org.jfree.graphics2d
Class Args

java.lang.Object
  org.jfree.graphics2d.Args

public class Args
extends Object

A utility class that performs checks for method argument validity.

Method Summary

static void	arrayMustHaveLength(int length, boolean[] array, String ref) Checks an array to ensure it has the correct length and throws an IllegalArgumentException if it does not.
static void	arrayMustHaveLength(int length, double[] array, String ref) Checks an array to ensure it has the correct length and throws an IllegalArgumentException if it does not.
static void	nullNotPermitted(Object obj, String ref) Checks that an argument is non-null and throws an IllegalArgumentException otherwise.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

nullNotPermitted

public static void nullNotPermitted(Object obj,
                                    String ref)

Checks that an argument is non-null and throws an IllegalArgumentException otherwise.

Parameters:

obj - the object to check for null.

ref - the text name for the parameter (to include in the exception message).

arrayMustHaveLength

public static void arrayMustHaveLength(int length,
                                       boolean[] array,
                                       String ref)

Checks an array to ensure it has the correct length and throws an IllegalArgumentException if it does not.

Parameters:

length - the required length.

array - the array to check.

ref - the text name of the array parameter (to include in the exception message).

arrayMustHaveLength

public static void arrayMustHaveLength(int length,
                                       double[] array,
                                       String ref)

Checks an array to ensure it has the correct length and throws an IllegalArgumentException if it does not.

Parameters:

length - the required length.

array - the array to check (null not permitted).

ref - the text name of the array parameter (to include in the exception message).