NutsFunction


1   package jfun.yan.xml;
2   
3   /**
4    * A NutsFunction is the result of the &lt;function&gt; tag
5    * in the Nuts configuration file.
6    * <p>
7    * @author Ben Yu
8    * Nov 23, 2005 1:41:45 AM
9    */
10  public interface NutsFunction extends LocationAware, java.io.Serializable  {
11    /**
12     * Call the function with arguments.
13     * @param args the arguments.
14     * @return the return value.
15     */
16    Object   call(Object  [] args);
17    /**
18     * Get the function name.
19     * @return the name.
20     */
21    String   getName();
22    /**
23     * Get the number of parameters expected.
24     */
25    int getParameterCount();
26    
27    /**
28     * Get the return type of the function.
29     * Null is returned if unknown.
30     */
31    Class   getReturnType();
32    
33    /**
34     * Get the names of the parameters.
35     */
36    String  [] getParameterNames();
37  }
38

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