Package org.apache.ofbiz.base.util

Class Assert

java.lang.Object

org.apache.ofbiz.base.util.Assert

@ThreadSafe
public final class Assert
extends Object

Basic assertions. The static methods in this class provide a convenient way to test method arguments. All of the methods in this class throw IllegalArgumentException if the method arguments are invalid.

Method Summary

Modifier and Type	Method	Description
static void	isAssignableTo(String argumentName, Object argumentObject, Class<?> targetClass)	Tests if an argument is not null and can be cast to a specified class.
static void	isInstanceOf(String argumentName, Object argumentObject, Class<?> targetClass)	Tests if an argument is not null and is an instance of a specified class.
static void	isInstanceOf(String argumentName, Object argumentObject, Class<?>... targetClasses)	Tests if an argument is not null and is an instance of one of the specified classes.
static void	isNotInstanceOf(String argumentName, Object argumentObject, Class<?> targetClass)	Tests if an argument is not null and is not an instance of a specified class.
static void	isNotInstanceOf(String argumentName, Object argumentObject, Class<?>... targetClasses)	Tests if an argument is not null and is not an instance of one of the specified classes.
static void	notEmpty(String argumentName, String argumentObject)	Tests if an argument is not null and is not empty.
static <T extends Map<?, ?>> void	notEmpty(String argumentName, T argumentObject)	Tests if an argument is not null and is not empty.
static <T> void	notEmpty(String argumentName, T[] argumentObject)	Tests if an argument is not null and is not empty.
static void	notNull(Object... arguments)	Tests a list of arguments for null.
static void	notNull(String argumentName, Object objectToTest)	Tests an argument for null.

Methods inherited from class java.lang.Object

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

Method Details

isAssignableTo

public static void isAssignableTo(String argumentName,
 Object argumentObject,
 Class<?> targetClass)

Tests if an argument is not null and can be cast to a specified class.

Assert.isAssignableTo("foo", foo, Foo.class);

Parameters:

argumentName -

argumentObject -

targetClass -

Throws:

IllegalArgumentException

isInstanceOf

public static void isInstanceOf(String argumentName,
 Object argumentObject,
 Class<?> targetClass)

Tests if an argument is not null and is an instance of a specified class.

Assert.isInstanceOf("foo", foo, Foo.class);

Parameters:

argumentName -

argumentObject -

targetClass -

Throws:

IllegalArgumentException

isInstanceOf

public static void isInstanceOf(String argumentName,
 Object argumentObject,
 Class<?>... targetClasses)

Tests if an argument is not null and is an instance of one of the specified classes.

Assert.isInstanceOf("foo", foo, Foo.class, Bar.class, ...);

Parameters:

argumentName -

argumentObject -

targetClasses -

Throws:

IllegalArgumentException

isNotInstanceOf

public static void isNotInstanceOf(String argumentName,
 Object argumentObject,
 Class<?> targetClass)

Tests if an argument is not null and is not an instance of a specified class.

Assert.isNotInstanceOf("foo", foo, Foo.class);

Parameters:

argumentName -

argumentObject -

targetClass -

Throws:

IllegalArgumentException

isNotInstanceOf

public static void isNotInstanceOf(String argumentName,
 Object argumentObject,
 Class<?>... targetClasses)

Tests if an argument is not null and is not an instance of one of the specified classes.

Assert.isNotInstanceOf("foo", foo, Foo.class, Bar.class, ...);

Parameters:

argumentName -

argumentObject -

targetClasses -

Throws:

IllegalArgumentException

notEmpty

public static void notEmpty(String argumentName,
 String argumentObject)

Tests if an argument is not null and is not empty.

Assert.notEmpty("foo", foo);

Parameters:

argumentName -

argumentObject -

Throws:

IllegalArgumentException

notEmpty

public static <T extends Map<?,
?>> void notEmpty(String argumentName,
 T argumentObject)

Tests if an argument is not null and is not empty.

Assert.notEmpty("foo", foo);

Parameters:

argumentName -

argumentObject -

Throws:

IllegalArgumentException

notEmpty

public static <T extends Collection<?>> void notEmpty(String argumentName,
 T argumentObject)

Tests if an argument is not null and is not empty.

Assert.notEmpty("foo", foo);

Parameters:

argumentName -

argumentObject -

Throws:

IllegalArgumentException

notEmpty

public static <T> void notEmpty(String argumentName,
 T[] argumentObject)

Tests if an argument is not null and is not empty.

Assert.notEmpty("foo", foo);

Parameters:

argumentName -

argumentObject -

Throws:

IllegalArgumentException

notNull

public static void notNull(Object... arguments)

Tests a list of arguments for null.

Assert.notNull("foo", foo, "bar", bar, ...);

Parameters:

arguments -

Throws:

IllegalArgumentException

notNull

public static void notNull(String argumentName,
 Object objectToTest)

Tests an argument for null.

Assert.notNull("foo", foo);

Parameters:

argumentName -

objectToTest -

Throws:

IllegalArgumentException