systems.dmx.core

Interface Topic

All Superinterfaces:

DMXObject, Identifiable, JSONEnabled

All Known Subinterfaces:

AssocType, DMXType, RelatedTopic, RoleType, TopicType

public interface Topic
extends DMXObject

A topic -- DMX's central data object.

Author:

Jörg Richter

Method Summary

Modifier and Type	Method and Description
Topic	findChildTopic(String topicTypeUri) Searches this topic's child topics for a topic of the given type.
TopicModel	getModel()

Methods inherited from interface systems.dmx.core.DMXObject

checkWriteAccess, delete, getAssoc, getAssocs, getChildTopics, getDatabaseVendorObject, getId, getProperty, getRelatedAssoc, getRelatedAssocs, getRelatedAssocs, getRelatedTopic, getRelatedTopics, getRelatedTopics, getSimpleValue, getType, getTypeUri, getUri, hasProperty, loadChildTopics, loadChildTopics, removeProperty, setProperty, setSimpleValue, setSimpleValue, setSimpleValue, setSimpleValue, setSimpleValue, setTypeUri, setUri, update, update, updateChildTopics

Methods inherited from interface systems.dmx.core.JSONEnabled

dump, toJSON

Method Detail

findChildTopic

Topic findChildTopic(String topicTypeUri)

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 children 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?

Returns:

the found topic, or null.

getModel

TopicModel getModel()

Specified by:

getModel in interface DMXObject