org.nakedobjects.metamodel.runtimecontext.spec.feature
Class NakedObjectAssociationAbstract

java.lang.Object
  org.nakedobjects.metamodel.runtimecontext.spec.feature.NakedObjectMemberAbstract
      org.nakedobjects.metamodel.runtimecontext.spec.feature.NakedObjectAssociationAbstract

All Implemented Interfaces:

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

Direct Known Subclasses:

OneToManyAssociationImpl, OneToOneAssociationImpl

public abstract class NakedObjectAssociationAbstract
extends NakedObjectMemberAbstract
implements NakedObjectAssociation

Nested Class Summary

Nested classes/interfaces inherited from class org.nakedobjects.metamodel.runtimecontext.spec.feature.NakedObjectMemberAbstract

NakedObjectMemberAbstract.MemberType

Field Summary

Fields inherited from class org.nakedobjects.metamodel.runtimecontext.spec.feature.NakedObjectMemberAbstract

defaultName

Constructor Summary

NakedObjectAssociationAbstract(java.lang.String associationId, NakedObjectSpecification specification, NakedObjectMemberAbstract.MemberType memberType, Identified facetHolder, RuntimeContext runtimeContext)

Method Summary

abstract NakedObject	get(NakedObject fromObject) Returns the referenced NakedObject for the owning NakedObject.
java.lang.String	getBusinessKeyName() Get the name for the business key, if one has been specified.
NakedObjectSpecification	getSpecification() Return the specification of the object (or objects) that this field holds.
boolean	hasChoices() Whether there are any choices provided (eg choicesXxx supporting method) for the association.
abstract boolean	isEmpty(NakedObject adapter) Returns true if this field on the specified object is deemed to be empty, or has no content.
boolean	isMandatory() Determines if this field must be complete before the object is in a valid state
boolean	isNotDerived() Returns true if not calculated from other data in the object, that is, should be persisted.
boolean	isOneToOneAssociation() Whether this member represents a OneToOneAssociation.

Methods inherited from class org.nakedobjects.metamodel.runtimecontext.spec.feature.NakedObjectMemberAbstract

addFacet, addFacet, containsFacet, getAuthenticationSession, getDescription, getFacet, getFacets, getFacetTypes, getHelp, getId, getIdentifier, getName, getRuntimeContext, isAction, isAssociation, isOneToManyAssociation, isUsable, isVisible, removeFacet, removeFacet, toString

Methods inherited from class java.lang.Object

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

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

getChoices, getDefault, toDefault

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

createUsableInteractionContext, createVisibleInteractionContext, debugData, getHelp, getId, isAction, isAssociation, isOneToManyAssociation, isUsable, isVisible

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

Constructor Detail

NakedObjectAssociationAbstract

public NakedObjectAssociationAbstract(java.lang.String associationId,
                                      NakedObjectSpecification specification,
                                      NakedObjectMemberAbstract.MemberType memberType,
                                      Identified facetHolder,
                                      RuntimeContext runtimeContext)

Method Detail

get

public abstract NakedObject get(NakedObject fromObject)

Description copied from interface: CurrentHolder

Returns the referenced NakedObject for the owning NakedObject.

For example, if this is an OneToOneAssociation, then returns the referenced object.

Specified by:

get in interface CurrentHolder

getSpecification

public NakedObjectSpecification getSpecification()

Return the specification of the object (or objects) that this field holds. For a value are one-to-one reference this will be type that the accessor returns. For a collection it will be the type of element, not the type of collection.

Specified by:

getSpecification in interface TypedSpecification

isNotDerived

public boolean isNotDerived()

Description copied from interface: NakedObjectAssociation

Returns true if not calculated from other data in the object, that is, should be persisted.

Specified by:

isNotDerived in interface NakedObjectAssociation

hasChoices

public boolean hasChoices()

Description copied from interface: NakedObjectAssociation

Whether there are any choices provided (eg choicesXxx supporting method) for the association.

Specified by:

hasChoices in interface NakedObjectAssociation

isMandatory

public boolean isMandatory()

Description copied from interface: NakedObjectAssociation

Determines if this field must be complete before the object is in a valid state

Specified by:

isMandatory in interface NakedObjectAssociation

isEmpty

public abstract boolean isEmpty(NakedObject adapter)

Description copied from interface: NakedObjectAssociation

Returns true if this field on the specified object is deemed to be empty, or has no content.

Specified by:

isEmpty in interface NakedObjectAssociation

isOneToOneAssociation

public boolean isOneToOneAssociation()

Description copied from interface: NakedObjectMember

Whether this member represents a OneToOneAssociation.

If so, can be safely downcast to OneToOneAssociation.

Specified by:

isOneToOneAssociation in interface NakedObjectMember

Overrides:

isOneToOneAssociation in class NakedObjectMemberAbstract

getBusinessKeyName

public java.lang.String getBusinessKeyName()

Description copied from interface: NakedObjectAssociation

Get the name for the business key, if one has been specified.

Specified by:

getBusinessKeyName in interface NakedObjectAssociation