Apache Commons Collections 4.4 · org.apache.commons.collections4.functors.NullPredicate

Field Summary

Modifier and Type	Field and Description
public static final Predicate<T>	INSTANCE Singleton predicate instance
private static final long	serialVersionUID Serial version UID

Access	Constructor and Description
private	NullPredicate() Restricted constructor.

Modifier and Type	Method and Description
public boolean	Returns: true if input is null evaluate(final T the input object object) Implements org.apache.commons.collections4.Predicate.evaluate. Evaluates the predicate returning true if the input is null.
public static < the type that the predicate queries T> Predicate<T>	Returns: the singleton instance nullPredicate() Factory returning the singleton instance.
private Object	readResolve()

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

INSTANCE	back to summary
public static final Predicate<T> INSTANCE Singleton predicate instance Annotations @SuppressWarnings:rawtypes

serialVersionUID	back to summary
private static final long serialVersionUID Serial version UID

NullPredicate	back to summary
private NullPredicate() Restricted constructor.

evaluate	back to summary
public boolean evaluate(final T object) Implements org.apache.commons.collections4.Predicate.evaluate. Evaluates the predicate returning true if the input is null. Parameters object:T the input object Returns:boolean true if input is null Annotations @Override

evaluate

public boolean evaluate(final T object)

Evaluates the predicate returning true if the input is null.

Parameters

Returns:boolean

true if input is null

Annotations

nullPredicate	back to summary
public static <T> Predicate<T> nullPredicate() Factory returning the singleton instance. Parameters <T> the type that the predicate queries Returns:Predicate<T> the singleton instance Since 3.1

nullPredicate

public static <T> Predicate<T> nullPredicate()

Factory returning the singleton instance.

Parameters

Returns:Predicate<T>

the singleton instance

Since

3.1

readResolve	back to summary
private Object readResolve()