org.rhq.server.metrics.migrator.datasources

Class ExistingDataBulkExportSource

java.lang.Object

org.rhq.server.metrics.migrator.datasources.ExistingDataBulkExportSource

All Implemented Interfaces:

ExistingDataSource

Direct Known Subclasses:

ExistingDataJPABulkExportSource, ExistingPostgresDataBulkExportSource

public abstract class ExistingDataBulkExportSource
extends Object
implements ExistingDataSource

Author:

Thomas Segismont

Field Summary

Fields

Modifier and Type	Field and Description
protected static String	DELIMITER
protected static int	IO_BUFFER_SIZE

Fields inherited from interface org.rhq.server.metrics.migrator.datasources.ExistingDataSource

TIMEOUT

Constructor Summary

Constructors

Constructor and Description
ExistingDataBulkExportSource()

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
protected abstract void	exportExistingData()
List<Object[]>	getData(int fromIndex, int maxResults)
protected File	getExistingDataFile()
void	initialize()
protected void	removeTempFile()
protected void	startReading()
protected void	stopReading()

Methods inherited from class java.lang.Object

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

Field Detail

IO_BUFFER_SIZE

protected static final int IO_BUFFER_SIZE

See Also:

Constant Field Values

DELIMITER

protected static final String DELIMITER

See Also:

Constant Field Values

Constructor Detail

ExistingDataBulkExportSource

public ExistingDataBulkExportSource()

Method Detail

initialize

public void initialize()
                throws Exception

Specified by:

initialize in interface ExistingDataSource

Throws:

Exception

close

public void close()
           throws Exception

Specified by:

close in interface ExistingDataSource

Throws:

Exception

exportExistingData

protected abstract void exportExistingData()
                                    throws Exception

Throws:

Exception

getExistingDataFile

protected File getExistingDataFile()

startReading

protected void startReading()
                     throws Exception

Throws:

Exception

stopReading

protected void stopReading()

removeTempFile

protected void removeTempFile()

getData

public List<Object[]> getData(int fromIndex,
                     int maxResults)
                       throws Exception

Specified by:

getData in interface ExistingDataSource

Throws:

Exception