org.apache.omid.tso.client

Class MockTSOClient

java.lang.Object

org.apache.omid.tso.client.MockTSOClient

All Implemented Interfaces:

TSOProtocol

public class MockTSOClient
extends Object
implements TSOProtocol

Constructor Summary

Constructors

Constructor and Description
MockTSOClient(CommitTable.Writer commitTable)

Method Summary

Modifier and Type	Method and Description
TSOFuture<Void>	close() Closes the communication with the TSO server
TSOFuture<Long>	commit(long transactionId, Set<? extends CellId> cells) Returns the result of the conflict detection made on the server-side for the specified transaction
TSOFuture<Long>	commit(long transactionId, Set<? extends CellId> cells, Set<? extends CellId> conflictFreeWriteSet) Returns the result of the conflict detection made on the server-side for the specified transaction
OmidClientConfiguration.ConflictDetectionLevel	getConflictDetectionLevel()
long	getEpoch() Returns the epoch of the current TSO server.
TSOFuture<Long>	getFence(long tableId) Returns a new fence timestamp assigned by on the server-side
TSOFuture<Long>	getNewStartTimestamp() Returns a new timestamp assigned by on the server-side
boolean	isLowLatency() checks if tso is low latency protocol
void	setConflictDetectionLevel(OmidClientConfiguration.ConflictDetectionLevel conflictDetectionLevel)

Methods inherited from class java.lang.Object

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

Constructor Detail

MockTSOClient

public MockTSOClient(CommitTable.Writer commitTable)

Method Detail

getNewStartTimestamp

public TSOFuture<Long> getNewStartTimestamp()

Description copied from interface: TSOProtocol

Returns a new timestamp assigned by on the server-side

Specified by:

getNewStartTimestamp in interface TSOProtocol

Returns:

the newly assigned timestamp as a future. If an error was detected, the future will contain a corresponding protocol exception see org.apache.omid.tso.TimestampOracle see org.apache.omid.tso.TSOServer

getFence

public TSOFuture<Long> getFence(long tableId)

Description copied from interface: TSOProtocol

Returns a new fence timestamp assigned by on the server-side

Specified by:

getFence in interface TSOProtocol

Parameters:

tableId - the table to create fence for.

Returns:

the newly assigned timestamp as a future. If an error was detected, the future will contain a corresponding protocol exception see org.apache.omid.tso.TimestampOracle see org.apache.omid.tso.TSOServer

commit

public TSOFuture<Long> commit(long transactionId,
                              Set<? extends CellId> cells,
                              Set<? extends CellId> conflictFreeWriteSet)

Description copied from interface: TSOProtocol

Returns the result of the conflict detection made on the server-side for the specified transaction

Specified by:

commit in interface TSOProtocol

Parameters:

transactionId - the transaction to check for conflicts

cells - the writeSet of the transaction, which includes all the modified cells

conflictFreeWriteSet - the conflict free writeSet of the transaction, needed only for table access information.

Returns:

the commit timestamp as a future if the transaction was committed. If the transaction was aborted due to conflicts with a concurrent transaction, the future will include an AbortException. If an error was detected, the future will contain a corresponding protocol exception see org.apache.omid.tso.TimestampOracle see org.apache.omid.tso.TSOServer

commit

public TSOFuture<Long> commit(long transactionId,
                              Set<? extends CellId> cells)

Description copied from interface: TSOProtocol

Returns the result of the conflict detection made on the server-side for the specified transaction

Specified by:

commit in interface TSOProtocol

Parameters:

transactionId - the transaction to check for conflicts

cells - the writeSet of the transaction, which includes all the modified cells

Returns:

the commit timestamp as a future if the transaction was committed. If the transaction was aborted due to conflicts with a concurrent transaction, the future will include an AbortException. If an error was detected, the future will contain a corresponding protocol exception see org.apache.omid.tso.TimestampOracle see org.apache.omid.tso.TSOServer

close

public TSOFuture<Void> close()

Description copied from interface: TSOProtocol

Closes the communication with the TSO server

Specified by:

close in interface TSOProtocol

Returns:

nothing. If an error was detected, the future will contain a corresponding protocol exception

isLowLatency

public boolean isLowLatency()

Description copied from interface: TSOProtocol

checks if tso is low latency protocol

Specified by:

isLowLatency in interface TSOProtocol

Returns:

setConflictDetectionLevel

public void setConflictDetectionLevel(OmidClientConfiguration.ConflictDetectionLevel conflictDetectionLevel)

Specified by:

setConflictDetectionLevel in interface TSOProtocol

getConflictDetectionLevel

public OmidClientConfiguration.ConflictDetectionLevel getConflictDetectionLevel()

Specified by:

getConflictDetectionLevel in interface TSOProtocol

getEpoch

public long getEpoch()

Description copied from interface: TSOProtocol

Returns the epoch of the current TSO server. Used in HA mode.

Specified by:

getEpoch in interface TSOProtocol

Returns:

the epoch.