All Implemented Interfaces:
```
public class SessionBuilder

                    
```
SessionBuilder is responsible for setting up encrypted sessions. Once a session has been established, org.signal.libsignal.protocol.SessionCipher can be used to encrypt/decrypt messages in that session.
Sessions are built from one of two different possible vectors:
- A org.signal.libsignal.protocol.state.PreKeyBundle retrieved from a server.
- A org.signal.libsignal.protocol.message.PreKeySignalMessage received from a client.
Only the first, however, is handled by SessionBuilder.
Sessions are constructed per recipientId + deviceId tuple. Remote logical users are identified by their recipientId, and each logical recipientId 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
`SessionBuilder(SessionStore sessionStore, PreKeyStore preKeyStore, SignedPreKeyStore signedPreKeyStore, IdentityKeyStore identityKeyStore, SignalProtocolAddress remoteAddress)`	Constructs a SessionBuilder.
`SessionBuilder(SignalProtocolStore store, SignalProtocolAddress remoteAddress)`	Constructs a SessionBuilder

Enum Constant Summary

Enum Constants
Enum Constant	Description

Method Summary

Modifier and Type	Method	Description
`void`	`process(PreKeyBundle preKey, UsePqRatchet usePqRatchet)`	Build a new session from a org.signal.libsignal.protocol.state.PreKeyBundle retrieved from a server.
`void`	`process(PreKeyBundle preKey, Instant now, UsePqRatchet usePqRatchet)`	Build a new session from a org.signal.libsignal.protocol.state.PreKeyBundle retrieved from a server.

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

- Constructor Detail
  - SessionBuilder
```
SessionBuilder(SessionStore sessionStore, PreKeyStore preKeyStore, SignedPreKeyStore signedPreKeyStore, IdentityKeyStore identityKeyStore, SignalProtocolAddress remoteAddress)
```
    Constructs a SessionBuilder.
    
    Parameters:
    
    sessionStore - The org.signal.libsignal.protocol.state.SessionStore to store the constructed session in.
    
    preKeyStore - The org.signal.libsignal.protocol.state.PreKeyStore where the client's local org.signal.libsignal.protocol.state.PreKeyRecords are stored.
    
    identityKeyStore - The org.signal.libsignal.protocol.state.IdentityKeyStore containing the client's identity key information.
    
    remoteAddress - The address of the remote user to build a session with.
  - SessionBuilder
```
SessionBuilder(SignalProtocolStore store, SignalProtocolAddress remoteAddress)
```
    Constructs a SessionBuilder
    
    Parameters:
    
    store - The SignalProtocolStore to store all state information in.
    
    remoteAddress - The address of the remote user to build a session with.
- Method Detail
  - process
```
 void process(PreKeyBundle preKey, UsePqRatchet usePqRatchet)
```
    Build a new session from a org.signal.libsignal.protocol.state.PreKeyBundle retrieved from a server.
    
    Parameters:
    
    preKey - A PreKey for the destination recipient, retrieved from a server.
  - process
```
 void process(PreKeyBundle preKey, Instant now, UsePqRatchet usePqRatchet)
```
    Build a new session from a org.signal.libsignal.protocol.state.PreKeyBundle retrieved from a server.
    You should only use this overload if you need to test session expiration explicitly.
    
    Parameters:
    
    preKey - A PreKey for the destination recipient, retrieved from a server.
    
    now - The current time, used later to check if the session is stale.

Class SessionBuilder

Nested Class Summary

Field Summary

Constructor Summary

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

SessionBuilder

SessionBuilder

Method Detail

process

process