Package gda.epics.connection

Class GRHandler

java.lang.Object

gda.epics.connection.CompoundDataTypeHandler

gda.epics.connection.STSHandler

gda.epics.connection.GRHandler

Direct Known Subclasses:

CTRLHandler

public class GRHandler
extends STSHandler

GRHandler Class

Method Summary

Modifier and Type	Method	Description
protected gov.aps.jca.dbr.DBR	getCompoundData(gov.aps.jca.Channel ch)	returns a compound DBR value of the channel, including value, alarm status, alarm severity, units, display precision, and graphic limits.
static gov.aps.jca.dbr.DBRType	getGRType(gov.aps.jca.Channel ch)	returns the GR DBRType of the channel that corresponds to its native primiary type.
Number	getLowerAlarmLimit(gov.aps.jca.Channel ch)	returns the lower Alarm limit of this channel as Number directly from EPICS server via compound DBR access.
static Number	getLowerAlarmLimit(gov.aps.jca.dbr.DBR dbr)	returns the lower alarm limit of the DBR in Number type if the DBR is of GR type.
Number	getLowerDispLimit(gov.aps.jca.Channel ch)	returns the lower display limit of this channel as Number directly from EPICS server via compound DBR access.
static Number	getLowerDispLimit(gov.aps.jca.dbr.DBR dbr)	returns the lower display limit of the DBR in Number type if the DBR is of GR type.
Number	getLowerWarningLimit(gov.aps.jca.Channel ch)	returns the lower warning limit of this channel as Number directly from EPICS server via compound DBR access.
static Number	getLowerWarningLimit(gov.aps.jca.dbr.DBR dbr)	returns the lower warning limit of the DBR in Number type if the DBR is of GR type.
String	getUnits(gov.aps.jca.Channel ch)	returns the unit of this channel directly from EPICS server via compound DBR access.
static String	getUnits(gov.aps.jca.dbr.DBR dbr)	returns the unit of the DBR if the DBR is of GR type.
Number	getUpperAlarmLimit(gov.aps.jca.Channel ch)	returns the upper alarm limit of this channel as Number directly from EPICS server via compound DBR access.
static Number	getUpperAlarmLimit(gov.aps.jca.dbr.DBR dbr)	returns the upper alarm limit of the DBR as Number if the DBR is of GR type.
Number	getUpperDispLimit(gov.aps.jca.Channel ch)	returns the upper display limit of this channel as Number directly from EPICS server via compound DBR access.
static Number	getUpperDispLimit(gov.aps.jca.dbr.DBR dbr)	returns the upper display limit of the DBR in Number type if the DBR is of GR type.
Number	getUpperWarningLimit(gov.aps.jca.Channel ch)	returns the upper warning limit of this channel as Number directly from EPICS server via compound DBR access.
static Number	getUpperWarningLimit(gov.aps.jca.dbr.DBR dbr)	returns the upper warning limit of the DBR in Number type if the DBR is of GR type.

Methods inherited from class gda.epics.connection.STSHandler

getSeverity, getSeverity, getStatus, getStatus, getSTSType

Methods inherited from class gda.epics.connection.CompoundDataTypeHandler

getByte, getByte, getDouble, getDouble, getEnum, getEnum, getFloat, getFloat, getInt, getInt, getShort, getShort, getString, getString

Methods inherited from class java.lang.Object

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

Method Details

getUnits

public String getUnits(gov.aps.jca.Channel ch)
                throws gov.aps.jca.CAException,
gov.aps.jca.TimeoutException,
InterruptedException

returns the unit of this channel directly from EPICS server via compound DBR access.

Parameters:

ch - the CA channel

Returns:

The Unit of this channel

Throws:

gov.aps.jca.CAException

gov.aps.jca.TimeoutException

InterruptedException

getLowerDispLimit

public Number getLowerDispLimit(gov.aps.jca.Channel ch)
                         throws gov.aps.jca.CAException,
gov.aps.jca.TimeoutException,
InterruptedException

returns the lower display limit of this channel as Number directly from EPICS server via compound DBR access.

Parameters:

ch - the CA channel

Returns:

the lower display limit, i.e. LOPR

Throws:

gov.aps.jca.CAException

gov.aps.jca.TimeoutException

InterruptedException

getUpperDispLimit

public Number getUpperDispLimit(gov.aps.jca.Channel ch)
                         throws gov.aps.jca.CAException,
gov.aps.jca.TimeoutException,
InterruptedException

returns the upper display limit of this channel as Number directly from EPICS server via compound DBR access.

Parameters:

ch - the CA channel

Returns:

the upper display limit, i.e. HOPR

Throws:

gov.aps.jca.CAException

gov.aps.jca.TimeoutException

InterruptedException

getLowerAlarmLimit

public Number getLowerAlarmLimit(gov.aps.jca.Channel ch)
                          throws gov.aps.jca.CAException,
gov.aps.jca.TimeoutException,
InterruptedException

returns the lower Alarm limit of this channel as Number directly from EPICS server via compound DBR access.

Parameters:

ch - the CA channel

Returns:

the lower alarm limit

Throws:

gov.aps.jca.CAException

gov.aps.jca.TimeoutException

InterruptedException

getUpperAlarmLimit

public Number getUpperAlarmLimit(gov.aps.jca.Channel ch)
                          throws gov.aps.jca.CAException,
gov.aps.jca.TimeoutException,
InterruptedException

returns the upper alarm limit of this channel as Number directly from EPICS server via compound DBR access.

Parameters:

ch - the CA channel

Returns:

the upper alarm limit

Throws:

gov.aps.jca.CAException

gov.aps.jca.TimeoutException

InterruptedException

getLowerWarningLimit

public Number getLowerWarningLimit(gov.aps.jca.Channel ch)
                            throws gov.aps.jca.CAException,
gov.aps.jca.TimeoutException,
InterruptedException

returns the lower warning limit of this channel as Number directly from EPICS server via compound DBR access.

Parameters:

ch - the CA channel

Returns:

the lower warning limit

Throws:

gov.aps.jca.CAException

gov.aps.jca.TimeoutException

InterruptedException

getUpperWarningLimit

public Number getUpperWarningLimit(gov.aps.jca.Channel ch)
                            throws gov.aps.jca.CAException,
gov.aps.jca.TimeoutException,
InterruptedException

returns the upper warning limit of this channel as Number directly from EPICS server via compound DBR access.

Parameters:

ch - the CA channel

Returns:

the upper warning limit

Throws:

gov.aps.jca.CAException

gov.aps.jca.TimeoutException

InterruptedException

getUnits

public static String getUnits(gov.aps.jca.dbr.DBR dbr)

returns the unit of the DBR if the DBR is of GR type.

Parameters:

dbr - the compound GR type DBR, i.e. DBR_GR_XXXX

Returns:

the unit string

getLowerDispLimit

public static Number getLowerDispLimit(gov.aps.jca.dbr.DBR dbr)

returns the lower display limit of the DBR in Number type if the DBR is of GR type.

Parameters:

dbr - the compound GR type DBR, i.e. DBR_GR_XXXX

Returns:

the lower display limit, i.e. LOPR

getUpperDispLimit

public static Number getUpperDispLimit(gov.aps.jca.dbr.DBR dbr)

returns the upper display limit of the DBR in Number type if the DBR is of GR type.

Parameters:

dbr - the compound GR type DBR, i.e. DBR_GR_XXXX

Returns:

the upper display limit, i.e. HOPR

getLowerAlarmLimit

public static Number getLowerAlarmLimit(gov.aps.jca.dbr.DBR dbr)

returns the lower alarm limit of the DBR in Number type if the DBR is of GR type.

Parameters:

dbr - the compound GR type DBR, i.e. DBR_GR_XXXX

Returns:

the lower alarm limit

getUpperAlarmLimit

public static Number getUpperAlarmLimit(gov.aps.jca.dbr.DBR dbr)

returns the upper alarm limit of the DBR as Number if the DBR is of GR type.

Parameters:

dbr - the compound GR type DBR, i.e. DBR_GR_XXXX

Returns:

the upper alarm limit

getLowerWarningLimit

public static Number getLowerWarningLimit(gov.aps.jca.dbr.DBR dbr)

returns the lower warning limit of the DBR in Number type if the DBR is of GR type.

Parameters:

dbr - the compound GR type DBR, i.e. DBR_GR_XXXX

Returns:

the lower warning limit

getUpperWarningLimit

public static Number getUpperWarningLimit(gov.aps.jca.dbr.DBR dbr)

returns the upper warning limit of the DBR in Number type if the DBR is of GR type.

Parameters:

dbr - the compound GR type DBR, i.e. DBR_GR_XXXX

Returns:

the upper warning limit.

getCompoundData

protected gov.aps.jca.dbr.DBR getCompoundData(gov.aps.jca.Channel ch)
                                       throws gov.aps.jca.CAException,
gov.aps.jca.TimeoutException,
InterruptedException

returns a compound DBR value of the channel, including value, alarm status, alarm severity, units, display precision, and graphic limits. implements the abstract base class method.

Overrides:

getCompoundData in class STSHandler

Parameters:

ch - channel

Returns:

a compound DBR value

Throws:

gov.aps.jca.CAException

gov.aps.jca.TimeoutException

InterruptedException

getGRType

public static gov.aps.jca.dbr.DBRType getGRType(gov.aps.jca.Channel ch)

returns the GR DBRType of the channel that corresponds to its native primiary type. This method ensures the automatic type conversion between primiary types is always avoided during the channel request.

Parameters:

ch - the CA channel

Returns:

the GR DBRType, i.e. DBR_GR_XXXX