Package com.apama.dashboard.function

Interface IFunctionLibrary

  • public interface IFunctionLibrary
    IFunctionLibrary is the interface a Dashboard Studio custom function library must implement. A function library provides the ability to extend Dashboard Studio through the addition of custom functions. A custom function library can implement multiple functions.

    • Method Detail

      • getFunctionDescriptors

        java.util.List<IFunctionDescriptor> getFunctionDescriptors()
        Get the list of FunctionDescriptors defining the functions implemented by the library.
        Returns:
        List of FunctionDescriptors.

      • evaluateFunction

        java.lang.Object evaluateFunction​(java.lang.String function,
                                  IVariableData variables)
        Invoke a function. Called at runtime when a data attachment requires data from a function.
        Parameters:
        function - Name of function to evaluate.
        variables - Variable arguments to function.
        Returns:
        Result of function. The data type returned must be of the type declared for the function.