org.nakedobjects.metamodel.spec.feature
Interface NakedObjectActionParameter

All Superinterfaces:

CurrentHolder, FacetHolder, Identified, NakedObjectFeature, NamedAndDescribed, Specification, TypedSpecification

All Known Subinterfaces:

OneToOneActionParameter, ParseableEntryActionParameter

All Known Implementing Classes:

NakedObjectActionParameterAbstract, NakedObjectActionParameterParseable, OneToOneActionParameterImpl

public interface NakedObjectActionParameter
extends NakedObjectFeature, NamedAndDescribed, CurrentHolder

Analogous to NakedObjectAssociation.

Method Summary

ActionArgumentContext	createProposedArgumentInteractionContext(AuthenticationSession session, InteractionInvocationMethod invocationMethod, NakedObject targetObject, NakedObject[] args, int position)
NakedObjectAction	getAction() Owning NakedObjectAction.
NakedObject[]	getChoices(NakedObject nakedObject)
NakedObject	getDefault(NakedObject nakedObject)
int	getNumber() Returns the 0-based index to this parameter.
boolean	isCollection() Only for symmetry with NakedObjectAssociation, however since the NOF does not support collections as actions all implementations should return false.
boolean	isObject() If true then can cast to a OneToOneActionParameter.
boolean	isOptional() Returns a flag indicating if it can be left unset when the action can be invoked.
java.lang.String	isValid(NakedObject nakedObject, java.lang.Object proposedValue) Whether proposed value for this parameter is valid.

Methods inherited from interface org.nakedobjects.metamodel.spec.TypedSpecification

getSpecification

Methods inherited from interface org.nakedobjects.metamodel.spec.Specification

getInstance

Methods inherited from interface org.nakedobjects.metamodel.spec.identifier.Identified

getIdentifier

Methods inherited from interface org.nakedobjects.metamodel.facets.FacetHolder

addFacet, addFacet, containsFacet, getFacet, getFacets, getFacetTypes, removeFacet, removeFacet

Methods inherited from interface org.nakedobjects.metamodel.spec.NamedAndDescribed

getDescription, getName

Methods inherited from interface org.nakedobjects.metamodel.spec.feature.CurrentHolder

get

Method Detail

isObject

boolean isObject()

If true then can cast to a OneToOneActionParameter.

Either this or isCollection() will be true.

Design note: modelled after NakedObjectAssociation#isObject()

isCollection

boolean isCollection()

Only for symmetry with NakedObjectAssociation, however since the NOF does not support collections as actions all implementations should return false.

getAction

NakedObjectAction getAction()

Owning NakedObjectAction.

isOptional

boolean isOptional()

Returns a flag indicating if it can be left unset when the action can be invoked.

getNumber

int getNumber()

Returns the 0-based index to this parameter.

createProposedArgumentInteractionContext

ActionArgumentContext createProposedArgumentInteractionContext(AuthenticationSession session,
                                                               InteractionInvocationMethod invocationMethod,
                                                               NakedObject targetObject,
                                                               NakedObject[] args,
                                                               int position)

isValid

java.lang.String isValid(NakedObject nakedObject,
                         java.lang.Object proposedValue)

Whether proposed value for this parameter is valid.

Parameters:

nakedObject -

proposedValue -

Returns:

getChoices

NakedObject[] getChoices(NakedObject nakedObject)

getDefault

NakedObject getDefault(NakedObject nakedObject)