Package org.moeaframework.util.validate

Class ObjectValidator<T>

java.lang.Object

org.moeaframework.util.validate.Validator<T>

org.moeaframework.util.validate.ObjectValidator<T>

Type Parameters:

T - the object type

Direct Known Subclasses:

ProblemValidator

public class ObjectValidator<T>
extends Validator<T>

Validator for generic objects, including arrays.

Constructor Summary

Constructors

Constructor	Description
ObjectValidator(String propertyName, T propertyValue)	Constructs a new validator.

Method Summary

Modifier and Type	Method	Description
final <R extends T> R	isA(Class<R> type)	Asserts the given object is the requested type.
final void	isNotEmpty()	Asserts the given object is not empty.
final void	isNotNull()	Asserts the object is not null.

Methods inherited from class org.moeaframework.util.validate.Validator

fails, failUnsupportedOption, failUnsupportedOption, getPropertyName, getPropertyValue

Methods inherited from class java.lang.Object

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

Constructor Details

ObjectValidator

public ObjectValidator(String propertyName,
 T propertyValue)

Constructs a new validator.

Parameters:

propertyName - the property name corresponding to the object

propertyValue - the object

Method Details

isNotNull

public final void isNotNull()

Asserts the object is not null.

isNotEmpty

public final void isNotEmpty()

Asserts the given object is not empty. An empty object is defined as:

1. A null value,
2. An array with length 0, or
3. An Iterable that contains no elements, which applies to practically all collection types, .

isA

public final <R extends T> R isA(Class<R> type)

Asserts the given object is the requested type. This method also returns the object cast to the type.

Type Parameters:

R - the return type

Parameters:

type - the requested type

Returns:

the object cast to the requested type