org.epics.pvmanager
Class PVReaderConfiguration<T>

java.lang.Object
  org.epics.pvmanager.PVReaderConfiguration<T>

Type Parameters:

T - the type of the expression

public class PVReaderConfiguration<T>
extends java.lang.Object

An expression used to set the final parameters on how the pv expression should be monitored.

Author:

carcassi

from

public PVReaderConfiguration<T> from(DataSource dataSource)

Defines which DataSource should be used to read the data.

Parameters:

dataSource - a connection manager

Returns:

this

notifyOn

public PVReaderConfiguration<T> notifyOn(java.util.concurrent.Executor onThread)

Defines on which thread the PVManager should notify the client.

Parameters:

onThread - the thread on which to notify

Returns:

this

timeout

public PVReaderConfiguration<T> timeout(TimeDuration timeout)

timeout

public PVReaderConfiguration<T> timeout(TimeDuration timeout,
                                        java.lang.String timeoutMessage)

routeExceptionsTo

public PVReaderConfiguration<T> routeExceptionsTo(ExceptionHandler exceptionHandler)

Forwards exception to the given exception handler. No thread switch is done, so the handler is notified on the thread where the exception was thrown.

Giving a custom exception handler will disable the default handler, so PVReader.lastException() is no longer set and no notification is done.

Parameters:

exceptionHandler - an exception handler

Returns:

this

maxRate

public PVReader<T> maxRate(TimeDuration rate)

Sets the rate of scan of the expression and creates the actual PVReader object that can be monitored through listeners.

Parameters:

rate - the minimum time distance (i.e. the maximum rate) between two different notifications

Returns:

the PVReader

every

@Deprecated
public PVReader<T> every(TimeDuration period)

Deprecated. 

Sets the rate of scan of the expression and creates the actual PVReader object that can be monitored through listeners.

Parameters:

period - the minimum time distance (i.e. the maximum rate) at which notifications should be sent

Returns:

the PVReader