Class NullIsFalsePredicate<T>
java.lang.Object
org.apache.commons.collections4.functors.AbstractPredicate<T>
org.apache.commons.collections4.functors.NullIsFalsePredicate<T>
- Type Parameters:
- T- the type of the input to the predicate.
- All Implemented Interfaces:
- Serializable,- Predicate<T>,- PredicateDecorator<T>,- Predicate<T>
public final class NullIsFalsePredicate<T>
extends AbstractPredicate<T>
implements PredicateDecorator<T>, Serializable
Predicate implementation that returns false if the input is null.
- Since:
- 3.0
- See Also:
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Constructor SummaryConstructorsConstructorDescriptionNullIsFalsePredicate(Predicate<? super T> predicate) Constructor that performs no validation.
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Method SummaryModifier and TypeMethodDescriptionGets the predicate being decorated.static <T> Predicate<T> nullIsFalsePredicate(Predicate<? super T> predicate) Creates the null false predicate.booleanEvaluates the predicate returning the result of the decorated predicate once a null check is performed.Methods inherited from class org.apache.commons.collections4.functors.AbstractPredicateevaluate
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Constructor Details- 
NullIsFalsePredicateConstructor that performs no validation. UsenullIsFalsePredicateif you want that.- Parameters:
- predicate- the predicate to call after the null check
 
 
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Method Details- 
nullIsFalsePredicateCreates the null false predicate.- Type Parameters:
- T- the type that the predicate queries
- Parameters:
- predicate- the predicate to decorate, not null
- Returns:
- the predicate
- Throws:
- NullPointerException- if the predicate is null
 
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getPredicatesGets the predicate being decorated.- Specified by:
- getPredicatesin interface- PredicateDecorator<T>
- Returns:
- the predicate as the only element in an array
- Since:
- 3.1
 
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testEvaluates the predicate returning the result of the decorated predicate once a null check is performed.
 
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