About Calling Functions from Labels
Use special characters to call functions that define complex label string formatting:
• For an internal function, use parentheses ( ) to enclose the list of parameters passed to the function. Use square brackets [ ] to enclose both the name of the function to call and the list of parameters. For example, [report_from_to(from,name,port)].
• For a Java method, use parentheses ( ) for the list of parameters passed to the function and curly brackets { } to enclose the name of the function to call and the list of functions. For example, {UserFunctions.userMethod(param1,param2)}.
• Use a comma to separate parameters in both the above functions.
You can use the Java API to define other functions for label format strings.
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Java methods are always called using the class.method() notation.
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