org.axonframework.eventhandling

Class AbstractEventEntry<T>

java.lang.Object

org.axonframework.eventhandling.AbstractEventEntry<T>

All Implemented Interfaces:

EventData<T>

Direct Known Subclasses:

AbstractDomainEventEntry, AbstractSnapshotEventEntry

@MappedSuperclass
public abstract class AbstractEventEntry<T>
extends Object
implements EventData<T>

Abstract base class of a serialized event. Fields in this class contain JPA annotations that direct JPA event storage engines how to store event entries.

Author:

Rene de Waele

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractEventEntry() Default constructor required by JPA
	AbstractEventEntry(EventMessage<?> eventMessage, Serializer serializer, Class<T> contentType) Construct a new event entry from a published event message to enable storing the event or sending it to a remote location.
	AbstractEventEntry(String eventIdentifier, Object timestamp, String payloadType, String payloadRevision, T payload, T metaData) Reconstruct an event entry from a stored object.

Method Summary

Modifier and Type	Method and Description
String	getEventIdentifier() Returns the identifier of the serialized event.
SerializedObject<T>	getMetaData() Returns the serialized data of the MetaData of the serialized Event.
SerializedObject<T>	getPayload() Returns the serialized data of the Event Message's payload.
Instant	getTimestamp() Returns the timestamp at which the event was first created.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractEventEntry

public AbstractEventEntry(EventMessage<?> eventMessage,
                          Serializer serializer,
                          Class<T> contentType)

Construct a new event entry from a published event message to enable storing the event or sending it to a remote location.

The given serializer will be used to serialize the payload and metadata in the given eventMessage. The type of the serialized data will be the same as the given contentType.

Parameters:

eventMessage - The event message to convert to a serialized event entry

serializer - The serializer to convert the event

contentType - The data type of the payload and metadata after serialization

AbstractEventEntry

public AbstractEventEntry(String eventIdentifier,
                          Object timestamp,
                          String payloadType,
                          String payloadRevision,
                          T payload,
                          T metaData)

Reconstruct an event entry from a stored object.

Parameters:

eventIdentifier - The identifier of the event

timestamp - The time at which the event was originally created

payloadType - The fully qualified class name or alias of the event payload

payloadRevision - The revision of the event payload

payload - The serialized payload

metaData - The serialized metadata

AbstractEventEntry

protected AbstractEventEntry()

Default constructor required by JPA

Method Detail

getEventIdentifier

public String getEventIdentifier()

Description copied from interface: EventData

Returns the identifier of the serialized event.

Specified by:

getEventIdentifier in interface EventData<T>

Returns:

the identifier of the serialized event

getTimestamp

public Instant getTimestamp()

Description copied from interface: EventData

Returns the timestamp at which the event was first created.

Specified by:

getTimestamp in interface EventData<T>

Returns:

the timestamp at which the event was first created

getMetaData

public SerializedObject<T> getMetaData()

Description copied from interface: EventData

Returns the serialized data of the MetaData of the serialized Event.

Specified by:

getMetaData in interface EventData<T>

Returns:

the serialized data of the MetaData of the serialized Event

getPayload

public SerializedObject<T> getPayload()

Description copied from interface: EventData

Returns the serialized data of the Event Message's payload.

Specified by:

getPayload in interface EventData<T>

Returns:

the serialized data of the Event Message's payload