[OmniFaces utilities] The
Callback represents a collection of serializable callback interfaces. Useful in (mini) visitor and strategy patterns.
In case
you don't know, OmniFaces 2.0 comes with a set of un-serializable callback interfaces useful in
(mini) visitor and strategy patterns.
OmniFaces 2.0 also supports a callback which takes two arguments, but this was removed in OmniFaces 2.1. For the rest
of Callbacks,
OmniFaces 2.1 provides a Serializable version. But, if you need the un-
Let's see what we have in OmniFaces 2.1 beside OmniFaces 2.0:
Let's see what we have in OmniFaces 2.1 beside OmniFaces 2.0:
·         serializable void callback
·         serializable callback which returns a value
·         serializable callback which takes an argument
·        serializable callback which takes one argument and returns
one value
Check out the blog Callback submenu to see several examples of using these interfaces to:
- invoke an operation for each component in the component tree via OmniFaces Components#forEach
- OmniFaces 2.0 - ReadOnlyValueExpression that can be set when the "real" value is not yet available
- OmniFaces 2.1 - ReadOnlyValueExpression that can be set when the "real" value is not yet available





 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 


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