org.epics.pvaClient

Class PvaClientNTMultiMonitor

java.lang.Object

org.epics.pvaClient.PvaClientNTMultiMonitor

public class PvaClientNTMultiMonitor
extends Object

Provides a channel monitor to multiple channels where the value field of each channel is presented as a union. /**

Since:

2015.06

Author:

mrk

Method Summary

Modifier and Type	Method and Description
void	connect() Create a channel monitor for each channel.
static PvaClientNTMultiMonitor	create(PvaClientMultiChannel pvaClientMultiChannel, PvaClientChannel[] pvaClientChannelArray, org.epics.pvdata.pv.PVStructure pvRequest) Factory method that creates a PvaClientNTMultiMonitor.
void	destroy() Destroy the pvAccess connection.
PvaClientNTMultiData	getData() get the data.
boolean	poll() poll each channel.
boolean	waitEvent(double waitForEvent) Wait until poll returns true.

Methods inherited from class java.lang.Object

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

Method Detail

create

public static PvaClientNTMultiMonitor create(PvaClientMultiChannel pvaClientMultiChannel,
                                             PvaClientChannel[] pvaClientChannelArray,
                                             org.epics.pvdata.pv.PVStructure pvRequest)

Factory method that creates a PvaClientNTMultiMonitor.

Parameters:

pvaClientMultiChannel - The interface to PvaClientMultiChannel.

pvaClientChannelArray - The PvaClientChannel array.

pvRequest - The pvRequest for each channel.

Returns:

The interface.

destroy

public void destroy()

Destroy the pvAccess connection.

connect

public void connect()

Create a channel monitor for each channel.

poll

public boolean poll()

poll each channel. If any has new data it is used to update the double[].

Returns:

(false,true) if (no, at least one) value was updated.

waitEvent

public boolean waitEvent(double waitForEvent)

Wait until poll returns true.

Parameters:

waitForEvent - The time to keep trying. A thread sleep of .1 seconds occurs between each call to poll.

Returns:

(false,true) if (timeOut, poll returned true).

getData

public PvaClientNTMultiData getData()

get the data.

Returns:

the pvaClientNTMultiData.