org.fuin.ddd4j.ddd

Class AbstractEvent

java.lang.Object

org.fuin.ddd4j.ddd.AbstractEvent

All Implemented Interfaces:

java.io.Serializable, Event

Direct Known Subclasses:

AbstractDomainEvent

public abstract class AbstractEvent
extends java.lang.Object
implements Event

Base class for events. Equals and hash code are solely based on the event id.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
AbstractEvent() Default constructor.
AbstractEvent(@NotNull Event respondTo) Constructor with event this one responds to.
AbstractEvent(EventId correlationId, EventId causationId) Constructor with optional data.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
EventId	getCausationId() Causation identifier.
EventId	getCorrelationId() Correlation identifier.
EventId	getEventId() Returns the identifier of the event.
java.time.ZonedDateTime	getTimestamp() Date, time and time zone the event was created.
int	hashCode()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.fuin.ddd4j.ddd.Event

getEventType

Constructor Detail

AbstractEvent

public AbstractEvent()

Default constructor.

AbstractEvent

public AbstractEvent(@NotNull
                     @NotNull Event respondTo)

Constructor with event this one responds to. Convenience method to set the correlation and causation identifiers correctly.

Parameters:

respondTo - Causing event.

AbstractEvent

public AbstractEvent(@Nullable
                     EventId correlationId,
                     @Nullable
                     EventId causationId)

Constructor with optional data.

Parameters:

correlationId - Correlation ID.

causationId - ID of the event that caused this one.

Method Detail

getEventId

public final EventId getEventId()

Description copied from interface: Event

Returns the identifier of the event.

Specified by:

getEventId in interface Event

Returns:

Unique identifier event.

getTimestamp

public final java.time.ZonedDateTime getTimestamp()

Description copied from interface: Event

Date, time and time zone the event was created.

Specified by:

getTimestamp in interface Event

Returns:

Event creation date and time.

getCorrelationId

public final EventId getCorrelationId()

Description copied from interface: Event

Correlation identifier.

Specified by:

getCorrelationId in interface Event

Returns:

Context of the event.

getCausationId

public final EventId getCausationId()

Description copied from interface: Event

Causation identifier.

Specified by:

getCausationId in interface Event

Returns:

Identifier of the evtn that caused this one.

hashCode

public final int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public final boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object