co.cask.cdap.data2.increment.hbase

Class TimestampOracle

java.lang.Object

co.cask.cdap.data2.increment.hbase.TimestampOracle

Direct Known Subclasses:

SettableTimestampOracle

public class TimestampOracle
extends Object

Utility class that allows HBase coprocessors to interact with unique timestamps.

Constructor Summary

Constructors

Constructor and Description
TimestampOracle()

Method Summary

Methods

Modifier and Type	Method and Description
long	currentTime() Returns the current wall clock time in milliseconds, multiplied by the required precision.
long	getUniqueTimestamp() Returns a timestamp value unique within the scope of this TimestampOracle instance.

Methods inherited from class java.lang.Object

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

Constructor Detail

TimestampOracle

public TimestampOracle()

Method Detail

currentTime

public long currentTime()

Returns the current wall clock time in milliseconds, multiplied by the required precision.

getUniqueTimestamp

public long getUniqueTimestamp()

Returns a timestamp value unique within the scope of this TimestampOracle instance. For usage by HBase RegionObserver coprocessors, this normally means unique within a given region.