Package com.sun.jna

Class VarArgsChecker

java.lang.Object
com.sun.jna.VarArgsChecker
abstract class VarArgsChecker extends Object
Class for checking if a method has vararg parameters. Use method create() to create an instance of this class. How the returned instance work depends on the capabilities of the underlying JVM implementation. On older versions of the VM not supporting varargs, the returned VarArgsChecker will always return false on calls to isVarArgs(Method).
Author:
Max Bureck

  • Method Details

    • create

      static VarArgsChecker create()
      Creates a new instance of a concrete subclass of VarArgsChecker, depending if Method.isVarArgs() exists.
      Returns:
      new instance of concrete VarArgsChecker subclass

    • isVarArgs

      abstract boolean isVarArgs(Method m)
      Checks if the given method was declared to take a variable number of arguments.
      Parameters:
      m - Method to be checked
      Returns:
      true if the given method takes a variable number of arguments, false otherwise.

    • fixedArgs

      abstract int fixedArgs(Method m)
      If variadic, returns the number of fixed arguments to the method.
      Parameters:
      m - Method to be checked
      Returns:
      Number of fixed arguments if the given method takes a variable number of arguments, zero otherwise.