Package ch.tocco.nice2.optional.event.api.eventrelationship

Class EventRelationshipTraverser

java.lang.Object

ch.tocco.nice2.optional.event.api.eventrelationship.EventRelationshipTraverser

@Component
public class EventRelationshipTraverser
extends Object

can be used to work with Events related by Event_relationship

Field Summary

Fields

Modifier and Type	Field	Description
static final String	EVENT_TO_CHILD_RELATION
static final String	EVENT_TO_PARENT_RELATION
static final String	RELATIONSHIP_TO_CHILD_RELATION
static final String	RELATIONSHIP_TO_PARENT_RELATION

Constructor Summary

Constructors

Constructor	Description
EventRelationshipTraverser()

Method Summary

Modifier and Type	Method	Description
List<Entity>	getAllChildren(Entity event)	get all children of an Event
Entity	getRootEvent(Entity event)	get the top most Event in the hierarchy.
void	visitAllChildren(Entity event, Consumer<Entity> childConsumer)	run some code for each child

Methods inherited from class java.lang.Object

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

Field Details

EVENT_TO_CHILD_RELATION

public static final String EVENT_TO_CHILD_RELATION

See Also:

• Constant Field Values

EVENT_TO_PARENT_RELATION

public static final String EVENT_TO_PARENT_RELATION

See Also:

• Constant Field Values

RELATIONSHIP_TO_CHILD_RELATION

public static final String RELATIONSHIP_TO_CHILD_RELATION

See Also:

• Constant Field Values

RELATIONSHIP_TO_PARENT_RELATION

public static final String RELATIONSHIP_TO_PARENT_RELATION

See Also:

• Constant Field Values

Constructor Details

EventRelationshipTraverser

public EventRelationshipTraverser()

Method Details

getAllChildren

public List<Entity> getAllChildren(Entity event)

get all children of an Event

Parameters:

event - the parent Event

Returns:

a list containing all child Event entities

visitAllChildren

public void visitAllChildren(Entity event,
 Consumer<Entity> childConsumer)

run some code for each child

Parameters:

event - the parent Event

childConsumer - gets called for each child

getRootEvent

public Entity getRootEvent(Entity event)

get the top most Event in the hierarchy. for Events not used in Seminars, multiple parents may exist, which this method treats as unresolvable and will return the last Event that was a clear single parent.

Parameters:

event - the Event to search from

Returns:

the Event with no single direct parent