Constructor Detail

• CollectionFunctionals

  public CollectionFunctionals()

Method Detail

• sizeSupplier

  public static com.google.common.base.Supplier<java.lang.Integer> sizeSupplier(java.lang.Iterable<?> collection)

• sizeFunction

  public static com.google.common.base.Function<java.lang.Iterable<?>,java.lang.Integer> sizeFunction()

• sizeFunction

  public static com.google.common.base.Function<java.lang.Iterable<?>,java.lang.Integer> sizeFunction(java.lang.Integer valueIfInputNull)

• firstElement

  public static <T> com.google.common.base.Function<java.lang.Iterable<? extends T>,T> firstElement()

• keys

  public static <K> com.google.common.base.Function<java.util.Map<K,?>,java.util.Set<K>> keys()

• mapSize

  public static <K> com.google.common.base.Function<java.util.Map<K,?>,java.lang.Integer> mapSize()

• mapSize

  public static <K> com.google.common.base.Function<java.util.Map<K,?>,java.lang.Integer> mapSize(java.lang.Integer valueIfNull)

• equalsSetOf

  public static com.google.common.base.Predicate<java.lang.Iterable<?>> equalsSetOf(java.lang.Object... target)

  default guava Equals predicate will reflect order of target, and will fail when matching against a list; this treats them both as sets

• equalsSet

  public static com.google.common.base.Predicate<java.lang.Iterable<?>> equalsSet(java.lang.Iterable<?> target)

• sizeEquals

  public static com.google.common.base.Predicate<java.lang.Iterable<?>> sizeEquals(int targetSize)

• empty

  public static com.google.common.base.Predicate<java.lang.Iterable<?>> empty()

• notEmpty

  public static com.google.common.base.Predicate<java.lang.Iterable<?>> notEmpty()

• mapSizeEquals

  public static <K> com.google.common.base.Predicate<java.util.Map<K,?>> mapSizeEquals(int targetSize)

• limit

  public static <T,I extends java.lang.Iterable<T>> com.google.common.base.Function<I,java.util.List<T>> limit(int max)

• contains

  public static <I,T extends java.util.Collection<I>> com.google.common.base.Predicate<T> contains(I item)

• all

  public static <T,TT extends java.lang.Iterable<T>> com.google.common.base.Predicate<TT> all(com.google.common.base.Predicate<T> attributeSatisfies)

  Returns a predicate for a collection which is true if all elements in the collection given to the predicate which satisfies the predicate given here.

  This will return true for the empty set. To require additionally that there is at least one use quorum(QuorumCheck, Predicate) with QuorumCheck.QuorumChecks.allAndAtLeastOne().

• any

  public static <T,TT extends java.lang.Iterable<T>> com.google.common.base.Predicate<TT> any(com.google.common.base.Predicate<T> attributeSatisfies)

  Returns a predicate for a collection which is true if there is at least one element in the collection given to the predicate which satisfies the predicate given here.

• quorum

  public static <T,TT extends java.lang.Iterable<T>> com.google.common.base.Predicate<TT> quorum(QuorumCheck quorumCheck,
                                                                                 com.google.common.base.Predicate<T> attributeSatisfies)

  Returns a predicate for a collection which is true if the number of elements in the collection satisfying the predicate given here passes the QuorumCheck given here.