Specifying @dll.import for an Entire Class

The @dll.import directive can also be used prior to the class definition to set a library name for all native methods declared in that class. The following declaration uses @dll.import for an entire class.

/** @dll.import("KERNEL32") */ class EnvironmentStrings 
{ 
  public static native int GetEnvironmentStrings();
  public static native int GetEnvironmentVariable(String name,
                            StringBuffer value, int ccbValue);
  public static native boolean SetEnvironmentVariable(String name,
                                                    String value);
} 

It is equivalent to specifying @dll.import for each method, as in the following example.

class EnvironmentStrings 
{ 
  /** @dll.import("KERNEL32") */ 
  public static native int GetEnvironmentStrings();

  /** @dll.import("KERNEL32") */
  public static native int GetEnvironmentVariable(String name, 
                              StringBuffer value, int ccbValue);

  /** @dll.import("KERNEL32") */
  public static native boolean SetEnvironmentVariable(String name,
                                                    String value);
}

Using the @dll.import directive at the class level saves space in the .class file and eliminates redundant information. However, class-level @dll.import directives are not inherited by subclasses.