Package org.epics.pvdata.property

Class PVControlFactory

java.lang.Object

org.epics.pvdata.property.PVControlFactory

All Implemented Interfaces:

PVControl

public final class PVControlFactory
extends Object
implements PVControl

Implementation of PVControl.

Author:

mrk

Constructor Summary

Constructors

Constructor	Description
PVControlFactory()

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Detail

PVControlFactory

public PVControlFactory()

Method Detail

create

public static PVControl create()

Create a PVControl.

Returns:

the newly created PVControl

attach

public boolean attach(PVField pvField)

Description copied from interface: PVControl

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

Specified by:

attach in interface PVControl

Parameters:

pvField - The field for which to find a control field,

Returns:

(false,true) if control field (not found, found).

detach

public void detach()

Description copied from interface: PVControl

Remove attachment to control field.

Specified by:

detach in interface PVControl

isAttached

public boolean isAttached()

Description copied from interface: PVControl

Is this attached to a control structure.

Specified by:

isAttached in interface PVControl

Returns:

(false,true) is (not, is) attached to a control structure

get

public void get(Control control)

Description copied from interface: PVControl

Get the control values from the attached control field and write to the specified Control.

Specified by:

get in interface PVControl

Parameters:

control - the Control to be updated

set

public boolean set(Control control)

Description copied from interface: PVControl

Set the control.

Specified by:

set in interface PVControl

Parameters:

control - the new value

Returns:

(false,true) if the control field is (immutable,updated)