Class ImmutableDoubletonList<T>

All Implemented Interfaces:
Serializable, Iterable<T>, Collection<T>, List<T>, RandomAccess, SequencedCollection<T>, ImmutableCollection<T>, InternalIterable<T>, ImmutableList<T>, ListIterable<T>, OrderedIterable<T>, ReversibleIterable<T>, RichIterable<T>

final class ImmutableDoubletonList<T> extends AbstractImmutableList<T> implements Serializable, RandomAccess
This is a two element immutable List which is created by calling Immutable.newListWith(one, two) method.
  • Field Details

    • serialVersionUID

      private static final long serialVersionUID
      See Also:
    • element1

      private final T element1
    • element2

      private final T element2
  • Constructor Details

    • ImmutableDoubletonList

      ImmutableDoubletonList(T obj1, T obj2)
  • Method Details

    • getFirst

      public T getFirst()
      Description copied from interface: RichIterable
      Returns the first element of an iterable. In the case of a List it is the element at the first index. In the case of any other Collection, it is the first element that would be returned during an iteration. If the iterable is empty, null is returned. If null is a valid element of the container, then a developer would need to check to see if the iterable is empty to validate that a null result was not due to the container being empty.

      The order of Sets are not guaranteed (except for TreeSets and other Ordered Set implementations), so if you use this method, the first element could be any element from the Set.

      Specified by:
      getFirst in interface List<T>
      Specified by:
      getFirst in interface ListIterable<T>
      Specified by:
      getFirst in interface OrderedIterable<T>
      Specified by:
      getFirst in interface RichIterable<T>
      Specified by:
      getFirst in interface SequencedCollection<T>
      Overrides:
      getFirst in class AbstractImmutableList<T>
    • getLast

      public T getLast()
      Description copied from interface: RichIterable
      Returns the last element of an iterable. In the case of a List it is the element at the last index. In the case of any other Collection, it is the last element that would be returned during an iteration. If the iterable is empty, null is returned. If null is a valid element of the container, then a developer would need to check to see if the iterable is empty to validate that a null result was not due to the container being empty.

      The order of Sets are not guaranteed (except for TreeSets and other Ordered Set implementations), so if you use this method, the last element could be any element from the Set.

      Specified by:
      getLast in interface List<T>
      Specified by:
      getLast in interface ListIterable<T>
      Specified by:
      getLast in interface OrderedIterable<T>
      Specified by:
      getLast in interface RichIterable<T>
      Specified by:
      getLast in interface SequencedCollection<T>
      Overrides:
      getLast in class AbstractImmutableList<T>
    • getOnly

      public T getOnly()
      Description copied from interface: RichIterable
      Returns the element if the iterable has exactly one element. Otherwise, throw IllegalStateException.
      Specified by:
      getOnly in interface RichIterable<T>
      Returns:
      an element of an iterable.
    • size

      public int size()
      Description copied from interface: RichIterable
      Returns the number of items in this iterable.
      Specified by:
      size in interface Collection<T>
      Specified by:
      size in interface List<T>
      Specified by:
      size in interface RichIterable<T>
    • each

      public void each(Procedure<? super T> procedure)
      Description copied from interface: RichIterable
      The procedure is executed for each element in the iterable.

      Example using a Java 8 lambda expression:

       people.each(person -> LOGGER.info(person.getName()));
       

      Example using an anonymous inner class:

       people.each(new Procedure<Person>()
       {
           public void value(Person person)
           {
               LOGGER.info(person.getName());
           }
       });
       
      This method is a variant of InternalIterable.forEach(Procedure) that has a signature conflict with Iterable.forEach(java.util.function.Consumer).
      Specified by:
      each in interface RichIterable<T>
      See Also:
    • get

      public T get(int index)
      Description copied from interface: ListIterable
      Returns the item at the specified position in this list iterable.
      Specified by:
      get in interface List<T>
      Specified by:
      get in interface ListIterable<T>
    • contains

      public boolean contains(Object obj)
      Description copied from interface: RichIterable
      Returns true if the iterable has an element which responds true to element.equals(object).
      Specified by:
      contains in interface Collection<T>
      Specified by:
      contains in interface List<T>
      Specified by:
      contains in interface RichIterable<T>
      Overrides:
      contains in class AbstractRichIterable<T>
    • newWith

      public ImmutableList<T> newWith(T newItem)
      Description copied from interface: ImmutableCollection
      This method is similar to the with method in MutableCollection with the difference that a new copy of this collection with the element appended will be returned.
      Specified by:
      newWith in interface ImmutableCollection<T>
      Specified by:
      newWith in interface ImmutableList<T>