com.bigdata.ha.msg

Interface IHAReadRequest

All Superinterfaces:

IHAMessage, Serializable

All Known Implementing Classes:

HAReadRequest

public interface IHAReadRequest
extends IHAMessage

Message used to read a record from an IRawStore managed by a remote service. Services MUST NOT refer this message to another service. If the read can not be satisfied, for example because the IRawStore has been released or because there is a checksum error when reading on the IRawStore, then that exception should be thrown back to the caller.

Method Summary

Methods

Modifier and Type	Method and Description
long	getAddr() The address of the record.
long	getQuorumToken() The quorum token for which the read was issued.
UUID	getStoreUUID() The UUID identifying the IRawStore for which the record was requested (optional, defaults to the current Journal).

Method Detail

getQuorumToken

long getQuorumToken()

The quorum token for which the read was issued.

getStoreUUID

UUID getStoreUUID()

The UUID identifying the IRawStore for which the record was requested (optional, defaults to the current Journal).

Note: This parameter is intended for scale-out if there is a need to fetch the root block of a historical journal (versus the live journal).

getAddr

long getAddr()

The address of the record.