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Allows an implementation to be notified when a Msg is about to be popped from an InputStream.
Method Summary | |
void |
afterPop(StreamInputStream anIn,
Msg aMsg,
Object anOpaque)
Notifies the implementation that a Msg has been popped. |
Object |
beforePop(StreamInputStream anIn)
Notifies the implementation that a Msg is being popped. |
Method Detail |
public Object beforePop(StreamInputStream anIn) throws IOException
anIn
- Used to read information from the input stream before
the Msg itself.
IOException
- Indicates that an I/O error has occured.public void afterPop(StreamInputStream anIn, Msg aMsg, Object anOpaque) throws IOException
anIn
- Used to read information from the input stream after
the Msg itself.aMsg
- Msg which has just been popped.anOpaque
- Value returned by beforePop.
IOException
- Indicates that an I/O error has occured.
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