de.deepamehta.core.impl

Class TopicImpl

Show UML class diagram

java.lang.Object

de.deepamehta.core.impl.DeepaMehtaObjectImpl

de.deepamehta.core.impl.TopicImpl

All Implemented Interfaces:

DeepaMehtaObject, Identifiable, JSONEnabled, Topic

Direct Known Subclasses:

DeepaMehtaTypeImpl, RelatedTopicImpl

 class TopicImpl
extends DeepaMehtaObjectImpl
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 de.deepamehta.core.impl.DeepaMehtaObjectImpl

mf, model, pl

Constructor Summary

Constructors

Constructor and Description
TopicImpl(TopicModelImpl model, PersistenceLayer pl)

Method Summary

Methods

Modifier and Type	Method and Description
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()
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)
TopicType	getType()
Topic	loadChildTopics()
Topic	loadChildTopics(String assocDefUri)
void	removeProperty(String propUri) Removes this object's property associated with the given property URI.
void	setProperty(String propUri, Object propValue, boolean addToIndex)
void	update(TopicModel newModel)

Methods inherited from class de.deepamehta.core.impl.DeepaMehtaObjectImpl

className, delete, equals, getChildTopics, getDatabaseVendorObject, getId, getProperty, getRelatedTopic, getRelatedTopics, getRelatedTopics, getSimpleValue, getTypeUri, getUri, hashCode, hasProperty, setChildTopics, setSimpleValue, setSimpleValue, setSimpleValue, setSimpleValue, setSimpleValue, setTypeUri, setUri, toJSON, toString, update, updateChildTopic, updateChildTopics

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.deepamehta.core.DeepaMehtaObject

delete, getChildTopics, getDatabaseVendorObject, getId, getProperty, getRelatedTopic, getRelatedTopics, getRelatedTopics, getSimpleValue, getTypeUri, getUri, hasProperty, setChildTopics, setSimpleValue, setSimpleValue, setSimpleValue, setSimpleValue, setSimpleValue, setTypeUri, setUri, update, updateChildTopic, updateChildTopics

Methods inherited from interface de.deepamehta.core.JSONEnabled

toJSON

Field Detail

logger

private Logger logger

Constructor Detail

TopicImpl

TopicImpl(TopicModelImpl model,
         PersistenceLayer pl)

Method Detail

update

public void update(TopicModel newModel)

Specified by:

update in interface Topic

findChildTopic

public 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 DeepaMehtaObject interface?

Specified by:

findChildTopic in interface Topic

Returns:

the found topic, or null.

loadChildTopics

public Topic loadChildTopics()

Specified by:

loadChildTopics in interface DeepaMehtaObject

Specified by:

loadChildTopics in interface Topic

Overrides:

loadChildTopics in class DeepaMehtaObjectImpl

loadChildTopics

public Topic loadChildTopics(String assocDefUri)

Specified by:

loadChildTopics in interface DeepaMehtaObject

Specified by:

loadChildTopics in interface Topic

Overrides:

loadChildTopics in class DeepaMehtaObjectImpl

getType

public TopicType getType()

Specified by:

getType in interface DeepaMehtaObject

getModel

public TopicModelImpl getModel()

Specified by:

getModel in interface DeepaMehtaObject

Specified by:

getModel in interface Topic

Overrides:

getModel in class DeepaMehtaObjectImpl

getRelatedTopics

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

Specified by:

getRelatedTopics in interface DeepaMehtaObject

Parameters:

assocTypeUris - may *not* be null

myRoleTypeUri - may be null

othersRoleTypeUri - may be null

othersTopicTypeUri - may be null

getRelatedAssociation

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

Specified by:

getRelatedAssociation in interface DeepaMehtaObject

Parameters:

assocTypeUri - may be null

myRoleTypeUri - may be null

othersRoleTypeUri - may be null

othersAssocTypeUri - may be null

getRelatedAssociations

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

Specified by:

getRelatedAssociations in interface DeepaMehtaObject

Parameters:

assocTypeUri - may be null

myRoleTypeUri - may be null

othersRoleTypeUri - may be null

othersAssocTypeUri - may be null

getAssociation

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

Specified by:

getAssociation in interface DeepaMehtaObject

getAssociations

public List<Association> getAssociations()

Specified by:

getAssociations in interface DeepaMehtaObject

setProperty

public void setProperty(String propUri,
               Object propValue,
               boolean addToIndex)

Specified by:

setProperty in interface DeepaMehtaObject

removeProperty

public void removeProperty(String propUri)

Description copied from interface: DeepaMehtaObject

Removes this object's property associated with the given property URI. If there's no property value associated with the property URI nothing is performed.

Specified by:

removeProperty in interface DeepaMehtaObject