systems.dmx.core.impl

Class ChildTopicsFetcher

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java.lang.Object

systems.dmx.core.impl.ChildTopicsFetcher

class ChildTopicsFetcher
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
private Logger	logger
private PersistenceLayer	pl

Constructor Summary

Constructors

Constructor and Description
ChildTopicsFetcher(PersistenceLayer pl)

Method Summary

Modifier and Type	Method and Description
(package private) void	fetch(DMXObjectModel object, AssociationDefinitionModel assocDef, boolean deep) Fetches the child topic models (recursively) of the given object model and updates it in-place.
private RelatedTopicModelImpl	fetchChildTopic(long objectId, AssociationDefinitionModel assocDef) Fetches and returns a child topic or null if no such topic extists.
private void	fetchChildTopics(DMXObjectModelImpl object, boolean deep) Fetches the child topic models (recursively) of the given object model and updates it in-place.
private List<RelatedTopicModelImpl>	fetchChildTopics(long objectId, AssociationDefinitionModel assocDef)

Methods inherited from class java.lang.Object

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

Field Detail

pl

private PersistenceLayer pl

logger

private Logger logger

Constructor Detail

ChildTopicsFetcher

ChildTopicsFetcher(PersistenceLayer pl)

Method Detail

fetch

void fetch(DMXObjectModel object,
           AssociationDefinitionModel assocDef,
           boolean deep)

Fetches the child topic models (recursively) of the given object model and updates it in-place. ### TODO: recursion is required in some cases (e.g. when fetching a topic through REST API) but is possibly overhead in others (e.g. when updating composite structures).

Works for both, "one" and "many" association definitions.

Parameters:

assocDef - The child topic models according to this association definition are fetched.

fetchChildTopics

private void fetchChildTopics(DMXObjectModelImpl object,
                              boolean deep)

Fetches the child topic models (recursively) of the given object model and updates it in-place. ### TODO: recursion is required in some cases (e.g. when fetching a topic through REST API) but is possibly overhead in others (e.g. when updating composite structures).

fetchChildTopic

private RelatedTopicModelImpl fetchChildTopic(long objectId,
                                              AssociationDefinitionModel assocDef)

Fetches and returns a child topic or null if no such topic extists.

fetchChildTopics

private List<RelatedTopicModelImpl> fetchChildTopics(long objectId,
                                                     AssociationDefinitionModel assocDef)