java.lang.Object
- org.apache.wicket.util.lang.Checks

```
public class Checks
extends Object
```

Constructor Summary

Constructors
Constructor Description

Checks()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static void`	`notEmpty(String argument, String message, Object... params)`	Checks argument is not empty (not null and has a non-whitespace character)
`static void`	`notEmptyShort(String argument, String name)`	Checks argument is not empty (not null and has a non-whitespace character)
`static void`	`notNull(Object argument, String message, Object... params)`	Checks value is not null
`static void`	`notNullShort(Object argument, String name)`	Checks value is not null
`static <T extends Comparable<? super T>> void`	`withinRange(T min, T max, T value, String message)`	Checks if argument is within a range
`static <T extends Comparable<? super T>> void`	`withinRangeShort(T min, T max, T value, 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
- Checks
```
public Checks()
```

Method Detail

notNull

public static void notNull(Object argument,
                           String message,
                           Object... params)

Checks value is not null

Parameters:: argument -; message -; params -
Throws:: IllegalStateException

notEmpty

public static void notEmpty(String argument,
                            String message,
                            Object... params)

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

Parameters:: argument -; message -; params -
Throws:: IllegalStateException

withinRange

public static <T extends Comparable<? super T>> void withinRange(T min,
                                                                 T max,
                                                                 T value,
                                                                 String message)

Checks if argument is within a range

Type Parameters:: T -
Parameters:: min -; max -; value -; message -
Throws:: IllegalStateException

notNullShort

public static void notNullShort(Object argument,
                                String name)

Checks value is not null

Parameters:: argument -; name -
Throws:: IllegalStateException

notEmptyShort

public static void notEmptyShort(String argument,
                                 String name)

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

Parameters:: argument -; name -
Throws:: IllegalStateException

withinRangeShort

public static <T extends Comparable<? super T>> void withinRangeShort(T min,
                                                                      T max,
                                                                      T value,
                                                                      String name)

Checks if argument is within a range

Type Parameters:: T -
Parameters:: min -; max -; value -; name -
Throws:: IllegalStateException

Class Checks

Constructor Summary