org.apache.hadoop.hbase.regionserver

Class NonReversedNonLazyKeyValueScanner

java.lang.Object

NonLazyKeyValueScanner

org.apache.hadoop.hbase.regionserver.NonReversedNonLazyKeyValueScanner

Direct Known Subclasses:

KeyValueHeap, SnapshotSegmentScanner, StoreScanner

public abstract class NonReversedNonLazyKeyValueScanner
extends NonLazyKeyValueScanner

A "non-reversed & non-lazy" scanner which does not support backward scanning and always does a real seek operation. Most scanners are inherited from this class.

Constructor Summary

Constructors

Constructor and Description
NonReversedNonLazyKeyValueScanner()

Method Summary

Modifier and Type	Method and Description
boolean	backwardSeek(Cell key)
boolean	seekToLastRow()
boolean	seekToPreviousRow(Cell key)

Methods inherited from class java.lang.Object

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

Constructor Detail

NonReversedNonLazyKeyValueScanner

public NonReversedNonLazyKeyValueScanner()

Method Detail

backwardSeek

public boolean backwardSeek(Cell key)
                     throws java.io.IOException

Throws:

java.io.IOException

seekToPreviousRow

public boolean seekToPreviousRow(Cell key)
                          throws java.io.IOException

Throws:

java.io.IOException

seekToLastRow

public boolean seekToLastRow()
                      throws java.io.IOException

Throws:

java.io.IOException