed buffer

Specified by:

getValueOffset in interface Tag

getValueLength

public int getValueLength()

Description copied from interface: Tag

Returns Length of tag value within the backed buffer

Specified by:

getValueLength in interface Tag

hasArray

public boolean hasArray()

Description copied from interface: Tag

Return true if the tag is backed by a byte array

Specified by:

hasArray in interface Tag

getValueArray

public byte[] getValueArray()

Description copied from interface: Tag

Return an array containing the value bytes if Tag.hasArray() returns true.

Use Tag.getValueByteBuffer() otherwise.

Specified by:

getValueArray in interface Tag

getValueByteBuffer

public ByteBuffer getValueByteBuffer()

Description copied from interface: Tag

Returns The ByteBuffer containing the value bytes.

Specified by:

getValueByteBuffer in interface Tag

toString

public String toString()

Overrides:

toString in class Object