org.javarosa.core.model.condition

Interface IFunctionHandler

public interface IFunctionHandler

Method Summary

Modifier and Type	Method and Description
Object	eval(Object[] args, EvaluationContext ec) Evaluate the function
String	getName()
List<Class[]>	getPrototypes()
boolean	rawArgs()
boolean	realTime()

Method Detail

getName

String getName()

Returns:

The name of function being handled

getPrototypes

List<Class[]> getPrototypes()

Returns:

List of allowed prototypes for this function. Each prototype is an array of Class, corresponding to the types of the expected arguments. The first matching prototype is used.

rawArgs

boolean rawArgs()

Returns:

true if this handler should be fed the raw argument list if no prototype matches it

realTime

boolean realTime()

Returns:

true if the result of this handler depends on some dynamic data source, and the expression cannot be pre-computed before the question is reached (un-supported)

eval

Object eval(Object[] args,
            EvaluationContext ec)

Evaluate the function