GroupSessionBuilder 0.78.1 API

All Implemented Interfaces:
```
public class GroupSessionBuilder

                    
```
GroupSessionBuilder is responsible for setting up group SenderKey encrypted sessions.
Once a session has been established, org.signal.libsignal.protocol.groups.GroupCipher can be used to encrypt/decrypt messages in that session.
The built sessions are unidirectional: they can be used either for sending or for receiving, but not both.
Sessions are constructed per (senderName + deviceId) tuple, with sending additionally parameterized on a per-group distributionId. Remote logical users are identified by their senderName, and each logical user can have multiple physical devices.
This class is not thread-safe.

Author:

Moxie Marlinspike

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description

Field Summary

Fields
Modifier and Type	Field	Description

Constructor Summary

Constructors
Constructor	Description
`GroupSessionBuilder(SenderKeyStore senderKeyStore)`

Enum Constant Summary

Enum Constants
Enum Constant	Description

Method Summary

Modifier and Type	Method	Description
`void`	`process(SignalProtocolAddress sender, SenderKeyDistributionMessage senderKeyDistributionMessage)`	Construct a group session for receiving messages from sender.
`SenderKeyDistributionMessage`	`create(SignalProtocolAddress sender, UUID distributionId)`	Construct a group session for sending messages.

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

- Constructor Detail
  - GroupSessionBuilder
```
GroupSessionBuilder(SenderKeyStore senderKeyStore)
```
- Method Detail
  - process
```
 void process(SignalProtocolAddress sender, SenderKeyDistributionMessage senderKeyDistributionMessage)
```
    Construct a group session for receiving messages from sender.
    
    Parameters:
    
    sender - The address of the device that sent the message.
    
    senderKeyDistributionMessage - A received SenderKeyDistributionMessage.
  - create
```
 SenderKeyDistributionMessage create(SignalProtocolAddress sender, UUID distributionId)
```
    Construct a group session for sending messages.
    
    Parameters:
    
    sender - The address of the current client.
    
    distributionId - An opaque identifier that uniquely identifies the group (but isn't the group ID).
    
    Returns:
    
    A SenderKeyDistributionMessage that is individually distributed to each member of the group.