# Uses of Interface
org.apache.commons.collections4.Predicate

Packages that use Predicate
Package
Description
org.apache.commons.collections4
Interfaces and utilities shared across all packages.
org.apache.commons.collections4.bag
Implements the `Bag` and `SortedBag` interfaces.
org.apache.commons.collections4.collection
Implementations of the `Collection` interface.
org.apache.commons.collections4.functors
Implements the `Closure`, `Predicate`, `Transformer` and `Factory` interfaces.
org.apache.commons.collections4.iterators
Implements the `Iterator` interface.
org.apache.commons.collections4.list
Implements the `List` interface.
org.apache.commons.collections4.map
Implements the `Map`, `IterableMap`, `OrderedMap` and `SortedMap` interfaces.
org.apache.commons.collections4.multiset
Implements the `MultiSet` interface.
org.apache.commons.collections4.queue
Implements the `Queue` interface.
org.apache.commons.collections4.set
Implements the `Set`, `SortedSet` and `NavigableSet` interfaces.

- ## Uses of Predicate in org.apache.commons.collections4

  Methods in org.apache.commons.collections4 that return Predicate
  Modifier and Type
  Method
  Description
  `static <T> Predicate<T>`
  PredicateUtils.`allPredicate(Collection<? extends Predicate<? super T>> predicates)`
  Create a new Predicate that returns true only if all of the specified predicates are true.
  `static <T> Predicate<T>`
  PredicateUtils.`allPredicate(Predicate<? super T>... predicates)`
  Create a new Predicate that returns true only if all of the specified predicates are true.
  `static <T> Predicate<T>`
  PredicateUtils.`andPredicate(Predicate<? super T> predicate1, Predicate<? super T> predicate2)`
  Create a new Predicate that returns true only if both of the specified predicates are true.
  `static <T> Predicate<T>`
  PredicateUtils.`anyPredicate(Collection<? extends Predicate<? super T>> predicates)`
  Create a new Predicate that returns true if any of the specified predicates are true.
  `static <T> Predicate<T>`
  PredicateUtils.`anyPredicate(Predicate<? super T>... predicates)`
  Create a new Predicate that returns true if any of the specified predicates are true.
  `static <T> Predicate<T>`
  PredicateUtils.`asPredicate(Transformer<? super T,Boolean> transformer)`
  Create a new Predicate that wraps a Transformer.
  `static <T> Predicate<T>`
  PredicateUtils.`eitherPredicate(Predicate<? super T> predicate1, Predicate<? super T> predicate2)`
  Create a new Predicate that returns true if one, but not both, of the specified predicates are true.
  `static <T> Predicate<T>`
  PredicateUtils.`equalPredicate(T value)`
  Creates a Predicate that checks if the input object is equal to the specified object using equals().
  `static <T> Predicate<T>`
  PredicateUtils.`exceptionPredicate()`
  Gets a Predicate that always throws an exception.
  `static <T> Predicate<T>`
  PredicateUtils.`falsePredicate()`
  Gets a Predicate that always returns false.
  `static <T> Predicate<T>`
  PredicateUtils.`identityPredicate(T value)`
  Creates a Predicate that checks if the input object is equal to the specified object by identity.
  `static Predicate<Object>`
  PredicateUtils.`instanceofPredicate(Class<?> type)`
  Creates a Predicate that checks if the object passed in is of a particular type, using instanceof.
  `static <T> Predicate<T>`
  PredicateUtils.`invokerPredicate(String methodName)`
  Creates a Predicate that invokes a method on the input object.
  `static <T> Predicate<T>`
  PredicateUtils.`invokerPredicate(String methodName, Class<?>[] paramTypes, Object[] args)`
  Creates a Predicate that invokes a method on the input object.
  `static <T> Predicate<T>`
  PredicateUtils.`neitherPredicate(Predicate<? super T> predicate1, Predicate<? super T> predicate2)`
  Create a new Predicate that returns true if neither of the specified predicates are true.
  `static <T> Predicate<T>`
  PredicateUtils.`nonePredicate(Collection<? extends Predicate<? super T>> predicates)`
  Create a new Predicate that returns true if none of the specified predicates are true.
  `static <T> Predicate<T>`
  PredicateUtils.`nonePredicate(Predicate<? super T>... predicates)`
  Create a new Predicate that returns true if none of the specified predicates are true.
  `static <T> Predicate<T>`
  PredicateUtils.`notNullPredicate()`
  Gets a Predicate that checks if the input object passed in is not null.
  `static <T> Predicate<T>`
  PredicateUtils.`notPredicate(Predicate<? super T> predicate)`
  Create a new Predicate that returns true if the specified predicate returns false and vice versa.
  `static <T> Predicate<T>`
  PredicateUtils.`nullIsExceptionPredicate(Predicate<? super T> predicate)`
  Gets a Predicate that throws an exception if the input object is null, otherwise it calls the specified Predicate.
  `static <T> Predicate<T>`
  PredicateUtils.`nullIsFalsePredicate(Predicate<? super T> predicate)`
  Gets a Predicate that returns false if the input object is null, otherwise it calls the specified Predicate.
  `static <T> Predicate<T>`
  PredicateUtils.`nullIsTruePredicate(Predicate<? super T> predicate)`
  Gets a Predicate that returns true if the input object is null, otherwise it calls the specified Predicate.
  `static <T> Predicate<T>`
  PredicateUtils.`nullPredicate()`
  Gets a Predicate that checks if the input object passed in is null.
  `static <T> Predicate<T>`
  PredicateUtils.`onePredicate(Collection<? extends Predicate<? super T>> predicates)`
  Create a new Predicate that returns true if only one of the specified predicates are true.
  `static <T> Predicate<T>`
  PredicateUtils.`onePredicate(Predicate<? super T>... predicates)`
  Create a new Predicate that returns true if only one of the specified predicates are true.
  `static <T> Predicate<T>`
  PredicateUtils.`orPredicate(Predicate<? super T> predicate1, Predicate<? super T> predicate2)`
  Create a new Predicate that returns true if either of the specified predicates are true.
  `static <T> Predicate<T>`
  PredicateUtils.`transformedPredicate(Transformer<? super T,? extends T> transformer, Predicate<? super T> predicate)`
  Creates a predicate that transforms the input object before passing it to the predicate.
  `static <T> Predicate<T>`
  PredicateUtils.`truePredicate()`
  Gets a Predicate that always returns true.
  `static <T> Predicate<T>`
  PredicateUtils.`uniquePredicate()`
  Creates a Predicate that returns true the first time an object is encountered, and false if the same object is received again.
  Methods in org.apache.commons.collections4 with parameters of type Predicate
  Modifier and Type
  Method
  Description
  `boolean`
  FluentIterable.`allMatch(Predicate<? super E> predicate)`
  Checks if all elements contained in this iterable are matching the provided predicate.
  `static <T> Predicate<T>`
  PredicateUtils.`allPredicate(Predicate<? super T>... predicates)`
  Create a new Predicate that returns true only if all of the specified predicates are true.
  `static <T> Predicate<T>`
  PredicateUtils.`andPredicate(Predicate<? super T> predicate1, Predicate<? super T> predicate2)`
  Create a new Predicate that returns true only if both of the specified predicates are true.
  `boolean`
  FluentIterable.`anyMatch(Predicate<? super E> predicate)`
  Checks if this iterable contains any element matching the provided predicate.
  `static <T> Predicate<T>`
  PredicateUtils.`anyPredicate(Predicate<? super T>... predicates)`
  Create a new Predicate that returns true if any of the specified predicates are true.
  `static <T> Transformer<T,Boolean>`
  TransformerUtils.`asTransformer(Predicate<? super T> predicate)`
  Creates a Transformer that calls a Predicate each time the transformer is used.
  `static <C> int`
  CollectionUtils.`countMatches(Iterable<C> input, Predicate<? super C> predicate)`
  Deprecated.
  since 4.1, use `IterableUtils.countMatches(Iterable, Predicate)` instead
  `static <E> long`
  IterableUtils.`countMatches(Iterable<E> input, Predicate<? super E> predicate)`
  Counts the number of elements in the input iterable that match the predicate.
  `static <E> Closure<E>`
  ClosureUtils.`doWhileClosure(Closure<? super E> closure, Predicate<? super E> predicate)`
  Creates a Closure that will call the closure once and then repeatedly until the predicate returns false.
  `static <T> Predicate<T>`
  PredicateUtils.`eitherPredicate(Predicate<? super T> predicate1, Predicate<? super T> predicate2)`
  Create a new Predicate that returns true if one, but not both, of the specified predicates are true.
  `static <C> boolean`
  CollectionUtils.`exists(Iterable<C> input, Predicate<? super C> predicate)`
  Deprecated.
  since 4.1, use `IterableUtils.matchesAny(Iterable, Predicate)` instead
  `static <T> boolean`
  CollectionUtils.`filter(Iterable<T> collection, Predicate<? super T> predicate)`
  Filter the collection by applying a Predicate to each element.
  `FluentIterable<E>`
  FluentIterable.`filter(Predicate<? super E> predicate)`
  Returns a new FluentIterable whose iterator will only return elements from this iterable matching the provided predicate.
  `static <E> Iterable<E>`
  IterableUtils.`filteredIterable(Iterable<E> iterable, Predicate<? super E> predicate)`
  Returns a view of the given iterable that only contains elements matching the provided predicate.
  `static <E> Iterator<E>`
  IteratorUtils.`filteredIterator(Iterator<? extends E> iterator, Predicate<? super E> predicate)`
  Gets an iterator that filters another iterator.
  `static <E> ListIterator<E>`
  IteratorUtils.`filteredListIterator(ListIterator<? extends E> listIterator, Predicate<? super E> predicate)`
  Gets a list iterator that filters another list iterator.
  `static <T> boolean`
  CollectionUtils.`filterInverse(Iterable<T> collection, Predicate<? super T> predicate)`
  Filter the collection by applying a Predicate to each element.
  `static <T> T`
  CollectionUtils.`find(Iterable<T> collection, Predicate<? super T> predicate)`
  Deprecated.
  since 4.1, use `IterableUtils.find(Iterable, Predicate)` instead
  `static <E> E`
  IterableUtils.`find(Iterable<E> iterable, Predicate<? super E> predicate)`
  Finds the first element in the given iterable which matches the given predicate.
  `static <E> E`
  IteratorUtils.`find(Iterator<E> iterator, Predicate<? super E> predicate)`
  Finds the first element in the given iterator which matches the given predicate.
  `static <E> Closure<E>`
  ClosureUtils.`ifClosure(Predicate<? super E> predicate, Closure<? super E> trueClosure)`
  Create a new Closure that calls another closure based on the result of the specified predicate.
  `static <E> Closure<E>`
  ClosureUtils.`ifClosure(Predicate<? super E> predicate, Closure<? super E> trueClosure, Closure<? super E> falseClosure)`
  Create a new Closure that calls one of two closures depending on the specified predicate.
  `static <I, O> Transformer<I,O>`
  TransformerUtils.`ifTransformer(Predicate<? super I> predicate, Transformer<? super I,? extends O> trueTransformer, Transformer<? super I,? extends O> falseTransformer)`
  Create a new Transformer that calls one of two transformers depending on the specified predicate.
  `static <T> Transformer<T,T>`
  TransformerUtils.`ifTransformer(Predicate<? super T> predicate, Transformer<? super T,? extends T> trueTransformer)`
  Create a new Transformer that calls the transformer if the predicate is true, otherwise the input object is returned unchanged.
  `static <E> int`
  IterableUtils.`indexOf(Iterable<E> iterable, Predicate<? super E> predicate)`
  Returns the index of the first element in the specified iterable that matches the given predicate.
  `static <E> int`
  IteratorUtils.`indexOf(Iterator<E> iterator, Predicate<? super E> predicate)`
  Returns the index of the first element in the specified iterator that matches the given predicate.
  `static <E> int`
  ListUtils.`indexOf(List<E> list, Predicate<E> predicate)`
  Finds the first index in the given List which matches the given predicate.
  `static <C> boolean`
  CollectionUtils.`matchesAll(Iterable<C> input, Predicate<? super C> predicate)`
  Deprecated.
  since 4.1, use `IterableUtils.matchesAll(Iterable, Predicate)` instead
  `static <E> boolean`
  IterableUtils.`matchesAll(Iterable<E> iterable, Predicate<? super E> predicate)`
  Answers true if a predicate is true for every element of an iterable.
  `static <E> boolean`
  IteratorUtils.`matchesAll(Iterator<E> iterator, Predicate<? super E> predicate)`
  Answers true if a predicate is true for every element of an iterator.
  `static <E> boolean`
  IterableUtils.`matchesAny(Iterable<E> iterable, Predicate<? super E> predicate)`
  Answers true if a predicate is true for any element of the iterable.
  `static <E> boolean`
  IteratorUtils.`matchesAny(Iterator<E> iterator, Predicate<? super E> predicate)`
  Answers true if a predicate is true for any element of the iterator.
  `static <T> Predicate<T>`
  PredicateUtils.`neitherPredicate(Predicate<? super T> predicate1, Predicate<? super T> predicate2)`
  Create a new Predicate that returns true if neither of the specified predicates are true.
  `static <T> Predicate<T>`
  PredicateUtils.`nonePredicate(Predicate<? super T>... predicates)`
  Create a new Predicate that returns true if none of the specified predicates are true.
  `static <T> Predicate<T>`
  PredicateUtils.`notPredicate(Predicate<? super T> predicate)`
  Create a new Predicate that returns true if the specified predicate returns false and vice versa.
  `static <T> Predicate<T>`
  PredicateUtils.`nullIsExceptionPredicate(Predicate<? super T> predicate)`
  Gets a Predicate that throws an exception if the input object is null, otherwise it calls the specified Predicate.
  `static <T> Predicate<T>`
  PredicateUtils.`nullIsFalsePredicate(Predicate<? super T> predicate)`
  Gets a Predicate that returns false if the input object is null, otherwise it calls the specified Predicate.
  `static <T> Predicate<T>`
  PredicateUtils.`nullIsTruePredicate(Predicate<? super T> predicate)`
  Gets a Predicate that returns true if the input object is null, otherwise it calls the specified Predicate.
  `static <T> Predicate<T>`
  PredicateUtils.`onePredicate(Predicate<? super T>... predicates)`
  Create a new Predicate that returns true if only one of the specified predicates are true.
  `static <T> Predicate<T>`
  PredicateUtils.`orPredicate(Predicate<? super T> predicate1, Predicate<? super T> predicate2)`
  Create a new Predicate that returns true if either of the specified predicates are true.
  `static <O, R extends Collection<O>>
  List<R>`
  IterableUtils.`partition(Iterable<? extends O> iterable, Factory<R> partitionFactory, Predicate<? super O>... predicates)`
  Partitions all elements from iterable into separate output collections, based on the evaluation of the given predicates.
  `static <O> List<List<O>>`
  IterableUtils.`partition(Iterable<? extends O> iterable, Predicate<? super O> predicate)`
  Partitions all elements from iterable into separate output collections, based on the evaluation of the given predicate.
  `static <O> List<List<O>>`
  IterableUtils.`partition(Iterable<? extends O> iterable, Predicate<? super O>... predicates)`
  Partitions all elements from iterable into separate output collections, based on the evaluation of the given predicates.
  `static <E> Bag<E>`
  BagUtils.`predicatedBag(Bag<E> bag, Predicate<? super E> predicate)`
  Returns a predicated (validating) bag backed by the given bag.
  `static <C> Collection<C>`
  CollectionUtils.`predicatedCollection(Collection<C> collection, Predicate<? super C> predicate)`
  Returns a predicated (validating) collection backed by the given collection.
  `static <E> List<E>`
  ListUtils.`predicatedList(List<E> list, Predicate<E> predicate)`
  Returns a predicated (validating) list backed by the given list.
  `static <K, V> IterableMap<K,V>`
  MapUtils.`predicatedMap(Map<K,V> map, Predicate<? super K> keyPred, Predicate<? super V> valuePred)`
  Returns a predicated (validating) map backed by the given map.
  `static <E> MultiSet<E>`
  MultiSetUtils.`predicatedMultiSet(MultiSet<E> multiset, Predicate<? super E> predicate)`
  Returns a predicated (validating) multiset backed by the given multiset.
  `static <E> SortedSet<E>`
  SetUtils.`predicatedNavigableSet(NavigableSet<E> set, Predicate<? super E> predicate)`
  Returns a predicated (validating) navigable set backed by the given navigable set.
  `static <E> Queue<E>`
  QueueUtils.`predicatedQueue(Queue<E> queue, Predicate<? super E> predicate)`
  Returns a predicated (validating) queue backed by the given queue.
  `static <E> Set<E>`
  SetUtils.`predicatedSet(Set<E> set, Predicate<? super E> predicate)`
  Returns a predicated (validating) set backed by the given set.
  `static <E> SortedBag<E>`
  BagUtils.`predicatedSortedBag(SortedBag<E> bag, Predicate<? super E> predicate)`
  Returns a predicated (validating) sorted bag backed by the given sorted bag.
  `static <K, V> SortedMap<K,V>`
  MapUtils.`predicatedSortedMap(SortedMap<K,V> map, Predicate<? super K> keyPred, Predicate<? super V> valuePred)`
  Returns a predicated (validating) sorted map backed by the given map.
  `static <E> SortedSet<E>`
  SetUtils.`predicatedSortedSet(SortedSet<E> set, Predicate<? super E> predicate)`
  Returns a predicated (validating) sorted set backed by the given sorted set.
  `static <O> Collection<O>`
  CollectionUtils.`select(Iterable<? extends O> inputCollection, Predicate<? super O> predicate)`
  Selects all elements from input collection which match the given predicate into an output collection.
  `static <O, R extends Collection<? super O>>
  R`
  CollectionUtils.`select(Iterable<? extends O> inputCollection, Predicate<? super O> predicate, R outputCollection)`
  Selects all elements from input collection which match the given predicate and adds them to outputCollection.
  `static <O, R extends Collection<? super O>>
  R`
  CollectionUtils.`select(Iterable<? extends O> inputCollection, Predicate<? super O> predicate, R outputCollection, R rejectedCollection)`
  Selects all elements from inputCollection into an output and rejected collection, based on the evaluation of the given predicate.
  `static <E> List<E>`
  ListUtils.`select(Collection<? extends E> inputCollection, Predicate<? super E> predicate)`
  Selects all elements from input collection which match the given predicate into an output list.
  `static <O> Collection<O>`
  CollectionUtils.`selectRejected(Iterable<? extends O> inputCollection, Predicate<? super O> predicate)`
  Selects all elements from inputCollection which don't match the given predicate into an output collection.
  `static <O, R extends Collection<? super O>>
  R`
  CollectionUtils.`selectRejected(Iterable<? extends O> inputCollection, Predicate<? super O> predicate, R outputCollection)`
  Selects all elements from inputCollection which don't match the given predicate and adds them to outputCollection.
  `static <E> List<E>`
  ListUtils.`selectRejected(Collection<? extends E> inputCollection, Predicate<? super E> predicate)`
  Selects all elements from inputCollection which don't match the given predicate into an output collection.
  `static <O> Collection<O>`
  CollectionUtils.`subtract(Iterable<? extends O> a, Iterable<? extends O> b, Predicate<O> p)`
  Returns a new `Collection` containing a minus a subset of b.
  `static <E> Closure<E>`
  ClosureUtils.`switchClosure(Predicate<? super E>[] predicates, Closure<? super E>[] closures)`
  Create a new Closure that calls one of the closures depending on the predicates.
  `static <E> Closure<E>`
  ClosureUtils.`switchClosure(Predicate<? super E>[] predicates, Closure<? super E>[] closures, Closure<? super E> defaultClosure)`
  Create a new Closure that calls one of the closures depending on the predicates.
  `static <I, O> Transformer<I,O>`
  TransformerUtils.`switchTransformer(Predicate<? super I>[] predicates, Transformer<? super I,? extends O>[] transformers)`
  Create a new Transformer that calls one of the transformers depending on the predicates.
  `static <I, O> Transformer<I,O>`
  TransformerUtils.`switchTransformer(Predicate<? super I>[] predicates, Transformer<? super I,? extends O>[] transformers, Transformer<? super I,? extends O> defaultTransformer)`
  Create a new Transformer that calls one of the transformers depending on the predicates.
  `static <I, O> Transformer<I,O>`
  TransformerUtils.`switchTransformer(Predicate<? super I> predicate, Transformer<? super I,? extends O> trueTransformer, Transformer<? super I,? extends O> falseTransformer)`
  Deprecated.
  as of 4.1, use `TransformerUtils.ifTransformer(Predicate, Transformer, Transformer)`
  `static <T> Predicate<T>`
  PredicateUtils.`transformedPredicate(Transformer<? super T,? extends T> transformer, Predicate<? super T> predicate)`
  Creates a predicate that transforms the input object before passing it to the predicate.
  `static <E> Closure<E>`
  ClosureUtils.`whileClosure(Predicate<? super E> predicate, Closure<? super E> closure)`
  Creates a Closure that will call the closure repeatedly until the predicate returns false.
  Method parameters in org.apache.commons.collections4 with type arguments of type Predicate
  Modifier and Type
  Method
  Description
  `static <T> Predicate<T>`
  PredicateUtils.`allPredicate(Collection<? extends Predicate<? super T>> predicates)`
  Create a new Predicate that returns true only if all of the specified predicates are true.
  `static <T> Predicate<T>`
  PredicateUtils.`anyPredicate(Collection<? extends Predicate<? super T>> predicates)`
  Create a new Predicate that returns true if any of the specified predicates are true.
  `static <T> Predicate<T>`
  PredicateUtils.`nonePredicate(Collection<? extends Predicate<? super T>> predicates)`
  Create a new Predicate that returns true if none of the specified predicates are true.
  `static <T> Predicate<T>`
  PredicateUtils.`onePredicate(Collection<? extends Predicate<? super T>> predicates)`
  Create a new Predicate that returns true if only one of the specified predicates are true.
  `static <E> Closure<E>`
  ClosureUtils.`switchClosure(Map<Predicate<E>,Closure<E>> predicatesAndClosures)`
  Create a new Closure that calls one of the closures depending on the predicates.
  `static <I, O> Transformer<I,O>`
  TransformerUtils.`switchTransformer(Map<Predicate<I>,Transformer<I,O>> predicatesAndTransformers)`
  Create a new Transformer that calls one of the transformers depending on the predicates.

- ## Uses of Predicate in org.apache.commons.collections4.bag

  Methods in org.apache.commons.collections4.bag with parameters of type Predicate
  Modifier and Type
  Method
  Description
  `static <E> PredicatedBag<E>`
  PredicatedBag.`predicatedBag(Bag<E> bag, Predicate<? super E> predicate)`
  Factory method to create a predicated (validating) bag.
  `static <E> PredicatedSortedBag<E>`
  PredicatedSortedBag.`predicatedSortedBag(SortedBag<E> bag, Predicate<? super E> predicate)`
  Factory method to create a predicated (validating) bag.
  Constructors in org.apache.commons.collections4.bag with parameters of type Predicate
  Modifier
  Constructor
  Description
  `protected`
  `PredicatedBag(Bag<E> bag, Predicate<? super E> predicate)`
  Constructor that wraps (not copies).
  `protected`
  `PredicatedSortedBag(SortedBag<E> bag, Predicate<? super E> predicate)`
  Constructor that wraps (not copies).

- ## Uses of Predicate in org.apache.commons.collections4.collection

  Fields in org.apache.commons.collections4.collection declared as Predicate
  Modifier and Type
  Field
  Description
  `protected final Predicate<? super E>`
  PredicatedCollection.`predicate`
  The predicate to use
  Methods in org.apache.commons.collections4.collection with parameters of type Predicate
  Modifier and Type
  Method
  Description
  `static <E> PredicatedCollection.Builder<E>`
  PredicatedCollection.`builder(Predicate<? super E> predicate)`
  Returns a Builder with the given predicate.
  `static <T> PredicatedCollection<T>`
  PredicatedCollection.`predicatedCollection(Collection<T> coll, Predicate<? super T> predicate)`
  Factory method to create a predicated (validating) collection.
  Constructors in org.apache.commons.collections4.collection with parameters of type Predicate
  Modifier
  Constructor
  Description
  ``
  `Builder(Predicate<? super E> predicate)`
  Constructs a PredicatedCollectionBuilder with the specified Predicate.
  `protected`
  `PredicatedCollection(Collection<E> collection, Predicate<? super E> predicate)`
  Constructor that wraps (not copies).

- ## Uses of Predicate in org.apache.commons.collections4.functors

  Subinterfaces of Predicate in org.apache.commons.collections4.functors
  Modifier and Type
  Interface
  Description
  `interface`
  `PredicateDecorator<T>`
  Defines a predicate that decorates one or more other predicates.
  Classes in org.apache.commons.collections4.functors that implement Predicate
  Modifier and Type
  Class
  Description
  `class`
  `AbstractQuantifierPredicate<T>`
  Abstract base class for quantification predicates, e.g.
  `final class`
  `AllPredicate<T>`
  Predicate implementation that returns true if all the predicates return true.
  `final class`
  `AndPredicate<T>`
  Predicate implementation that returns true if both the predicates return true.
  `final class`
  `AnyPredicate<T>`
  Predicate implementation that returns true if any of the predicates return true.
  `class`
  `ComparatorPredicate<T>`
  Predicate that compares the input object with the one stored in the predicate using a comparator.
  `final class`
  `EqualPredicate<T>`
  Predicate implementation that returns true if the input is the same object as the one stored in this predicate by equals.
  `final class`
  `ExceptionPredicate<T>`
  Predicate implementation that always throws an exception.
  `final class`
  `FalsePredicate<T>`
  Predicate implementation that always returns false.
  `final class`
  `IdentityPredicate<T>`
  Predicate implementation that returns true if the input is the same object as the one stored in this predicate.
  `final class`
  `InstanceofPredicate`
  Predicate implementation that returns true if the input is an instanceof the type stored in this predicate.
  `final class`
  `NonePredicate<T>`
  Predicate implementation that returns true if none of the predicates return true.
  `final class`
  `NotNullPredicate<T>`
  Predicate implementation that returns true if the input is not null.
  `final class`
  `NotPredicate<T>`
  Predicate implementation that returns the opposite of the decorated predicate.
  `final class`
  `NullIsExceptionPredicate<T>`
  Predicate implementation that throws an exception if the input is null.
  `final class`
  `NullIsFalsePredicate<T>`
  Predicate implementation that returns false if the input is null.
  `final class`
  `NullIsTruePredicate<T>`
  Predicate implementation that returns true if the input is null.
  `final class`
  `NullPredicate<T>`
  Predicate implementation that returns true if the input is null.
  `final class`
  `OnePredicate<T>`
  Predicate implementation that returns true if only one of the predicates return true.
  `final class`
  `OrPredicate<T>`
  Predicate implementation that returns true if either of the predicates return true.
  `final class`
  `TransformedPredicate<T>`
  Predicate implementation that transforms the given object before invoking another `Predicate`.
  `final class`
  `TransformerPredicate<T>`
  Predicate implementation that returns the result of a transformer.
  `final class`
  `TruePredicate<T>`
  Predicate implementation that always returns true.
  `final class`
  `UniquePredicate<T>`
  Predicate implementation that returns true the first time an object is passed into the predicate.
  Fields in org.apache.commons.collections4.functors declared as Predicate
  Modifier and Type
  Field
  Description
  `static final Predicate`
  ExceptionPredicate.`INSTANCE`
  Singleton predicate instance
  `static final Predicate`
  FalsePredicate.`INSTANCE`
  Singleton predicate instance
  `static final Predicate`
  NotNullPredicate.`INSTANCE`
  Singleton predicate instance
  `static final Predicate`
  NullPredicate.`INSTANCE`
  Singleton predicate instance
  `static final Predicate`
  TruePredicate.`INSTANCE`
  Singleton predicate instance
  `protected final Predicate<? super T>[]`
  AbstractQuantifierPredicate.`iPredicates`
  The array of predicates to call
  Methods in org.apache.commons.collections4.functors that return Predicate
  Modifier and Type
  Method
  Description
  `static <T> Predicate<T>`
  AllPredicate.`allPredicate(Collection<? extends Predicate<? super T>> predicates)`
  Factory to create the predicate.
  `static <T> Predicate<T>`
  AllPredicate.`allPredicate(Predicate<? super T>... predicates)`
  Factory to create the predicate.
  `static <T> Predicate<T>`
  AndPredicate.`andPredicate(Predicate<? super T> predicate1, Predicate<? super T> predicate2)`
  Factory to create the predicate.
  `static <T> Predicate<T>`
  AnyPredicate.`anyPredicate(Collection<? extends Predicate<? super T>> predicates)`
  Factory to create the predicate.
  `static <T> Predicate<T>`
  AnyPredicate.`anyPredicate(Predicate<? super T>... predicates)`
  Factory to create the predicate.
  `static <T> Predicate<T>`
  ComparatorPredicate.`comparatorPredicate(T object, Comparator<T> comparator)`
  Factory to create the comparator predicate
  `static <T> Predicate<T>`
  ComparatorPredicate.`comparatorPredicate(T object, Comparator<T> comparator, ComparatorPredicate.Criterion criterion)`
  Factory to create the comparator predicate
  `static <T> Predicate<T>`
  EqualPredicate.`equalPredicate(T object)`
  Factory to create the predicate.
  `static <T> Predicate<T>`
  EqualPredicate.`equalPredicate(T object, Equator<T> equator)`
  Factory to create the identity predicate.
  `static <T> Predicate<T>`
  ExceptionPredicate.`exceptionPredicate()`
  Factory returning the singleton instance.
  `static <T> Predicate<T>`
  FalsePredicate.`falsePredicate()`
  Gets a typed instance.
  `Predicate<? super E>`
  IfClosure.`getPredicate()`
  Gets the predicate.
  `Predicate<? super I>`
  IfTransformer.`getPredicate()`
  Gets the predicate.
  `Predicate<? super T>`
  PredicateTransformer.`getPredicate()`
  Gets the predicate.
  `Predicate<? super E>`
  WhileClosure.`getPredicate()`
  Gets the predicate in use.
  `Predicate<? super T>[]`
  AbstractQuantifierPredicate.`getPredicates()`
  Gets the predicates.
  `Predicate<? super T>[]`
  AndPredicate.`getPredicates()`
  Gets the two predicates being decorated as an array.
  `Predicate<? super T>[]`
  NotPredicate.`getPredicates()`
  Gets the predicate being decorated.
  `Predicate<? super T>[]`
  NullIsExceptionPredicate.`getPredicates()`
  Gets the predicate being decorated.
  `Predicate<? super T>[]`
  NullIsFalsePredicate.`getPredicates()`
  Gets the predicate being decorated.
  `Predicate<? super T>[]`
  NullIsTruePredicate.`getPredicates()`
  Gets the predicate being decorated.
  `Predicate<? super T>[]`
  OrPredicate.`getPredicates()`
  Gets the two predicates being decorated as an array.
  `Predicate<? super T>[]`
  PredicateDecorator.`getPredicates()`
  Gets the predicates being decorated as an array.
  `Predicate<? super E>[]`
  SwitchClosure.`getPredicates()`
  Gets the predicates.
  `Predicate<? super I>[]`
  SwitchTransformer.`getPredicates()`
  Gets the predicates.
  `Predicate<? super T>[]`
  TransformedPredicate.`getPredicates()`
  Gets the predicate being decorated.
  `static <T> Predicate<T>`
  IdentityPredicate.`identityPredicate(T object)`
  Factory to create the identity predicate.
  `static Predicate<Object>`
  InstanceofPredicate.`instanceOfPredicate(Class<?> type)`
  Factory to create the identity predicate.
  `static <T> Predicate<T>`
  NonePredicate.`nonePredicate(Collection<? extends Predicate<? super T>> predicates)`
  Factory to create the predicate.
  `static <T> Predicate<T>`
  NonePredicate.`nonePredicate(Predicate<? super T>... predicates)`
  Factory to create the predicate.
  `static <T> Predicate<T>`
  NotNullPredicate.`notNullPredicate()`
  Factory returning the singleton instance.
  `static <T> Predicate<T>`
  NotPredicate.`notPredicate(Predicate<? super T> predicate)`
  Factory to create the not predicate.
  `static <T> Predicate<T>`
  NullIsExceptionPredicate.`nullIsExceptionPredicate(Predicate<? super T> predicate)`
  Factory to create the null exception predicate.
  `static <T> Predicate<T>`
  NullIsFalsePredicate.`nullIsFalsePredicate(Predicate<? super T> predicate)`
  Factory to create the null false predicate.
  `static <T> Predicate<T>`
  NullIsTruePredicate.`nullIsTruePredicate(Predicate<? super T> predicate)`
  Factory to create the null true predicate.
  `static <T> Predicate<T>`
  NullPredicate.`nullPredicate()`
  Factory returning the singleton instance.
  `static <T> Predicate<T>`
  OnePredicate.`onePredicate(Collection<? extends Predicate<? super T>> predicates)`
  Factory to create the predicate.
  `static <T> Predicate<T>`
  OnePredicate.`onePredicate(Predicate<? super T>... predicates)`
  Factory to create the predicate.
  `static <T> Predicate<T>`
  OrPredicate.`orPredicate(Predicate<? super T> predicate1, Predicate<? super T> predicate2)`
  Factory to create the predicate.
  `static <T> Predicate<T>`
  TransformedPredicate.`transformedPredicate(Transformer<? super T,? extends T> transformer, Predicate<? super T> predicate)`
  Factory to create the predicate.
  `static <T> Predicate<T>`
  TransformerPredicate.`transformerPredicate(Transformer<? super T,Boolean> transformer)`
  Factory to create the predicate.
  `static <T> Predicate<T>`
  TruePredicate.`truePredicate()`
  Factory returning the singleton instance.
  `static <T> Predicate<T>`
  UniquePredicate.`uniquePredicate()`
  Factory to create the predicate.
  Methods in org.apache.commons.collections4.functors with parameters of type Predicate
  Modifier and Type
  Method
  Description
  `static <T> Predicate<T>`
  AllPredicate.`allPredicate(Predicate<? super T>... predicates)`
  Factory to create the predicate.
  `static <T> Predicate<T>`
  AndPredicate.`andPredicate(Predicate<? super T> predicate1, Predicate<? super T> predicate2)`
  Factory to create the predicate.
  `static <T> Predicate<T>`
  AnyPredicate.`anyPredicate(Predicate<? super T>... predicates)`
  Factory to create the predicate.
  `static <E> Closure<E>`
  IfClosure.`ifClosure(Predicate<? super E> predicate, Closure<? super E> trueClosure)`
  Factory method that performs validation.
  `static <E> Closure<E>`
  IfClosure.`ifClosure(Predicate<? super E> predicate, Closure<? super E> trueClosure, Closure<? super E> falseClosure)`
  Factory method that performs validation.
  `static <I, O> Transformer<I,O>`
  IfTransformer.`ifTransformer(Predicate<? super I> predicate, Transformer<? super I,? extends O> trueTransformer, Transformer<? super I,? extends O> falseTransformer)`
  Factory method that performs validation.
  `static <T> Transformer<T,T>`
  IfTransformer.`ifTransformer(Predicate<? super T> predicate, Transformer<? super T,? extends T> trueTransformer)`
  Factory method that performs validation.
  `static <T> Predicate<T>`
  NonePredicate.`nonePredicate(Predicate<? super T>... predicates)`
  Factory to create the predicate.
  `static <T> Predicate<T>`
  NotPredicate.`notPredicate(Predicate<? super T> predicate)`
  Factory to create the not predicate.
  `static <T> Predicate<T>`
  NullIsExceptionPredicate.`nullIsExceptionPredicate(Predicate<? super T> predicate)`
  Factory to create the null exception predicate.
  `static <T> Predicate<T>`
  NullIsFalsePredicate.`nullIsFalsePredicate(Predicate<? super T> predicate)`
  Factory to create the null false predicate.
  `static <T> Predicate<T>`
  NullIsTruePredicate.`nullIsTruePredicate(Predicate<? super T> predicate)`
  Factory to create the null true predicate.
  `static <T> Predicate<T>`
  OnePredicate.`onePredicate(Predicate<? super T>... predicates)`
  Factory to create the predicate.
  `static <T> Predicate<T>`
  OrPredicate.`orPredicate(Predicate<? super T> predicate1, Predicate<? super T> predicate2)`
  Factory to create the predicate.
  `static <T> Transformer<T,Boolean>`
  PredicateTransformer.`predicateTransformer(Predicate<? super T> predicate)`
  Factory method that performs validation.
  `static <E> Closure<E>`
  SwitchClosure.`switchClosure(Predicate<? super E>[] predicates, Closure<? super E>[] closures, Closure<? super E> defaultClosure)`
  Factory method that performs validation and copies the parameter arrays.
  `static <I, O> Transformer<I,O>`
  SwitchTransformer.`switchTransformer(Predicate<? super I>[] predicates, Transformer<? super I,? extends O>[] transformers, Transformer<? super I,? extends O> defaultTransformer)`
  Factory method that performs validation and copies the parameter arrays.
  `static <T> Predicate<T>`
  TransformedPredicate.`transformedPredicate(Transformer<? super T,? extends T> transformer, Predicate<? super T> predicate)`
  Factory to create the predicate.
  `static <E> Closure<E>`
  WhileClosure.`whileClosure(Predicate<? super E> predicate, Closure<? super E> closure, boolean doLoop)`
  Factory method that performs validation.
  Method parameters in org.apache.commons.collections4.functors with type arguments of type Predicate
  Modifier and Type
  Method
  Description
  `static <T> Predicate<T>`
  AllPredicate.`allPredicate(Collection<? extends Predicate<? super T>> predicates)`
  Factory to create the predicate.
  `static <T> Predicate<T>`
  AnyPredicate.`anyPredicate(Collection<? extends Predicate<? super T>> predicates)`
  Factory to create the predicate.
  `static <T> Predicate<T>`
  NonePredicate.`nonePredicate(Collection<? extends Predicate<? super T>> predicates)`
  Factory to create the predicate.
  `static <T> Predicate<T>`
  OnePredicate.`onePredicate(Collection<? extends Predicate<? super T>> predicates)`
  Factory to create the predicate.
  `static <E> Closure<E>`
  SwitchClosure.`switchClosure(Map<Predicate<E>,Closure<E>> predicatesAndClosures)`
  Create a new Closure that calls one of the closures depending on the predicates.
  `static <I, O> Transformer<I,O>`
  SwitchTransformer.`switchTransformer(Map<? extends Predicate<? super I>,? extends Transformer<? super I,? extends O>> map)`
  Create a new Transformer that calls one of the transformers depending on the predicates.
  Constructors in org.apache.commons.collections4.functors with parameters of type Predicate
  Modifier
  Constructor
  Description
  ``
  `AbstractQuantifierPredicate(Predicate<? super T>... predicates)`
  Constructor that performs no validation.
  ``
  `AllPredicate(Predicate<? super T>... predicates)`
  Constructor that performs no validation.
  ``
  `AndPredicate(Predicate<? super T> predicate1, Predicate<? super T> predicate2)`
  Constructor that performs no validation.
  ``
  `AnyPredicate(Predicate<? super T>... predicates)`
  Constructor that performs no validation.
  ``
  `IfClosure(Predicate<? super E> predicate, Closure<? super E> trueClosure)`
  Constructor that performs no validation.
  ``
  `IfClosure(Predicate<? super E> predicate, Closure<? super E> trueClosure, Closure<? super E> falseClosure)`
  Constructor that performs no validation.
  ``
  `IfTransformer(Predicate<? super I> predicate, Transformer<? super I,? extends O> trueTransformer, Transformer<? super I,? extends O> falseTransformer)`
  Constructor that performs no validation.
  ``
  `NonePredicate(Predicate<? super T>... predicates)`
  Constructor that performs no validation.
  ``
  `NotPredicate(Predicate<? super T> predicate)`
  Constructor that performs no validation.
  ``
  `NullIsExceptionPredicate(Predicate<? super T> predicate)`
  Constructor that performs no validation.
  ``
  `NullIsFalsePredicate(Predicate<? super T> predicate)`
  Constructor that performs no validation.
  ``
  `NullIsTruePredicate(Predicate<? super T> predicate)`
  Constructor that performs no validation.
  ``
  `OnePredicate(Predicate<? super T>... predicates)`
  Constructor that performs no validation.
  ``
  `OrPredicate(Predicate<? super T> predicate1, Predicate<? super T> predicate2)`
  Constructor that performs no validation.
  ``
  `PredicateTransformer(Predicate<? super T> predicate)`
  Constructor that performs no validation.
  ``
  `SwitchClosure(Predicate<? super E>[] predicates, Closure<? super E>[] closures, Closure<? super E> defaultClosure)`
  Constructor that performs no validation.
  ``
  `SwitchTransformer(Predicate<? super I>[] predicates, Transformer<? super I,? extends O>[] transformers, Transformer<? super I,? extends O> defaultTransformer)`
  Constructor that performs no validation.
  ``
  `TransformedPredicate(Transformer<? super T,? extends T> transformer, Predicate<? super T> predicate)`
  Constructor that performs no validation.
  ``
  `WhileClosure(Predicate<? super E> predicate, Closure<? super E> closure, boolean doLoop)`
  Constructor that performs no validation.

- ## Uses of Predicate in org.apache.commons.collections4.iterators

  Methods in org.apache.commons.collections4.iterators that return Predicate
  Modifier and Type
  Method
  Description
  `Predicate<? super E>`
  FilterIterator.`getPredicate()`
  Gets the predicate this iterator is using.
  `Predicate<? super E>`
  FilterListIterator.`getPredicate()`
  Gets the predicate this iterator is using.
  Methods in org.apache.commons.collections4.iterators with parameters of type Predicate
  Modifier and Type
  Method
  Description
  `void`
  FilterIterator.`setPredicate(Predicate<? super E> predicate)`
  Sets the predicate this the iterator to use.
  `void`
  FilterListIterator.`setPredicate(Predicate<? super E> predicate)`
  Sets the predicate this the iterator to use.
  Constructors in org.apache.commons.collections4.iterators with parameters of type Predicate
  Modifier
  Constructor
  Description
  ``
  `FilterIterator(Iterator<? extends E> iterator, Predicate<? super E> predicate)`
  Constructs a new `FilterIterator` that will use the given iterator and predicate.
  ``
  `FilterListIterator(ListIterator<? extends E> iterator, Predicate<? super E> predicate)`
  Constructs a new `FilterListIterator`.
  ``
  `FilterListIterator(Predicate<? super E> predicate)`
  Constructs a new `FilterListIterator` that will not function until `setListIterator` is invoked.

- ## Uses of Predicate in org.apache.commons.collections4.list

  Methods in org.apache.commons.collections4.list with parameters of type Predicate
  Modifier and Type
  Method
  Description
  `static <T> PredicatedList<T>`
  PredicatedList.`predicatedList(List<T> list, Predicate<? super T> predicate)`
  Factory method to create a predicated (validating) list.
  Constructors in org.apache.commons.collections4.list with parameters of type Predicate
  Modifier
  Constructor
  Description
  `protected`
  `PredicatedList(List<E> list, Predicate<? super E> predicate)`
  Constructor that wraps (not copies).

- ## Uses of Predicate in org.apache.commons.collections4.map

  Fields in org.apache.commons.collections4.map declared as Predicate
  Modifier and Type
  Field
  Description
  `protected final Predicate<? super K>`
  PredicatedMap.`keyPredicate`
  The key predicate to use
  `protected final Predicate<? super V>`
  PredicatedMap.`valuePredicate`
  The value predicate to use
  Methods in org.apache.commons.collections4.map with parameters of type Predicate
  Modifier and Type
  Method
  Description
  `static <K, V> PredicatedMap<K,V>`
  PredicatedMap.`predicatedMap(Map<K,V> map, Predicate<? super K> keyPredicate, Predicate<? super V> valuePredicate)`
  Factory method to create a predicated (validating) map.
  `static <K, V> PredicatedSortedMap<K,V>`
  PredicatedSortedMap.`predicatedSortedMap(SortedMap<K,V> map, Predicate<? super K> keyPredicate, Predicate<? super V> valuePredicate)`
  Factory method to create a predicated (validating) sorted map.
  Constructors in org.apache.commons.collections4.map with parameters of type Predicate
  Modifier
  Constructor
  Description
  `protected`
  `PredicatedMap(Map<K,V> map, Predicate<? super K> keyPredicate, Predicate<? super V> valuePredicate)`
  Constructor that wraps (not copies).
  `protected`
  `PredicatedSortedMap(SortedMap<K,V> map, Predicate<? super K> keyPredicate, Predicate<? super V> valuePredicate)`
  Constructor that wraps (not copies).

- ## Uses of Predicate in org.apache.commons.collections4.multiset

  Methods in org.apache.commons.collections4.multiset with parameters of type Predicate
  Modifier and Type
  Method
  Description
  `static <E> PredicatedMultiSet<E>`
  PredicatedMultiSet.`predicatedMultiSet(MultiSet<E> multiset, Predicate<? super E> predicate)`
  Factory method to create a predicated (validating) multiset.
  Constructors in org.apache.commons.collections4.multiset with parameters of type Predicate
  Modifier
  Constructor
  Description
  `protected`
  `PredicatedMultiSet(MultiSet<E> multiset, Predicate<? super E> predicate)`
  Constructor that wraps (not copies).

- ## Uses of Predicate in org.apache.commons.collections4.queue

  Methods in org.apache.commons.collections4.queue with parameters of type Predicate
  Modifier and Type
  Method
  Description
  `static <E> PredicatedQueue<E>`
  PredicatedQueue.`predicatedQueue(Queue<E> Queue, Predicate<? super E> predicate)`
  Factory method to create a predicated (validating) queue.
  Constructors in org.apache.commons.collections4.queue with parameters of type Predicate
  Modifier
  Constructor
  Description
  `protected`
  `PredicatedQueue(Queue<E> queue, Predicate<? super E> predicate)`
  Constructor that wraps (not copies).

- ## Uses of Predicate in org.apache.commons.collections4.set

  Methods in org.apache.commons.collections4.set with parameters of type Predicate
  Modifier and Type
  Method
  Description
  `static <E> PredicatedNavigableSet<E>`
  PredicatedNavigableSet.`predicatedNavigableSet(NavigableSet<E> set, Predicate<? super E> predicate)`
  Factory method to create a predicated (validating) navigable set.
  `static <E> PredicatedSet<E>`
  PredicatedSet.`predicatedSet(Set<E> set, Predicate<? super E> predicate)`
  Factory method to create a predicated (validating) set.
  `static <E> PredicatedSortedSet<E>`
  PredicatedSortedSet.`predicatedSortedSet(SortedSet<E> set, Predicate<? super E> predicate)`
  Factory method to create a predicated (validating) sorted set.
  Constructors in org.apache.commons.collections4.set with parameters of type Predicate
  Modifier
  Constructor
  Description
  `protected`
  `PredicatedNavigableSet(NavigableSet<E> set, Predicate<? super E> predicate)`
  Constructor that wraps (not copies).
  `protected`
  `PredicatedSet(Set<E> set, Predicate<? super E> predicate)`
  Constructor that wraps (not copies).
  `protected`
  `PredicatedSortedSet(SortedSet<E> set, Predicate<? super E> predicate)`
  Constructor that wraps (not copies).