net.sf.ij_plugins.util

Class Validate

java.lang.Object

net.sf.ij_plugins.util.Validate

public final class Validate
extends java.lang.Object

Since:

Oct 22, 2009 7:34:52 PM

Author:

Jarek Sacha

Method Summary

Methods

Modifier and Type	Method and Description
static void	argumentNotNull(java.lang.Object object, java.lang.String name) Checks if the object is not null.
static void	isTrue(boolean expression, java.lang.String message) Validate that the argument condition is true; otherwise throwing an exception with the specified message.

Methods inherited from class java.lang.Object

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

Method Detail

argumentNotNull

public static void argumentNotNull(java.lang.Object object,
                   java.lang.String name)
                            throws java.lang.IllegalArgumentException

Checks if the object is not null. If it is null throws IllegalArgumentException.

Parameters:

object - argument to be validated.

name - argument name, used in exception message.

Throws:

java.lang.IllegalArgumentException - if object is null.

isTrue

public static void isTrue(boolean expression,
          java.lang.String message)
                   throws java.lang.IllegalArgumentException

Validate that the argument condition is true; otherwise throwing an exception with the specified message. This method is useful when validating according to an arbitrary boolean expression, such as validating a primitive number or using your own custom validation expression.

 Validate.isTrue( (i > 0), "The value must be greater than zero");
 Validate.isTrue( myObject.isOk(), "The object is not OK");
 

Parameters:

expression - the boolean expression to check

message - the exception message if invalid

Throws:

java.lang.IllegalArgumentException - if expression is false