Package org.apache.ignite.internal.processors.query.stat.messages

Class StatisticsRequest

java.lang.Object

org.apache.ignite.internal.processors.query.stat.messages.StatisticsRequest

All Implemented Interfaces:

Serializable, Message

public class StatisticsRequest
extends Object
implements Message

Request for statistics.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static short	TYPE_CODE

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

DIRECT_TYPE_SIZE

Constructor Summary

Constructors

Constructor	Description
StatisticsRequest()	Constructor.
StatisticsRequest(UUID reqId, StatisticsKeyMessage key, StatisticsType type, AffinityTopologyVersion topVer, Map<String,Long> versions)	Constructor.

Method Summary

Modifier and Type	Method	Description
short	directType()	Gets message type.
byte	fieldsCount()	Gets fields count.
StatisticsKeyMessage	key()
void	onAckReceived()	Method called when ack message received.
boolean	readFrom(ByteBuffer buf, MessageReader reader)	Reads this message from provided byte buffer.
UUID	reqId()	Request id.
AffinityTopologyVersion	topVer()
String	toString()
StatisticsType	type()
Map<String,Long>	versions()
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

Field Detail

TYPE_CODE

public static final short TYPE_CODE

See Also:

Constant Field Values

Constructor Detail

StatisticsRequest

public StatisticsRequest()

Constructor.

StatisticsRequest

public StatisticsRequest(UUID reqId,
                         StatisticsKeyMessage key,
                         StatisticsType type,
                         AffinityTopologyVersion topVer,
                         Map<String,Long> versions)

Constructor.

Parameters:

reqId - Request id.

key - Statistics key to get statistics by.

type - Required statistics type.

topVer - Topology version to get statistics by.

versions - Map of statistics version to column name to ensure actual statistics aquired.

Method Detail

reqId

public UUID reqId()

Request id.

type

public StatisticsType type()

Returns:

Required statistics type.

key

public StatisticsKeyMessage key()

Returns:

Key for required statitics.

topVer

public AffinityTopologyVersion topVer()

Returns:

Topology version.

versions

public Map<String,Long> versions()

Returns:

Column name to version map.

toString

public String toString()

Overrides:

toString in class Object

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