public final class MetadataUpdateProposedMessage extends Object implements DiscoveryCustomMessage
MetadataUpdateAcceptedMessage
messages make a basis for
discovery-based protocol for exchanging metadata
describing objects in binary format stored in Ignite caches.
All interactions with binary metadata are performed through BinaryMetadataHandler
interface implemented in CacheObjectBinaryProcessorImpl
processor.
Protocol works as follows:
ack
is sent.
Ack has the same accepted version as pending version
of initial MetadataUpdateProposedMessage message.
MetadataUpdateAcceptedMessage
arrives with accepted version
equals to pending version of this metadata to the moment when is was initially read by the thread.Constructor and Description |
---|
MetadataUpdateProposedMessage(BinaryMetadata metadata,
UUID origNodeId) |
Modifier and Type | Method and Description |
---|---|
DiscoveryCustomMessage |
ackMessage()
Called when custom message has been handled by all nodes.
|
IgniteUuid |
id() |
boolean |
isMutable() |
BinaryMetadata |
metadata() |
void |
metadata(BinaryMetadata metadata) |
String |
toString() |
int |
typeId() |
public MetadataUpdateProposedMessage(BinaryMetadata metadata, UUID origNodeId)
metadata
- BinaryMetadata
requested to be updated.origNodeId
- ID of node requested update.public IgniteUuid id()
id
in interface DiscoveryCustomMessage
@Nullable public DiscoveryCustomMessage ackMessage()
ackMessage
in interface DiscoveryCustomMessage
null
if ack is not required.public boolean isMutable()
isMutable
in interface DiscoveryCustomMessage
true
if message can be modified during listener notification. Changes will be send to next nodes.public BinaryMetadata metadata()
public void metadata(BinaryMetadata metadata)
metadata
- Metadata.public int typeId()
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Ignite Fabric : ver. 2.3.0 Release Date : October 28 2017