Constructor Detail

• CollectionUtils

  public CollectionUtils()

  Deprecated.

Method Detail

• findSingle

  @Nullable
  public static <T> T findSingle​(java.lang.Iterable<T> source)

  Deprecated.
  Returns null if the collection is empty otherwise expects a single(Iterable) element to be found.

• single

  public static <T> T single​(java.lang.Iterable<? extends T> source)

  Deprecated.
  Returns the single element in the collection or throws.

• checkedCast

  public static <T> java.util.Collection<? extends T> checkedCast​(java.lang.Class<T> type,
                                                                  java.util.Collection<?> input)

  Deprecated.

• findFirst

  @Nullable
  public static <T> T findFirst​(java.lang.Iterable<? extends T> source,
                                Spec<? super T> filter)

  Deprecated.

• findFirst

  @Nullable
  public static <T> T findFirst​(T[] source,
                                Spec<? super T> filter)

  Deprecated.

• first

  public static <T> T first​(java.lang.Iterable<? extends T> source)

  Deprecated.

• any

  public static <T> boolean any​(java.lang.Iterable<? extends T> source,
                                Spec<? super T> filter)

  Deprecated.

• any

  public static <T> boolean any​(T[] source,
                                Spec<? super T> filter)

  Deprecated.

• filter

  public static <T> java.util.Set<T> filter​(java.util.Set<? extends T> set,
                                            Spec<? super T> filter)

  Deprecated.

• filter

  public static <T> java.util.List<T> filter​(java.util.List<? extends T> list,
                                             Spec<? super T> filter)

  Deprecated.

• filter

  public static <T> java.util.List<T> filter​(T[] array,
                                             Spec<? super T> filter)

  Deprecated.

• sort

  public static <T> java.util.List<T> sort​(java.lang.Iterable<? extends T> things,
                                           java.util.Comparator<? super T> comparator)

  Deprecated.
  Returns a sorted copy of the provided collection of things. Uses the provided comparator to sort.

• sort

  public static <T extends java.lang.Comparable<T>> java.util.List<T> sort​(java.lang.Iterable<T> things)

  Deprecated.
  Returns a sorted copy of the provided collection of things. Uses the natural ordering of the things.

• filter

  public static <T,​C extends java.util.Collection<T>> C filter​(java.lang.Iterable<? extends T> source,
                                                                     C destination,
                                                                     Spec<? super T> filter)

  Deprecated.

• filter

  public static <K,​V> java.util.Map<K,​V> filter​(java.util.Map<K,​V> map,
                                                            Spec<java.util.Map.Entry<K,​V>> filter)

  Deprecated.

• filter

  public static <K,​V> java.util.Map<K,​V> filter​(java.util.Map<K,​V> map,
                                                            java.util.Map<K,​V> destination,
                                                            Spec<java.util.Map.Entry<K,​V>> filter)

  Deprecated.

• collectArray

  public static <R,​I> R[] collectArray​(I[] list,
                                             java.lang.Class<R> newType,
                                             Transformer<? extends R,​? super I> transformer)

  Deprecated.

• collectArray

  public static <R,​I> R[] collectArray​(I[] list,
                                             R[] destination,
                                             Transformer<? extends R,​? super I> transformer)

  Deprecated.

• collect

  public static <R,​I> java.util.List<R> collect​(I[] list,
                                                      Transformer<? extends R,​? super I> transformer)

  Deprecated.

• collect

  public static <R,​I> java.util.Set<R> collect​(java.util.Set<? extends I> set,
                                                     Transformer<? extends R,​? super I> transformer)

  Deprecated.

• collect

  public static <R,​I> java.util.List<R> collect​(java.lang.Iterable<? extends I> source,
                                                      Transformer<? extends R,​? super I> transformer)

  Deprecated.

• collect

  public static <R,​I,​C extends java.util.Collection<R>> C collect​(java.lang.Iterable<? extends I> source,
                                                                              C destination,
                                                                              Transformer<? extends R,​? super I> transformer)

  Deprecated.

• toStringList

  public static java.util.List<java.lang.String> toStringList​(java.lang.Iterable<?> iterable)

  Deprecated.

• flattenCollections

  public static java.util.List<?> flattenCollections​(java.lang.Object... things)

  Deprecated.
  Recursively unpacks all the given things into a flat list. Nulls are not removed, they are left intact.

  Parameters:

  things - The things to flatten

  Returns:

  A flattened list of the given things

• flattenCollections

  public static <T> java.util.List<T> flattenCollections​(java.lang.Class<T> type,
                                                         java.lang.Object... things)

  Deprecated.
  Recursively unpacks all the given things into a flat list, ensuring they are of a certain type. Nulls are not removed, they are left intact. If a non null object cannot be cast to the target type, a ClassCastException will be thrown.

  Type Parameters:

  T - The target type in the flattened list

  Parameters:

  things - The things to flatten

  Returns:

  A flattened list of the given things

• toList

  public static <T> java.util.List<T> toList​(java.lang.Iterable<? extends T> things)

  Deprecated.

• toList

  public static <T> java.util.List<T> toList​(java.util.Enumeration<? extends T> things)

  Deprecated.

• intersection

  public static <T> java.util.List<T> intersection​(java.util.Collection<? extends java.util.Collection<T>> availableValuesByDescriptor)

  Deprecated.

• toList

  public static <T> java.util.List<T> toList​(T[] things)

  Deprecated.

• toSet

  public static <T> java.util.Set<T> toSet​(java.lang.Iterable<? extends T> things)

  Deprecated.

• compact

  public static <E> java.util.List<E> compact​(java.util.List<E> list)

  Deprecated.

• stringize

  public static <C extends java.util.Collection<java.lang.String>> C stringize​(java.lang.Iterable<?> source,
                                                                               C destination)

  Deprecated.

• stringize

  public static java.util.List<java.lang.String> stringize​(java.util.Collection<?> source)

  Deprecated.

• replace

  public static <E> boolean replace​(java.util.List<E> list,
                                    Spec<? super E> filter,
                                    Transformer<? extends E,​? super E> transformer)

  Deprecated.

• collectMap

  public static <K,​V> void collectMap​(java.util.Map<K,​V> destination,
                                            java.lang.Iterable<? extends V> items,
                                            Transformer<? extends K,​? super V> keyGenerator)

  Deprecated.

• collectMap

  public static <K,​V> java.util.Map<K,​V> collectMap​(java.lang.Iterable<? extends V> items,
                                                                Transformer<? extends K,​? super V> keyGenerator)

  Deprecated.
  Given a set of values, derive a set of keys and return a map

• collectMapValues

  public static <K,​V> void collectMapValues​(java.util.Map<K,​V> destination,
                                                  java.lang.Iterable<? extends K> keys,
                                                  Transformer<? extends V,​? super K> keyGenerator)

  Deprecated.

• collectMapValues

  public static <K,​V> java.util.Map<K,​V> collectMapValues​(java.lang.Iterable<? extends K> keys,
                                                                      Transformer<? extends V,​? super K> keyGenerator)

  Deprecated.
  Given a set of keys, derive a set of values and return a map

• every

  public static <T> boolean every​(java.lang.Iterable<? extends T> things,
                                  Spec<? super T> predicate)

  Deprecated.

• addAll

  public static <T,​C extends java.util.Collection<? super T>> C addAll​(C t1,
                                                                             java.lang.Iterable<? extends T> t2)

  Deprecated.
  Utility for adding an iterable to a collection.

  Type Parameters:

  T - The element type of t1

  Parameters:

  t1 - The collection to add to

  t2 - The iterable to add each item of to the collection

  Returns:

  t1

• addAll

  public static <T,​C extends java.util.Collection<? super T>> C addAll​(C t1,
                                                                             T... t2)

  Deprecated.
  Utility for adding an array to a collection.

  Type Parameters:

  T - The element type of t1

  Parameters:

  t1 - The collection to add to

  t2 - The iterable to add each item of to the collection

  Returns:

  t1

• diffSetsBy

  public static <T> CollectionUtils.SetDiff<T> diffSetsBy​(java.util.Set<? extends T> left,
                                                          java.util.Set<? extends T> right,
                                                          Transformer<?,​T> compareBy)

  Deprecated.
  Provides a “diff report” of how the two sets are similar and how they are different, comparing the entries by some aspect. The transformer is used to generate the value to use to compare the entries by. That is, the entries are not compared by equals by an attribute or characteristic. The transformer is expected to produce a unique value for each entry in a single set. Behaviour is undefined if this condition is not met.

  Type Parameters:

  T - The type of the entry objects

  Parameters:

  left - The set on the “left” side of the comparison.

  right - The set on the “right” side of the comparison.

  compareBy - Provides the value to compare entries from either side by

  Returns:

  A representation of the difference

• join

  public static java.lang.String join​(java.lang.String separator,
                                      java.lang.Object[] objects)

  Deprecated.
  Creates a string with toString() of each object with the given separator.

   expect:
   join(",", new Object[]{"a"}) == "a"
   join(",", new Object[]{"a", "b", "c"}) == "a,b,c"
   join(",", new Object[]{}) == ""
   

  The separator must not be null and objects must not be null.

  Parameters:

  separator - The string by which to join each string representation

  objects - The objects to join the string representations of

  Returns:

  The joined string

• join

  public static java.lang.String join​(java.lang.String separator,
                                      java.lang.Iterable<?> objects)

  Deprecated.
  Creates a string with toString() of each object with the given separator.

   expect:
   join(",", ["a"]) == "a"
   join(",", ["a", "b", "c"]) == "a,b,c"
   join(",", []) == ""
   

  The separator must not be null and objects must not be null.

  Parameters:

  separator - The string by which to join each string representation

  objects - The objects to join the string representations of

  Returns:

  The joined string

• partition

  public static <T> org.gradle.internal.Pair<java.util.Collection<T>,​java.util.Collection<T>> partition​(java.lang.Iterable<T> items,
                                                                                                              Spec<? super T> predicate)

  Deprecated.
  Partition given Collection into a Pair of Collections.

  Left

  Collection containing entries that satisfy the given predicate

  Right

  Collection containing entries that do NOT satisfy the given predicate

• inject

  public static <T,​I> T inject​(T target,
                                     java.lang.Iterable<? extends I> items,
                                     Action<CollectionUtils.InjectionStep<T,​I>> action)

  Deprecated.

• groupBy

  public static <K,​V> java.util.Map<K,​java.util.Collection<V>> groupBy​(java.lang.Iterable<? extends V> iterable,
                                                                                   Transformer<? extends K,​V> grouper)

  Deprecated.

• unpack

  public static <T> java.lang.Iterable<? extends T> unpack​(java.lang.Iterable<? extends org.gradle.internal.Factory<? extends T>> factories)

  Deprecated.

• nonEmptyOrNull

  @Nullable
  public static <T> java.util.List<T> nonEmptyOrNull​(java.lang.Iterable<T> iterable)

  Deprecated.

• asCommandLine

  public static java.lang.String asCommandLine​(java.lang.Iterable<java.lang.String> arguments)

  Deprecated.