org.axonframework.common

Class Assert

java.lang.Object

org.axonframework.common.Assert

public abstract class Assert
extends Object

Utility class (inspired by Springs Assert class) for doing assertions on parameters and object state. To remove the need for explicit dependencies on Spring, the functionality of that class is migrated to this class.

Since:

0.3

Author:

Allard Buijze

Method Summary

Methods

Modifier and Type	Method and Description
static void	isFalse(boolean expression, String message) Asserts that the given expression is false.
static void	isTrue(boolean expression, String message) Asserts that the given expression is true.
static void	notEmpty(String value, String message) Assert that the given value is not null or empty.
static void	notNull(Object value, String message) Assert that the given value is not null.
static void	state(boolean state, String message) Asserts that the value of state is true.

Methods inherited from class java.lang.Object

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

Method Detail

state

public static void state(boolean state,
         String message)

Asserts that the value of state is true. If not, an IllegalStateException is thrown.

Parameters:

state - the state validation expression

message - The message that the excetion contains if state evaluates to false

isTrue

public static void isTrue(boolean expression,
          String message)

Asserts that the given expression is true. If not, an IllegalArgumentException is thrown.

Parameters:

expression - the state validation expression

message - The message that the exception contains if state evaluates to false

isFalse

public static void isFalse(boolean expression,
           String message)

Asserts that the given expression is false. If not, an IllegalArgumentException is thrown.

Parameters:

expression - the state validation expression

message - The message that the exception contains if state evaluates to true

notNull

public static void notNull(Object value,
           String message)

Assert that the given value is not null. If not, an IllegalArgumentException is thrown.

Parameters:

value - the value not to be null

message - The message to add to the exception when the assertion fails

notEmpty

public static void notEmpty(String value,
            String message)

Assert that the given value is not null or empty. If not, an IllegalArgumentException is thrown.

Parameters:

value - the value to contain at least one character

message - The message to add to the exception when the assertion fails