Package dev.cel.runtime

Interface CelFunctionResolver

  • All Known Implementing Classes:
    CelLateFunctionBindings, DefaultDispatcher
    @ThreadSafe
public interface CelFunctionResolver
    Interface to a resolver for CEL functions based on the function name, overload ids, and arguments.

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      java.util.Optional<CelResolvedOverload> findOverloadMatchingArgs​(java.lang.String functionName, java.lang.Object[] args)
      Finds a specific function overload to invoke based on given parameters, scanning all available overloads if necessary.
      java.util.Optional<CelResolvedOverload> findOverloadMatchingArgs​(java.lang.String functionName, java.util.Collection<java.lang.String> overloadIds, java.lang.Object[] args)
      Finds a specific function overload to invoke based on given parameters.

    • Method Detail

      • findOverloadMatchingArgs

        java.util.Optional<CelResolvedOverload> findOverloadMatchingArgs​(java.lang.String functionName,
                                                                 java.util.Collection<java.lang.String> overloadIds,
                                                                 java.lang.Object[] args)
                                                          throws CelEvaluationException
        Finds a specific function overload to invoke based on given parameters.
        Parameters:
        functionName - the logical name of the function being invoked.
        overloadIds - A list of function overload ids. The dispatcher selects the unique overload from this list with matching arguments.
        args - The arguments to pass to the function.
        Returns:
        an optional value of the resolved overload.
        Throws:
        CelEvaluationException - if the overload resolution is ambiguous,

      • findOverloadMatchingArgs

        java.util.Optional<CelResolvedOverload> findOverloadMatchingArgs​(java.lang.String functionName,
                                                                 java.lang.Object[] args)
                                                          throws CelEvaluationException
        Finds a specific function overload to invoke based on given parameters, scanning all available overloads if necessary.
        Parameters:
        functionName - the logical name of the function being invoked.
        args - The arguments to pass to the function.
        Returns:
        an optional value of the resolved overload.
        Throws:
        CelEvaluationException - if the overload resolution is ambiguous.