io.atomix.protocols.raft.protocol

Class QueryRequest

java.lang.Object

io.atomix.protocols.raft.protocol.AbstractRaftRequest

io.atomix.protocols.raft.protocol.SessionRequest

io.atomix.protocols.raft.protocol.OperationRequest

io.atomix.protocols.raft.protocol.QueryRequest

All Implemented Interfaces:

RaftMessage, RaftRequest

public class QueryRequest
extends OperationRequest

Client query request.

Query requests are submitted by clients to the Raft cluster to commit RaftOperations to the replicated state machine. Each query request must be associated with a registered SessionRequest.session() and have a unique OperationRequest.sequenceNumber() number within that session. Queries will be applied in the cluster in the order defined by the provided sequence number. Thus, sequence numbers should never be skipped. In the event of a failure of a query request, the request should be resent with the same sequence number. Queries are guaranteed to be applied in sequence order.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	QueryRequest.Builder Query request builder.

Constructor Summary

Constructors

Constructor and Description
QueryRequest(long session, long sequence, RaftOperation operation, long index)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object object)
int	hashCode()
long	index() Returns the query index.
static QueryRequest.Builder	newBuilder() Returns a new query request builder.
String	toString()

Methods inherited from class io.atomix.protocols.raft.protocol.OperationRequest

operation, sequenceNumber

Methods inherited from class io.atomix.protocols.raft.protocol.SessionRequest

session

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

QueryRequest

public QueryRequest(long session,
                    long sequence,
                    RaftOperation operation,
                    long index)

Method Detail

newBuilder

public static QueryRequest.Builder newBuilder()

Returns a new query request builder.

Returns:

A new query request builder.

index

public long index()

Returns the query index.

Returns:

The query index.

hashCode

public int hashCode()

Overrides:

hashCode in class SessionRequest

equals

public boolean equals(Object object)

Overrides:

equals in class SessionRequest

toString

public String toString()

Overrides:

toString in class SessionRequest