org.apache.hadoop.hbase.codec.prefixtree.decode.column

Class ColumnReader

java.lang.Object

org.apache.hadoop.hbase.codec.prefixtree.decode.column.ColumnReader

@InterfaceAudience.Private
public class ColumnReader
extends Object

Position one of these appropriately in the data block and you can call its methods to retrieve the family or qualifier at the current position.

Field Summary

Fields

Modifier and Type	Field and Description
protected PrefixTreeBlockMeta	blockMeta fields
protected byte[]	columnBuffer
protected int	columnLength
protected ColumnNodeReader	columnNodeReader
protected int	columnOffset
protected ColumnNodeType	nodeType

Constructor Summary

Constructors

Constructor and Description
ColumnReader(byte[] columnBuffer, ColumnNodeType nodeType) construct

Method Summary

Methods

Modifier and Type	Method and Description
void	clearColumnBuffer()
byte[]	copyBufferToNewArray()
int	getColumnLength()
int	getColumnOffset() get/set
void	initOnBlock(PrefixTreeBlockMeta blockMeta, byte[] block)
ColumnReader	populateBuffer(int offsetIntoColumnData) methods

Methods inherited from class java.lang.Object

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

Field Detail

blockMeta

protected PrefixTreeBlockMeta blockMeta

fields

columnBuffer

protected byte[] columnBuffer

columnOffset

protected int columnOffset

columnLength

protected int columnLength

nodeType

protected ColumnNodeType nodeType

columnNodeReader

protected ColumnNodeReader columnNodeReader

Constructor Detail

ColumnReader

public ColumnReader(byte[] columnBuffer,
            ColumnNodeType nodeType)

construct

Method Detail

initOnBlock

public void initOnBlock(PrefixTreeBlockMeta blockMeta,
               byte[] block)

populateBuffer

public ColumnReader populateBuffer(int offsetIntoColumnData)

methods

copyBufferToNewArray

public byte[] copyBufferToNewArray()

getColumnLength

public int getColumnLength()

clearColumnBuffer

public void clearColumnBuffer()

getColumnOffset

public int getColumnOffset()

get/set