org.fuin.objects4j
Class Contract

java.lang.Object
  org.fuin.objects4j.Contract

public final class Contract
extends Object

Utility class for assertions on objects.

Method Summary

static void	requireArgNotNull(String name, Object value) Checks if the value is not null.
static void	requireValid(Object value) Checks if the given value is valid.

Methods inherited from class java.lang.Object

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

Method Detail

requireArgNotNull

public static void requireArgNotNull(String name,
                                     Object value)
                              throws ContractViolationException

Checks if the value is not null.

Parameters:

name - Name of the value for a possible error message.

value - Value to check.

Throws:

ContractViolationException - The value was null.

requireValid

public static void requireValid(Object value)
                         throws ContractViolationException

Checks if the given value is valid.

Parameters:

value - Value to check.

Throws:

ContractViolationException - The value is invalid.