Several Observers in one Class.

Hi there !

Have a simple GWT's TextBox, using getText() and setText() manipulations via Observers.
Have one onClick event, and try to fetch some values from 2 Observers (simply modifying TextBox with Observer's internal setText(), getText() ), but unsuccessful, TextBox keeps it's old values.
I could notify updated TextBox's values inside the Observer, but how to deliver these TextBox's updated values via onClick event ?
Is there any specific use of Observer pattern in GWT ?
How to link several Observers on one event ?

Thank you all for useful feedback ! :)

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