org.apache.ignite.internal.processors.cache.binary

Class MetadataRequestMessage

java.lang.Object

org.apache.ignite.internal.processors.cache.binary.MetadataRequestMessage

All Implemented Interfaces:

Serializable, Message

public class MetadataRequestMessage
extends Object
implements Message

As DiscoveryCustomMessage messages are delivered to client nodes asynchronously it is possible that server nodes are allowed to send to clients some BinaryObjects clients don't have metadata for. When client detects obsolete metadata (by checking if current version of metadata has schemaId) it requests up-to-date metadata using communication SPI. API to make a request is provided by BinaryMetadataTransport.requestUpToDateMetadata(int) method.

See Also:

Serialized Form

Field Summary

Fields inherited from interface org.apache.ignite.plugin.extensions.communication.Message

DIRECT_TYPE_SIZE

Constructor Summary

Constructors

Constructor and Description
MetadataRequestMessage() Default constructor.

Method Summary

Modifier and Type	Method and Description
short	directType() Gets message type.
byte	fieldsCount() Gets fields count.
void	onAckReceived() Method called when ack message received.
boolean	readFrom(ByteBuffer buf, MessageReader reader) Reads this message from provided byte buffer.
String	toString()
int	typeId()
boolean	writeTo(ByteBuffer buf, MessageWriter writer) Writes this message to provided byte buffer.

Methods inherited from class java.lang.Object

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

Constructor Detail

MetadataRequestMessage

public MetadataRequestMessage()

Default constructor.

Method Detail

writeTo

public boolean writeTo(ByteBuffer buf,
                       MessageWriter writer)

Writes this message to provided byte buffer.

Specified by:

writeTo in interface Message

Parameters:

buf - Byte buffer.

writer - Writer.

Returns:

Whether message was fully written.

readFrom

public boolean readFrom(ByteBuffer buf,
                        MessageReader reader)

Reads this message from provided byte buffer.

Specified by:

readFrom in interface Message

Parameters:

buf - Byte buffer.

reader - Reader.

Returns:

Whether message was fully read.

directType

public short directType()

Gets message type.

Specified by:

directType in interface Message

Returns:

Message type.

fieldsCount

public byte fieldsCount()

Gets fields count.

Specified by:

fieldsCount in interface Message

Returns:

Fields count.

onAckReceived

public void onAckReceived()

Method called when ack message received.

Specified by:

onAckReceived in interface Message

typeId

public int typeId()

toString

public String toString()

Overrides:

toString in class Object