Package org.jboss.weld.util

Class Preconditions

java.lang.Object

org.jboss.weld.util.Preconditions

public class Preconditions
extends Object

Author:

Jozef Hartinger

Method Summary

Modifier and Type	Method	Description
static void	checkArgument(boolean condition, Object argument)
static void	checkArgument(boolean condition, String message)
static void	checkArgumentNotNull(Object reference)	Throws IllegalArgumentException if the reference is null.
static void	checkArgumentNotNull(Object reference, String argumentName)	Throws IllegalArgumentException with an appropriate message if the reference is null.
static void	checkNotNull(Object reference)

Methods inherited from class java.lang.Object

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

Method Details

checkArgumentNotNull

public static void checkArgumentNotNull(Object reference,
 String argumentName)

Throws IllegalArgumentException with an appropriate message if the reference is null.

Parameters:

reference - the reference to be checked

argumentName - name of the argument that is being checked. The name used in the error message.

checkArgumentNotNull

public static void checkArgumentNotNull(Object reference)

Throws IllegalArgumentException if the reference is null. This method should only be used for methods with single argument.

Parameters:

reference - the reference to be checked

checkNotNull

public static void checkNotNull(Object reference)

Parameters:

reference - The reference to be checked

Throws:

NullPointerException - if the reference is null

checkArgument

public static void checkArgument(boolean condition,
 Object argument)

checkArgument

public static void checkArgument(boolean condition,
 String message)