com.datastax.driver.core

Class EmptyResultSetFuture

java.lang.Object

com.google.common.util.concurrent.AbstractFuture<com.datastax.driver.core.ResultSet>

com.datastax.driver.core.EmptyResultSetFuture

All Implemented Interfaces:

com.datastax.driver.core.ResultSetFuture, com.google.common.util.concurrent.ListenableFuture<com.datastax.driver.core.ResultSet>, Future<com.datastax.driver.core.ResultSet>

public class EmptyResultSetFuture
extends com.google.common.util.concurrent.AbstractFuture<com.datastax.driver.core.ResultSet>

The EmptyResultSetFuture class extends Cassandra ResultSetFuture in order to provide an empty result set when no query needed to be sent.

Since:

1.0

Version:

1 - Jan 19, 2015 - paouelle - Creation

Author:

The Helenus Driver Project Authors

Copyright:

2015-2017 The Helenus Driver Project Authors

Constructor Summary

Constructors

Constructor and Description
EmptyResultSetFuture(StatementManager mgr) Instantiates a new EmptyResultSetFuture object.

Method Summary

Modifier and Type	Method and Description
void	addListener(Runnable listener, Executor exec)
boolean	cancel(boolean mayInterruptIfRunning)
com.datastax.driver.core.ResultSet	get()
com.datastax.driver.core.ResultSet	get(long timeout, TimeUnit unit)
com.datastax.driver.core.ResultSet	getUninterruptibly()
com.datastax.driver.core.ResultSet	getUninterruptibly(long timeout, TimeUnit unit)
boolean	isCancelled()
boolean	isDone()
void	onException(com.datastax.driver.core.Connection arg0, Exception arg1, long arg2, int arg3)
void	onSet(com.datastax.driver.core.Connection arg0, com.datastax.driver.core.Message.Response arg1, com.datastax.driver.core.ExecutionInfo arg2, com.datastax.driver.core.Statement arg3, long arg4)
void	onSet(com.datastax.driver.core.Connection arg0, com.datastax.driver.core.Message.Response arg1, long arg2, int arg3)
boolean	onTimeout(com.datastax.driver.core.Connection arg0, long arg1, int arg2)
void	register(com.datastax.driver.core.RequestHandler arg0)
com.datastax.driver.core.Message.Request	request()
int	retryCount()

Methods inherited from class com.google.common.util.concurrent.AbstractFuture

interruptTask, set, setException, wasInterrupted

Methods inherited from class java.lang.Object

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

Constructor Detail

EmptyResultSetFuture

public EmptyResultSetFuture(StatementManager mgr)

Instantiates a new EmptyResultSetFuture object.

Parameters:

mgr - the statement manager

Throws:

NullPointerException - if mgr is null

Method Detail

getUninterruptibly

public com.datastax.driver.core.ResultSet getUninterruptibly()

Specified by:

getUninterruptibly in interface com.datastax.driver.core.ResultSetFuture

See Also:

ResultSetFuture.getUninterruptibly()

getUninterruptibly

public com.datastax.driver.core.ResultSet getUninterruptibly(long timeout,
                                                             TimeUnit unit)
                                                      throws TimeoutException

Specified by:

getUninterruptibly in interface com.datastax.driver.core.ResultSetFuture

Throws:

TimeoutException

See Also:

ResultSetFuture.getUninterruptibly(long, java.util.concurrent.TimeUnit)

cancel

public boolean cancel(boolean mayInterruptIfRunning)

Specified by:

cancel in interface com.datastax.driver.core.ResultSetFuture

Specified by:

cancel in interface Future<com.datastax.driver.core.ResultSet>

See Also:

ResultSetFuture.cancel(boolean)

get

public com.datastax.driver.core.ResultSet get(long timeout,
                                              TimeUnit unit)
                                       throws InterruptedException,
                                              TimeoutException,
                                              ExecutionException

Specified by:

get in interface Future<com.datastax.driver.core.ResultSet>

Overrides:

get in class com.google.common.util.concurrent.AbstractFuture<com.datastax.driver.core.ResultSet>

Throws:

InterruptedException

TimeoutException

ExecutionException

See Also:

AbstractFuture.get(long, java.util.concurrent.TimeUnit)

get

public com.datastax.driver.core.ResultSet get()
                                       throws InterruptedException,
                                              ExecutionException

Specified by:

get in interface Future<com.datastax.driver.core.ResultSet>

Overrides:

get in class com.google.common.util.concurrent.AbstractFuture<com.datastax.driver.core.ResultSet>

Throws:

InterruptedException

ExecutionException

See Also:

AbstractFuture.get()

isDone

public boolean isDone()

Specified by:

isDone in interface Future<com.datastax.driver.core.ResultSet>

Overrides:

isDone in class com.google.common.util.concurrent.AbstractFuture<com.datastax.driver.core.ResultSet>

See Also:

AbstractFuture.isDone()

isCancelled

public boolean isCancelled()

Specified by:

isCancelled in interface Future<com.datastax.driver.core.ResultSet>

Overrides:

isCancelled in class com.google.common.util.concurrent.AbstractFuture<com.datastax.driver.core.ResultSet>

See Also:

AbstractFuture.isCancelled()

addListener

public void addListener(Runnable listener,
                        Executor exec)

Specified by:

addListener in interface com.google.common.util.concurrent.ListenableFuture<com.datastax.driver.core.ResultSet>

Overrides:

addListener in class com.google.common.util.concurrent.AbstractFuture<com.datastax.driver.core.ResultSet>

See Also:

AbstractFuture.addListener(java.lang.Runnable, java.util.concurrent.Executor)

register

public void register(com.datastax.driver.core.RequestHandler arg0)

request

public com.datastax.driver.core.Message.Request request()

onSet

public void onSet(com.datastax.driver.core.Connection arg0,
                  com.datastax.driver.core.Message.Response arg1,
                  com.datastax.driver.core.ExecutionInfo arg2,
                  com.datastax.driver.core.Statement arg3,
                  long arg4)

onSet

public void onSet(com.datastax.driver.core.Connection arg0,
                  com.datastax.driver.core.Message.Response arg1,
                  long arg2,
                  int arg3)

onException

public void onException(com.datastax.driver.core.Connection arg0,
                        Exception arg1,
                        long arg2,
                        int arg3)

onTimeout

public boolean onTimeout(com.datastax.driver.core.Connection arg0,
                         long arg1,
                         int arg2)

retryCount

public int retryCount()