Tcp$

java.lang.Object
- org.apache.pekko.io.Tcp$

All Implemented Interfaces:

ExtensionId<TcpExt>, ExtensionIdProvider
```
public class Tcp$
extends java.lang.Object
implements ExtensionId<TcpExt>, ExtensionIdProvider
```
TCP Extension for Akka’s IO layer.
For a full description of the design and philosophy behind this IO implementation please refer to the Pekko online documentation.
In order to open an outbound connection send a Tcp.Connect message to the TcpExt.manager().
In order to start listening for inbound connections send a Tcp.Bind message to the TcpExt.manager().
The Java API for generating TCP commands is available at TcpMessage.

Field Summary

Fields
Modifier and Type Field Description

static Tcp$ MODULE$
Static reference to the singleton instance of this Scala object.

Constructor Summary

Constructors
Constructor Description

Tcp$()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`TcpExt`	`createExtension(ExtendedActorSystem system)`	Is used by Pekko to instantiate the Extension identified by this ExtensionId, internal use only.
`TcpExt`	`get(ActorSystem system)`	Java API: retrieve the Tcp extension for the given system.
`TcpExt`	`get(ClassicActorSystemProvider system)`	Returns an instance of the extension identified by this ExtensionId instance.
`Tcp$`	`lookup()`	Returns the canonical ExtensionId for this Extension

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.pekko.actor.ExtensionId
apply, apply, equals, hashCode

- Field Detail
  - MODULE$
```
public static final Tcp$ MODULE$
```
    Static reference to the singleton instance of this Scala object.
- Constructor Detail
  - Tcp$
```
public Tcp$()
```
- Method Detail
  - lookup
```
public Tcp$ lookup()
```
    Description copied from interface: ExtensionIdProvider
    
    Returns the canonical ExtensionId for this Extension
    
    Specified by:
    
    lookup in interface ExtensionIdProvider
  - createExtension
```
public TcpExt createExtension(ExtendedActorSystem system)
```
    Description copied from interface: ExtensionId
    
    Is used by Pekko to instantiate the Extension identified by this ExtensionId, internal use only.
    
    Specified by:
    
    createExtension in interface ExtensionId<TcpExt>
  - get
```
public TcpExt get(ActorSystem system)
```
    Java API: retrieve the Tcp extension for the given system.
    
    Specified by:
    
    get in interface ExtensionId<TcpExt>
  - get
```
public TcpExt get(ClassicActorSystemProvider system)
```
    Description copied from interface: ExtensionId
    Returns an instance of the extension identified by this ExtensionId instance. Java API For extensions written in Scala that are to be used from Java also, this method should be overridden to get correct return type.
    override def get(system: ClassicActorSystemProvider): TheExtension = super.get(system)
    Specified by:
    
    get in interface ExtensionId<TcpExt>