Package com.soebes.itf.jupiter.extension

Class Preconditions

java.lang.Object

com.soebes.itf.jupiter.extension.Preconditions

@API(status=INTERNAL,
     since="0.9.0")
public class Preconditions
extends Object

Author:

Karl Heinz Marbaise

Method Summary

Modifier and Type	Method	Description
static <T> T[]	requireGreaterZero(T[] parameter, String message)	Check that the given array has a length which is greater than zero.
static String	requireNotEmpty(String parameter, String message)	Check that the given parameter is not empty.
static <T> T	requireNotNull(T parameter, String message)	Check that the given parameter is not null.

Methods inherited from class java.lang.Object

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

Method Details

requireNotNull

public static <T> T requireNotNull(T parameter,
 String message)

Check that the given parameter is not null.

Parameters:

parameter - The parameter which is checked not to be null.

message - The message which is thrown in the exception.

Returns:

the given paremter in case not being null.

Throws:

IllegalArgumentException - in case of parameter is null.

requireGreaterZero

public static <T> T[] requireGreaterZero(T[] parameter,
 String message)

Check that the given array has a length which is greater than zero.

Type Parameters:

T - The type of the parameter.

Parameters:

parameter - The array parameter of which the length will be checked.

message - The message to thrown in case of not fulfilling the condition.

Returns:

Return the original paramter if not raised the execption.

Throws:

IllegalArgumentException - in case the condition has not been fulfilled.

requireNotEmpty

public static String requireNotEmpty(String parameter,
 String message)

Check that the given parameter is not empty.

Parameters:

parameter - The String parameter which should not be empty.

message - The message to thrown in case of not fulfilling the condition.

Returns:

Return the original parameter if not raised the execption.

Throws:

IllegalArgumentException - in case the condition has not been fulfilled.