Package ch.tocco.nice2.optional.seminar.impl.entitylistener.helpers

Class SeminarEventStructureHelper

java.lang.Object

ch.tocco.nice2.optional.seminar.impl.entitylistener.helpers.SeminarEventStructureHelper

public class SeminarEventStructureHelper
extends Object

Method Summary

Modifier and Type	Method	Description
static Function<Entity,Entity>	eventForClearingDataLoader(BiFunction<Entity,String,List<EntityRelationChangedEvent>> relationChangeLoader)	used to figure out an "old" related Event from an Event_relationship or Seminar_event where some fields / relations need to be cleared.

Methods inherited from class java.lang.Object

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

Method Details

eventForClearingDataLoader

public static Function<Entity,Entity> eventForClearingDataLoader(BiFunction<Entity,String,List<EntityRelationChangedEvent>> relationChangeLoader)

used to figure out an "old" related Event from an Event_relationship or Seminar_event where some fields / relations need to be cleared. either the source entity was deleted, so the currently related Event needs to be cleaned, or the relation to the Event was changed, so the previously related Event needs to cleaned

Parameters:

relationChangeLoader - a function that returns relation changed events for an entity and a relation name

Returns:

a function that returns the currently or previously related Event from an Event_relationship or Seminar_event depending on its state