Package org.epics.pvdata.property

Class PVDisplayFactory

java.lang.Object

org.epics.pvdata.property.PVDisplayFactory

All Implemented Interfaces:

PVDisplay

public final class PVDisplayFactory
extends Object
implements PVDisplay

Implementation of PVDisplay.

Author:

mrk

Constructor Summary

Constructors

Constructor	Description
PVDisplayFactory()

Method Summary

Modifier and Type	Method	Description
boolean	attach(PVField pvField)	Attempt to attach to a display field.
static PVDisplay	create()	Create a PVDisplay.
void	detach()	Remove attachment to display field.
void	get(Display display)	Get the display values from the attached display field and write to the specified Display.
boolean	isAttached()	Is this attached to a display structure.
boolean	set(Display display)	Set the display.

Methods inherited from class java.lang.Object

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

Constructor Detail

PVDisplayFactory

public PVDisplayFactory()

Method Detail

create

public static PVDisplay create()

Create a PVDisplay.

Returns:

the newly created PVDisplay

attach

public boolean attach(PVField pvField)

Description copied from interface: PVDisplay

Attempt to attach to a display field. The field must either be an display field itself or the field must be named value and a display is found somewhere up the parent tree.

Specified by:

attach in interface PVDisplay

Parameters:

pvField - the field for which to find a display field

Returns:

(false,true) if display field (not found, found)

detach

public void detach()

Description copied from interface: PVDisplay

Remove attachment to display field.

Specified by:

detach in interface PVDisplay

isAttached

public boolean isAttached()

Description copied from interface: PVDisplay

Is this attached to a display structure.

Specified by:

isAttached in interface PVDisplay

Returns:

(false,true) is (not, is) attached to a display structure.

get

public void get(Display display)

Description copied from interface: PVDisplay

Get the display values from the attached display field and write to the specified Display.

Specified by:

get in interface PVDisplay

Parameters:

display - the Display to be updated

set

public boolean set(Display display)

Description copied from interface: PVDisplay

Set the display.

Specified by:

set in interface PVDisplay

Parameters:

display - the new value

Returns:

(false,true) if the display field is (immutable,updated).