uk.ac.ed.epcc.webapp.model.data.transition

Class AbstractIndexedTransitionProvider<T extends Indexed,K>

java.lang.Object

uk.ac.ed.epcc.webapp.AbstractContexed

uk.ac.ed.epcc.webapp.model.data.transition.AbstractIndexedTransitionProvider<T,K>

Type Parameters:

T - target type

K -

All Implemented Interfaces:

Contexed, TransitionFactory<K,T>, TransitionProvider<K,T>

Direct Known Subclasses:

AbstractViewIndexedTransitionProvider

public abstract class AbstractIndexedTransitionProvider<T extends Indexed,K>
extends AbstractContexed
implements TransitionProvider<K,T>

Abstract base class for building TransitionProviders on Indexed objects. unlike SimpleTransitionProvider this makes no assumption about the type used as the key

Field Summary

Fields

Modifier and Type	Field and Description
static Feature	USE_NAME_PARSER

Fields inherited from class uk.ac.ed.epcc.webapp.AbstractContexed

conn

Constructor Summary

Constructors

Constructor and Description
AbstractIndexedTransitionProvider(AppContext c, IndexedProducer<? extends T> fac, java.lang.String target_name)

Method Summary

Modifier and Type	Method and Description
<R> R	accept(TransitionFactoryVisitor<R,T,K> vis) Accept a TransitionFactoryVisitor.
java.lang.String	getID(T target) Get the id string for form posts from a target
static <T extends Indexed> java.lang.String	getIndexedID(AppContext c, IndexedProducer<? extends T> fac, T target) default rule for generating an ID string for and Indexed
static <T extends Indexed> T	getIndexedTarget(AppContext c, IndexedProducer<? extends T> fac, java.lang.String id) default rule for generating an Indexed from a String.
IndexedProducer<? extends T>	getProducer()
T	getTarget(java.lang.String id) Find target type by id string
java.lang.String	getTargetName() What is the name for this type of transition.

Methods inherited from class uk.ac.ed.epcc.webapp.AbstractContexed

getContext, getLogger, resetLogger

Methods inherited from class java.lang.Object

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

Methods inherited from interface uk.ac.ed.epcc.webapp.forms.transition.TransitionFactory

allowTransition, getSummaryContent, getTransition, getTransitions, lookupTransition

Methods inherited from interface uk.ac.ed.epcc.webapp.Contexed

getContext

Field Detail

USE_NAME_PARSER

public static final Feature USE_NAME_PARSER

Constructor Detail

AbstractIndexedTransitionProvider

public AbstractIndexedTransitionProvider(AppContext c,
                                         IndexedProducer<? extends T> fac,
                                         java.lang.String target_name)

Method Detail

getID

public final java.lang.String getID(T target)

Description copied from interface: TransitionProvider

Get the id string for form posts from a target

Specified by:

getID in interface TransitionProvider<K,T extends Indexed>

Returns:

id value

getIndexedID

public static <T extends Indexed> java.lang.String getIndexedID(AppContext c,
                                                                IndexedProducer<? extends T> fac,
                                                                T target)

default rule for generating an ID string for and Indexed

Parameters:

target -

Returns:

getProducer

public final IndexedProducer<? extends T> getProducer()

getTarget

public final T getTarget(java.lang.String id)

Description copied from interface: TransitionProvider

Find target type by id string

Specified by:

getTarget in interface TransitionProvider<K,T extends Indexed>

Returns:

target or null

getIndexedTarget

public static <T extends Indexed> T getIndexedTarget(AppContext c,
                                                     IndexedProducer<? extends T> fac,
                                                     java.lang.String id)

default rule for generating an Indexed from a String.

Parameters:

id -

Returns:

getTargetName

public final java.lang.String getTargetName()

Description copied from interface: TransitionFactory

What is the name for this type of transition. This value needs to resolve to the TransitionProvider in the TransitionServlet The value can also be used as the user presented text for the type of object in the title of the transition form page though this can be overridden by setting target-name.transition_title

Specified by:

getTargetName in interface TransitionFactory<K,T extends Indexed>

Returns:

String

accept

public final <R> R accept(TransitionFactoryVisitor<R,T,K> vis)

Description copied from interface: TransitionFactory

Accept a TransitionFactoryVisitor. Any code that depends on the particular sub-interface of TransitionFactory should implement TransitionFactoryVisitor this ensures it will always handle all possible sub-classes.

Specified by:

accept in interface TransitionFactory<K,T extends Indexed>

Specified by:

accept in interface TransitionProvider<K,T extends Indexed>

Returns: