org.rhq.enterprise.server.measurement

Class MeasurementCompressionManagerBean

java.lang.Object

org.rhq.enterprise.server.measurement.MeasurementCompressionManagerBean

All Implemented Interfaces:

MeasurementCompressionManagerLocal

public class MeasurementCompressionManagerBean
extends Object
implements MeasurementCompressionManagerLocal

Compresses data that increases in size over time to maintain the system for long durations. Any table that continuously grows in a non-negligible manner should be compressed and/or purged in this job.

Author:

Greg Hinkle, jay shaughnessy

Field Summary

Fields inherited from interface org.rhq.enterprise.server.measurement.MeasurementCompressionManagerLocal

TAB_DATA_1D, TAB_DATA_1H, TAB_DATA_6H

Constructor Summary

Constructors

Constructor and Description
MeasurementCompressionManagerBean()

Method Summary

Methods

Modifier and Type	Method and Description
int	compressDataInterval(String fromTable, String toTable, long begin, long end)
void	compressPurgeAndTruncate()
int	purgeMeasurementInterval(String tableName, long purgeAfter, long purgeBefore) Purge data older than a given time.
void	truncateMeasurements(String tableName)

Methods inherited from class java.lang.Object

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

Constructor Detail

MeasurementCompressionManagerBean

public MeasurementCompressionManagerBean()

Method Detail

compressPurgeAndTruncate

public void compressPurgeAndTruncate()
                              throws SQLException

Specified by:

compressPurgeAndTruncate in interface MeasurementCompressionManagerLocal

Throws:

SQLException

compressDataInterval

public int compressDataInterval(String fromTable,
                       String toTable,
                       long begin,
                       long end)
                         throws SQLException

Specified by:

compressDataInterval in interface MeasurementCompressionManagerLocal

Throws:

SQLException

purgeMeasurementInterval

public int purgeMeasurementInterval(String tableName,
                           long purgeAfter,
                           long purgeBefore)
                             throws SQLException

Purge data older than a given time.

Specified by:

purgeMeasurementInterval in interface MeasurementCompressionManagerLocal

Throws:

SQLException

truncateMeasurements

public void truncateMeasurements(String tableName)
                          throws SQLException

Specified by:

truncateMeasurements in interface MeasurementCompressionManagerLocal

Throws:

SQLException