org.das2.dataset
Class DataRequestThread

java.lang.Object
  java.lang.Thread
      org.das2.dataset.DataRequestThread

All Implemented Interfaces:

java.lang.Runnable

public class DataRequestThread
extends java.lang.Thread

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

DataRequestThread()
Creates a new instance of DataRequestThread

Method Summary

void	cancelCurrentRequest()
void	request(DataSetDescriptor dsd, Datum start, Datum end, Datum resolution, DataRequestor requestor, ProgressMonitor monitor) Begins a data reqest operation that will be executed in a separate thread and pass the resulting DataSet to the org.das2.event.DataRequestListener#finished(org.das2.event.DataRequestEvent) finished() method of the DataRequestor specified.
void	requestAndWait(DataSetDescriptor dsd, java.lang.Object params, Datum start, Datum end, Datum resolution, DataRequestor requestor, ProgressMonitor monitor) Begins a data reqest operation that will be executed in a separate thread and pass the resulting DataSet to the org.das2.event.DataRequestListener#finished(org.das2.event.DataRequestEvent) finished() method of the DataRequestor specified.
void	run()

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

DataRequestThread

public DataRequestThread()

Creates a new instance of DataRequestThread

Method Detail

request

public void request(DataSetDescriptor dsd,
                    Datum start,
                    Datum end,
                    Datum resolution,
                    DataRequestor requestor,
                    ProgressMonitor monitor)
             throws java.lang.InterruptedException

Begins a data reqest operation that will be executed in a separate thread and pass the resulting DataSet to the org.das2.event.DataRequestListener#finished(org.das2.event.DataRequestEvent) finished() method of the DataRequestor specified.

Parameters:

dsd - the DataSetDescriptor used to obtain the DataSet

start - the start of the requested time interval

end - the end of the requested time interval

resolution - the requested resolution of the data set

requestor - DataRequestor that is notified when the data loading operation is complete.

Throws:

java.lang.InterruptedException

requestAndWait

public void requestAndWait(DataSetDescriptor dsd,
                           java.lang.Object params,
                           Datum start,
                           Datum end,
                           Datum resolution,
                           DataRequestor requestor,
                           ProgressMonitor monitor)
                    throws java.lang.InterruptedException

Begins a data reqest operation that will be executed in a separate thread and pass the resulting DataSet to the org.das2.event.DataRequestListener#finished(org.das2.event.DataRequestEvent) finished() method of the DataRequestor specified. This method does not return until after the data loading is complete or the request had been canceled.

Parameters:

dsd - the DataSetDescriptor used to obtain the DataSet

params - extra parameters passed to the DataSetDescriptor#getDataSet(org.das2.util.Datum,org.das2.util.Datum,org.das2.util.Datum,org.das2.util.monitor.ProgressMonitor) getDataSet() method. (TODO: these are ignored)

start - the start of the requested time interval

end - the end of the requested time interval

resolution - the requested resolution of the data set

requestor - DataRequestor that is notified when the data loading operation is complete.

Throws:

java.lang.InterruptedException

cancelCurrentRequest

public void cancelCurrentRequest()
                          throws java.lang.InterruptedException

Throws:

java.lang.InterruptedException

run

public void run()

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread