Package org.opennms.netmgt.measurements.impl

Class JrobinFetchStrategy

java.lang.Object

org.opennms.netmgt.measurements.impl.AbstractRrdBasedFetchStrategy

org.opennms.netmgt.measurements.impl.JrobinFetchStrategy

All Implemented Interfaces:

MeasurementFetchStrategy

public class JrobinFetchStrategy
extends AbstractRrdBasedFetchStrategy

Used to fetch measurements from JRB files.

Author:

Jesse White , Dustin Frisch

Constructor Summary

Constructors

Constructor	Description
JrobinFetchStrategy()

Method Summary

Modifier and Type	Method	Description
protected FetchResults	fetchMeasurements(long start, long end, long step, int maxrows, Map<Source,String> rrdsBySource, Map<String,Object> constants, QueryMetadata metadata)	Performs the actual retrieval of the values from the RRD/JRB files.

Methods inherited from class org.opennms.netmgt.measurements.impl.AbstractRrdBasedFetchStrategy

fetch

Methods inherited from class java.lang.Object

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

Constructor Detail

JrobinFetchStrategy

public JrobinFetchStrategy()

Method Detail

fetchMeasurements

protected FetchResults fetchMeasurements(long start,
                                         long end,
                                         long step,
                                         int maxrows,
                                         Map<Source,String> rrdsBySource,
                                         Map<String,Object> constants,
                                         QueryMetadata metadata)
                                  throws org.jrobin.core.RrdException

Performs the actual retrieval of the values from the RRD/JRB files.

Specified by:

fetchMeasurements in class AbstractRrdBasedFetchStrategy

Throws:

org.jrobin.core.RrdException