- Direct Known Subclasses:
public abstract class JingleSessionState extends ObjectImplement the Jingle Session state using the State Behavioral pattern. (From the book Design Patterns, AKA GoF.) These classes also employ the Flyweight and Singleton patterns as recommended for the State pattern by GoF. There seems to be three ways to go with the State pattern in Java: interface, abstract class and enums. Most of the accepted models use abstract classes. It wasn't clear to me that any of the three models was superior, so I went with the most common example.
Constructors Constructor Description
All Methods Static Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description
enter()Called when entering the state.
exit()Called when exiting the state.
getInstance()Called when entering the state.
processJingle(JingleSession session, Jingle jingle, JingleActionEnum action)Process an incoming Jingle Packet.
toString()For debugging just emit the short name of the class.
public static JingleSessionState getInstance()Called when entering the state.
- the jingle session state.
public abstract void enter()Called when entering the state.
public abstract void exit()Called when exiting the state.
public abstract IQ processJingle(JingleSession session, Jingle jingle, JingleActionEnum action) throws SmackException, InterruptedExceptionProcess an incoming Jingle Packet. When you look at the GoF State pattern this method roughly corresponds to example on p310: ProcessOctect()
session- the jingle session.
jingle- the jingle stanza.
action- the jingle action.
- the resulting IQ.
SmackException- if Smack detected an exceptional situation.
InterruptedException- if the calling thread was interrupted.