org.opennms.netmgt.jasper.measurement.local

Class LocalMeasurementDataSourceWrapper

java.lang.Object

org.opennms.netmgt.jasper.measurement.local.LocalMeasurementDataSourceWrapper

All Implemented Interfaces:

MeasurementDataSourceWrapper

public class LocalMeasurementDataSourceWrapper
extends Object
implements MeasurementDataSourceWrapper

This data source is used when the reports are running within a OpenNMS JVM. In detail they should be used if there is an implementation of MeasurementFetchStrategy available by BeanUtils.instantiate(Class).

Constructor Summary

Constructors

Constructor and Description
LocalMeasurementDataSourceWrapper(MeasurementFetchStrategy fetchStrategy, ExpressionEngine expressionEngine, FilterEngine filterEngine)

Method Summary

Modifier and Type	Method and Description
void	close()
net.sf.jasperreports.engine.JRRewindableDataSource	createDataSource(String query) Creates a JRRewindableDataSource according to the provided query.

Methods inherited from class java.lang.Object

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

Constructor Detail

LocalMeasurementDataSourceWrapper

public LocalMeasurementDataSourceWrapper(MeasurementFetchStrategy fetchStrategy,
                                         ExpressionEngine expressionEngine,
                                         FilterEngine filterEngine)

Method Detail

createDataSource

public net.sf.jasperreports.engine.JRRewindableDataSource createDataSource(String query)
                                                                    throws net.sf.jasperreports.engine.JRException

Description copied from interface: MeasurementDataSourceWrapper

Creates a JRRewindableDataSource according to the provided query.

Specified by:

createDataSource in interface MeasurementDataSourceWrapper

Parameters:

query - The query to execute. Should be a OpenNMS Measurement API parsable QueryRequest. It may be null, but not empty.

Returns:

The DataSource.

Throws:

net.sf.jasperreports.engine.JRException - In any error situation. RuntimeException are not catched and may be thrown in addition.

close

public void close()

Specified by:

close in interface MeasurementDataSourceWrapper