uk.ac.ed.epcc.webapp.session

Class RoleUpdate<U extends AppUser>

java.lang.Object

uk.ac.ed.epcc.webapp.session.RoleUpdate<U>

All Implemented Interfaces:

Contexed, EditFormBuilder<U>, FormFactory, FormUpdate<U>, StandAloneFormUpdate<U>, TypeConverter<U,java.lang.Number>, IndexedProducer<U>, Targetted<U>

public class RoleUpdate<U extends AppUser>
extends java.lang.Object
implements Contexed, StandAloneFormUpdate<U>, IndexedProducer<U>

Constructor Summary

Constructors

Constructor and Description
RoleUpdate(AppContext conn)

Method Summary

Modifier and Type	Method and Description
void	buildSelectForm(Form f, java.lang.String label, U dat) Build a form to select object to edit
void	buildUpdateForm(java.lang.String type_name, Form f, U dat, SessionService<?> operator) Build a form for updating an object including the action buttons.
U	find(int id)
U	find(java.lang.Number o) Find the required object.
AppContext	getContext()
java.lang.String	getID(U obj) Generate the default text identifier of the client object for contexts where the type is unambiguous.
java.lang.Integer	getIndex(U value) Get the underlying data representation corresponding to the value
U	getSelected(Form f) read the Object to edit out of the validated Selector form.
java.lang.Class<U>	getTarget() Get a class object that all results of the producer are assignable to.
boolean	isMyReference(IndexedReference ref) Test if an IndexedReference belongs to this producer.
IndexedReference<U>	makeReference(int id) Make and IndexedReferencce from an integer id.
IndexedReference<U>	makeReference(U obj) Make a IndexedReference from a target object

Methods inherited from class java.lang.Object

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

Constructor Detail

RoleUpdate

public RoleUpdate(AppContext conn)

Method Detail

buildSelectForm

public void buildSelectForm(Form f,
                            java.lang.String label,
                            U dat)

Description copied from interface: FormUpdate

Build a form to select object to edit

Specified by:

buildSelectForm in interface FormUpdate<U extends AppUser>

Parameters:

f - Form to build

label - label to use for selector

dat - default Object to edit if we know it already

buildUpdateForm

public void buildUpdateForm(java.lang.String type_name,
                            Form f,
                            U dat,
                            SessionService<?> operator)
                     throws DataFault

Description copied from interface: EditFormBuilder

Build a form for updating an object including the action buttons.

Specified by:

buildUpdateForm in interface EditFormBuilder<U extends AppUser>

Parameters:

type_name - String name of target type to be presented to user

f - Form to build

dat - Object we are editing.

operator - person editing the form

Throws:

DataFault

getSelected

public U getSelected(Form f)

Description copied from interface: FormUpdate

read the Object to edit out of the validated Selector form.

Specified by:

getSelected in interface FormUpdate<U extends AppUser>

Returns:

Object to edit

getContext

public AppContext getContext()

Specified by:

getContext in interface Contexed

Specified by:

getContext in interface FormFactory

find

public U find(int id)
       throws DataException

Specified by:

find in interface IndexedProducer<U extends AppUser>

Throws:

DataException

getTarget

public java.lang.Class<U> getTarget()

Description copied from interface: IndexedProducer

Get a class object that all results of the producer are assignable to. This is intended for run-time type checking so it should be as specific as possible

Specified by:

getTarget in interface IndexedProducer<U extends AppUser>

Specified by:

getTarget in interface Targetted<U extends AppUser>

Returns:

Class object for target

makeReference

public IndexedReference<U> makeReference(U obj)

Description copied from interface: IndexedProducer

Make a IndexedReference from a target object

Specified by:

makeReference in interface IndexedProducer<U extends AppUser>

Returns:

IndexedReference

makeReference

public IndexedReference<U> makeReference(int id)

Description copied from interface: IndexedProducer

Make and IndexedReferencce from an integer id.

Specified by:

makeReference in interface IndexedProducer<U extends AppUser>

Returns:

IndexedReference

isMyReference

public boolean isMyReference(IndexedReference ref)

Description copied from interface: IndexedProducer

Test if an IndexedReference belongs to this producer. This returns false for any null reference.

Specified by:

isMyReference in interface IndexedProducer<U extends AppUser>

Returns:

boolean

find

public U find(java.lang.Number o)

Description copied from interface: TypeConverter

Find the required object.

Specified by:

find in interface TypeConverter<U extends AppUser,java.lang.Number>

Parameters:

o - Value of the database field

Returns:

Target value or null if invalid

getIndex

public java.lang.Integer getIndex(U value)

Description copied from interface: TypeConverter

Get the underlying data representation corresponding to the value

Specified by:

getIndex in interface TypeConverter<U extends AppUser,java.lang.Number>

Returns:

Field value or null if invalid

getID

public java.lang.String getID(U obj)

Description copied from interface: IndexedProducer

Generate the default text identifier of the client object for contexts where the type is unambiguous. This is used in urls and html inputs. Normally this should generate the String representation of the integer id. if it generates anything else the IndexedProducer should implement ParseFactory to be able to parse the alternative form.

Specified by:

getID in interface IndexedProducer<U extends AppUser>

Returns: