uk.ac.ed.epcc.webapp.forms.factory

Class UpdateForm<T>

java.lang.Object

uk.ac.ed.epcc.webapp.forms.factory.UpdateForm<T>

Type Parameters:

T - type of object being updated

public class UpdateForm<T>
extends java.lang.Object

UpdateForm is handler class for updating Objects where the Factory can provide a class implementing FormUpdate it is independent of the type of Form used Almost all the functionality is in the FormUpdate object but this class also holds the state of the currently selected Object.

Constructor Summary

Constructors

Constructor and Description
UpdateForm(java.lang.String label, FormUpdate<T> fac)

Method Summary

Modifier and Type	Method and Description
void	buildSelectForm(Form f) build a form to select a DataObject managed by the updater
AppContext	getContext()
FormUpdate<T>	getFormUpdate() Get the underlying FormUpdate object.
protected Logger	getLogger()
protected T	getObject() return the target DataObject
java.lang.String	getTypeName()
boolean	haveTarget() Do we know which object we are editing yet.
void	setObject(Form f) set the edit object based on the selection form.
void	setObject(T dat) Set the Object to edit.

Methods inherited from class java.lang.Object

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

Constructor Detail

UpdateForm

public UpdateForm(java.lang.String label,
                  FormUpdate<T> fac)

Method Detail

getTypeName

public java.lang.String getTypeName()

getFormUpdate

public FormUpdate<T> getFormUpdate()

Get the underlying FormUpdate object.

Returns:

FormUpdate

buildSelectForm

public void buildSelectForm(Form f)

build a form to select a DataObject managed by the updater

Parameters:

f - The select form

getContext

public AppContext getContext()

getLogger

protected final Logger getLogger()

getObject

protected T getObject()

return the target DataObject

Returns:

target DataObject

haveTarget

public boolean haveTarget()

Do we know which object we are editing yet.

Returns:

boolean true if target object is known

setObject

public void setObject(Form f)

set the edit object based on the selection form.

Parameters:

f - the validated select Form

setObject

public void setObject(T dat)

Set the Object to edit. Use this if we already know which object we want to edit The alternative is to use the built-in select form methods.

Parameters:

dat - Object to edit