org.apache.wicket.util.lang
Class Args

java.lang.Object
  org.apache.wicket.util.lang.Args

public class Args
extends java.lang.Object

Constructor Summary

Args()

Method Summary

static boolean	isFalse(boolean argument, java.lang.String msg, java.lang.Object... params) Check if argument is false
static boolean	isTrue(boolean argument, java.lang.String msg, java.lang.Object... params) Check if argument is true
static <T extends java.lang.CharSequence> T	notEmpty(T argument, java.lang.String name) Checks argument is not empty (not null and has a non-whitespace character)
static <T> T	notNull(T argument, java.lang.String name) Checks argument is not null
static <T extends java.lang.Comparable<T>> void	withinRange(T min, T max, T value, java.lang.String name) Checks if argument is within a range

Methods inherited from class java.lang.Object

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

Constructor Detail

Args

public Args()

Method Detail

notNull

public static <T> T notNull(T argument,
                            java.lang.String name)

Checks argument is not null

Type Parameters:

T -

Parameters:

argument -

name -

Returns:

The 'argument' parameter

Throws:

java.lang.IllegalArgumentException

notEmpty

public static <T extends java.lang.CharSequence> T notEmpty(T argument,
                                                            java.lang.String name)

Checks argument is not empty (not null and has a non-whitespace character)

Type Parameters:

T - the type of the argument to check for emptiness

Parameters:

argument - the argument to check for emptiness

name - the name to use in the error message

Returns:

The argument parameter if not empty

Throws:

java.lang.IllegalArgumentException - when the passed argument is empty

withinRange

public static <T extends java.lang.Comparable<T>> void withinRange(T min,
                                                                   T max,
                                                                   T value,
                                                                   java.lang.String name)

Checks if argument is within a range

Type Parameters:

T -

Parameters:

min -

max -

value -

name -

Throws:

java.lang.IllegalArgumentException

isTrue

public static boolean isTrue(boolean argument,
                             java.lang.String msg,
                             java.lang.Object... params)

Check if argument is true

Parameters:

argument -

msg -

params -

Returns:

argument

isFalse

public static boolean isFalse(boolean argument,
                              java.lang.String msg,
                              java.lang.Object... params)

Check if argument is false

Parameters:

argument -

msg -

params -

Returns:

argument