systems.dmx.core.impl

Class TopicImpl

Show UML class diagram

java.lang.Object

systems.dmx.core.impl.DMXObjectImpl

systems.dmx.core.impl.TopicImpl

All Implemented Interfaces:

DMXObject, Identifiable, JSONEnabled, Topic

Direct Known Subclasses:

DMXTypeImpl, RelatedTopicImpl

class TopicImpl
extends DMXObjectImpl
implements Topic

A topic that is attached to the CoreService.

Field Summary

Fields

Modifier and Type	Field and Description
private Logger	logger

Fields inherited from class systems.dmx.core.impl.DMXObjectImpl

mf, model, pl

Constructor Summary

Constructors

Constructor and Description
TopicImpl(TopicModelImpl model, PersistenceLayer pl)

Method Summary

Modifier and Type	Method and Description
void	delete() Deletes the DMX object in its entirety, that is - the object itself (the parent) - all child topics associated via "dmx.core.composition", recusively - all the remaining direct associations, e.g.
Topic	findChildTopic(String topicTypeUri) Searches this topic's child topics for a topic of the given type.
Association	getAssociation(String assocTypeUri, String myRoleTypeUri, String othersRoleTypeUri, long othersTopicId)
List<Association>	getAssociations() Fetches all associations this object is a player in.
TopicModelImpl	getModel()
RelatedAssociation	getRelatedAssociation(String assocTypeUri, String myRoleTypeUri, String othersRoleTypeUri, String othersAssocTypeUri)
List<RelatedAssociation>	getRelatedAssociations(String assocTypeUri, String myRoleTypeUri, String othersRoleTypeUri, String othersAssocTypeUri)
List<RelatedTopic>	getRelatedTopics(List assocTypeUris, String myRoleTypeUri, String othersRoleTypeUri, String othersTopicTypeUri)
Topic	loadChildTopics()
Topic	loadChildTopics(String assocDefUri)
void	update(TopicModel updateModel)

Methods inherited from class systems.dmx.core.impl.DMXObjectImpl

className, equals, getChildTopics, getDatabaseVendorObject, getId, getProperty, getRelatedTopic, getRelatedTopics, getRelatedTopics, getSimpleValue, getType, getTypeUri, getUri, hashCode, hasProperty, removeProperty, setChildTopics, setProperty, setSimpleValue, setSimpleValue, setSimpleValue, setSimpleValue, setSimpleValue, setTypeUri, setUri, toJSON, toString, updateChildTopics

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface systems.dmx.core.DMXObject

getChildTopics, getDatabaseVendorObject, getId, getProperty, getRelatedTopic, getRelatedTopics, getRelatedTopics, getSimpleValue, getType, getTypeUri, getUri, hasProperty, removeProperty, setChildTopics, setProperty, setSimpleValue, setSimpleValue, setSimpleValue, setSimpleValue, setSimpleValue, setTypeUri, setUri, updateChildTopics

Methods inherited from interface systems.dmx.core.JSONEnabled

toJSON

Field Detail

logger

private final Logger logger

Constructor Detail

TopicImpl

TopicImpl(TopicModelImpl model,
          PersistenceLayer pl)

Method Detail

update

public final void update(TopicModel updateModel)

Specified by:

update in interface Topic

delete

public final void delete()

Description copied from interface: DMXObject

Deletes the DMX object in its entirety, that is - the object itself (the parent) - all child topics associated via "dmx.core.composition", recusively - all the remaining direct associations, e.g. "dmx.core.instantiation"

Specified by:

delete in interface DMXObject

findChildTopic

public final Topic findChildTopic(String topicTypeUri)

Description copied from interface: Topic

Searches this topic's child topics for a topic of the given type. Only the child topics which are already loaded into memory are searched; the DB is not accessed.

The first topic found is returned, according to a depth-first search. For multiple-value childs the first topic is returned. If the given type matches this topic directly it is returned immediately.

The search is driven by this topic's type definition. That is child topics which do not adhere to the type definition are not found.

TODO: make this generic by moving to DMXObject interface?

Specified by:

findChildTopic in interface Topic

Returns:

the found topic, or null.

loadChildTopics

public final Topic loadChildTopics()

Specified by:

loadChildTopics in interface DMXObject

Specified by:

loadChildTopics in interface Topic

Overrides:

loadChildTopics in class DMXObjectImpl

loadChildTopics

public final Topic loadChildTopics(String assocDefUri)

Specified by:

loadChildTopics in interface DMXObject

Specified by:

loadChildTopics in interface Topic

Overrides:

loadChildTopics in class DMXObjectImpl

getModel

public TopicModelImpl getModel()

Specified by:

getModel in interface DMXObject

Specified by:

getModel in interface Topic

Overrides:

getModel in class DMXObjectImpl

getRelatedTopics

public final List<RelatedTopic> getRelatedTopics(List assocTypeUris,
                                                 String myRoleTypeUri,
                                                 String othersRoleTypeUri,
                                                 String othersTopicTypeUri)

Specified by:

getRelatedTopics in interface DMXObject

Parameters:

assocTypeUris - may *not* be null

myRoleTypeUri - may be null

othersRoleTypeUri - may be null

othersTopicTypeUri - may be null

getRelatedAssociation

public final RelatedAssociation getRelatedAssociation(String assocTypeUri,
                                                      String myRoleTypeUri,
                                                      String othersRoleTypeUri,
                                                      String othersAssocTypeUri)

Specified by:

getRelatedAssociation in interface DMXObject

Parameters:

assocTypeUri - may be null

myRoleTypeUri - may be null

othersRoleTypeUri - may be null

othersAssocTypeUri - may be null

getRelatedAssociations

public final List<RelatedAssociation> getRelatedAssociations(String assocTypeUri,
                                                             String myRoleTypeUri,
                                                             String othersRoleTypeUri,
                                                             String othersAssocTypeUri)

Specified by:

getRelatedAssociations in interface DMXObject

Parameters:

assocTypeUri - may be null

myRoleTypeUri - may be null

othersRoleTypeUri - may be null

othersAssocTypeUri - may be null

getAssociation

public final Association getAssociation(String assocTypeUri,
                                        String myRoleTypeUri,
                                        String othersRoleTypeUri,
                                        long othersTopicId)

Specified by:

getAssociation in interface DMXObject

getAssociations

public final List<Association> getAssociations()

Description copied from interface: DMXObject

Fetches all associations this object is a player in.

Specified by:

getAssociations in interface DMXObject