org.geotools.swt.control
Class ParamField

Object
  extended by ParamField
Direct Known Subclasses:
JDoubleField, JField, JFileField, JGeometryField, JURLField

public abstract class ParamField
extends Object

Super class that provides additional helper methods useful when implementing your own ParamWidget.

Author:
gdavis

Field Summary
protected  Parameter<?> parameter
           
protected  Composite parent
           
 
Method Summary
static ParamField create(Composite parent, Parameter<?> parameter)
          Factory method creating the appropriate ParamField for the supplied Param.
abstract  Control doLayout()
          Called to build the widget, initialize it (setting defaults or whatever) and setup any listeners needed for validation of the widget value.
abstract  Object getValue()
          Returns the current value of the widget.
abstract  void setValue(Object value)
          Sets the value of the widget.
abstract  boolean validate()
          Validates the current value of the widget, returns false if not valid, true otherwise
 
Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

parameter

protected Parameter<?> parameter

parent

protected Composite parent
Method Detail

doLayout

public abstract Control doLayout()
Called to build the widget, initialize it (setting defaults or whatever) and setup any listeners needed for validation of the widget value. The returned JComponent will contain the widget for editing.

Returns:
JComponent or null if error

validate

public abstract boolean validate()
Validates the current value of the widget, returns false if not valid, true otherwise

Returns:
boolean if validated

setValue

public abstract void setValue(Object value)
Sets the value of the widget.

Parameters:
Object - an object containing the value to set for the widget

getValue

public abstract Object getValue()
Returns the current value of the widget.

Returns:
Object representing the current value of the widget

create

public static ParamField create(Composite parent,
                                Parameter<?> parameter)
Factory method creating the appropriate ParamField for the supplied Param.

Parameters:
param -
Returns:


Copyright © 1996-2014 Geotools. All Rights Reserved.