net.sf.jasperreports.engine.fill
Class JRThreadSubreportRunner

java.lang.Object
  net.sf.jasperreports.engine.fill.JRSubreportRunnable
      net.sf.jasperreports.engine.fill.JRThreadSubreportRunner

All Implemented Interfaces:

java.lang.Runnable, JRSubreportRunner

public class JRThreadSubreportRunner
extends JRSubreportRunnable
implements JRSubreportRunner

Thread-based JRSubreportRunner implementation.

The subreport fill is launched in a new thread which coordinates suspend/resume actions with the master thread.

Version:

$Id: JRThreadSubreportRunner.java 5180 2012-03-29 13:23:12Z teodord $

Author:

Lucian Chirita (lucianc@users.sourceforge.net)

Constructor Summary

JRThreadSubreportRunner(JRFillSubreport fillSubreport, JRBaseFiller subreportFiller)

Method Summary

void	cancel() Cancels the current fill process.
boolean	isFilling() Decides whether the subreport filling has ended or not.
void	reset() Resets the runner, preparing it for a new fill.
JRSubreportRunResult	resume() Resumes the filling of a subreport.
void	run()
JRSubreportRunResult	start() Starts to fill the subreport.
void	suspend() Suspends the current fill.
protected JRSubreportRunResult	waitResult()

Methods inherited from class net.sf.jasperreports.engine.fill.JRSubreportRunnable

isRunning, runResult

Methods inherited from class java.lang.Object

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

Constructor Detail

JRThreadSubreportRunner

public JRThreadSubreportRunner(JRFillSubreport fillSubreport,
                               JRBaseFiller subreportFiller)

Method Detail

isFilling

public boolean isFilling()

Description copied from interface: JRSubreportRunner

Decides whether the subreport filling has ended or not.

Specified by:

isFilling in interface JRSubreportRunner

Returns:

true if and only if the subreport filling has not ended

start

public JRSubreportRunResult start()

Description copied from interface: JRSubreportRunner

Starts to fill the subreport.

This method is always called by a thread owning the lock on the subreport filler.

Specified by:

start in interface JRSubreportRunner

Returns:

the result of the fill process

resume

public JRSubreportRunResult resume()

Description copied from interface: JRSubreportRunner

Resumes the filling of a subreport.

This method is called after the fill has been suspended by suspend and the subreport should continue on the new page.

This method is always called by a thread owning the lock on the subreport filler.

Specified by:

resume in interface JRSubreportRunner

Returns:

the result of the fill process

waitResult

protected JRSubreportRunResult waitResult()

reset

public void reset()

Description copied from interface: JRSubreportRunner

Resets the runner, preparing it for a new fill.

Specified by:

reset in interface JRSubreportRunner

cancel

public void cancel()
            throws JRException

Description copied from interface: JRSubreportRunner

Cancels the current fill process.

This method is called when a subreport is placed on a non splitting band and needs to rewind.

This method is always called by a thread owning the lock on the subreport filler.

Specified by:

cancel in interface JRSubreportRunner

Throws:

JRException

suspend

public void suspend()
             throws JRException

Description copied from interface: JRSubreportRunner

Suspends the current fill.

This method is called when the subreport reaches the end of a page and needs to wait for the master to create a new page.

This method is always called by a thread owning the lock on the subreport filler.

Specified by:

suspend in interface JRSubreportRunner

Throws:

JRException

run

public void run()

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class JRSubreportRunnable