org.axonframework.domain
Class MutableEventMetaData

java.lang.Object
  org.axonframework.domain.MutableEventMetaData

All Implemented Interfaces:

Serializable, EventMetaData

public class MutableEventMetaData
extends Object
implements Serializable, EventMetaData

Implementation of EventMetaData that allows values to be set, as well as read.

Since:

0.7

Author:

Allard Buijze

See Also:

Serialized Form

Constructor Summary

MutableEventMetaData(org.joda.time.LocalDateTime timestamp, UUID eventIdentifier)
Create a meta-data instance with the given timestamp and eventIdentifier as initial values.

Method Summary

boolean	containsKey(String key) Indicates whether the given key has been associated with a value (which includes null).
Serializable	get(String key) Returns the value associated with the given key.
UUID	getEventIdentifier() Returns the identifier of this event.
org.joda.time.LocalDateTime	getTimestamp() Returns the time this event was created.
Set<String>	keySet() Returns a Set containing the keys registered in the event's meta data.
void	put(String key, Serializable value) Put a key-value pair in the meta data.

Methods inherited from class java.lang.Object

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

Constructor Detail

MutableEventMetaData

public MutableEventMetaData(org.joda.time.LocalDateTime timestamp,
                            UUID eventIdentifier)

Create a meta-data instance with the given timestamp and eventIdentifier as initial values.

Parameters:

timestamp - The timestamp of the creation of the event

eventIdentifier - The identifier of the event

Method Detail

put

public void put(String key,
                Serializable value)

Put a key-value pair in the meta data.

Parameters:

key - The key for which to insert a value

value - The value to insert

getTimestamp

public org.joda.time.LocalDateTime getTimestamp()

Description copied from interface: EventMetaData

Returns the time this event was created.

Specified by:

getTimestamp in interface EventMetaData

Returns:

the time this event was created

getEventIdentifier

public UUID getEventIdentifier()

Description copied from interface: EventMetaData

Returns the identifier of this event.

Specified by:

getEventIdentifier in interface EventMetaData

Returns:

the identifier of this event

get

public Serializable get(String key)

Description copied from interface: EventMetaData

Returns the value associated with the given key. Returns null if no such key exists, or if the associated value is null. Use EventMetaData.containsKey(String) to make this distinction.

Specified by:

get in interface EventMetaData

Parameters:

key - The key to find the associated value for

Returns:

The value assiciated with the given key, or null if it does not exist

containsKey

public boolean containsKey(String key)

Description copied from interface: EventMetaData

Indicates whether the given key has been associated with a value (which includes null).

Specified by:

containsKey in interface EventMetaData

Parameters:

key - The key to check

Returns:

true if the key is associated with a value, false otherwise.

keySet

public Set<String> keySet()

Description copied from interface: EventMetaData

Returns a Set containing the keys registered in the event's meta data.

Specified by:

keySet in interface EventMetaData

Returns:

a Set containing the keys registered in the event's meta data