Package org.eclipse.collections.impl.lazy

Class DistinctIterable<T>

java.lang.Object
org.eclipse.collections.impl.AbstractRichIterable<T>
org.eclipse.collections.impl.lazy.AbstractLazyIterable<T>
org.eclipse.collections.impl.lazy.DistinctIterable<T>
All Implemented Interfaces:
Iterable<T>, InternalIterable<T>, LazyIterable<T>, RichIterable<T>
public class DistinctIterable<T> extends AbstractLazyIterable<T>
A DistinctIterable is an iterable that eliminates duplicates from a source iterable as it iterates.
Since:
5.0

  • Constructor Details

    • DistinctIterable

      public DistinctIterable(Iterable<T> newAdapted)

  • Method Details

    • distinct

      public LazyIterable<T> distinct()
      Description copied from interface: LazyIterable
      Creates a deferred distinct iterable to get distinct elements from the current iterable.
      Specified by:
      distinct in interface LazyIterable<T>
      Overrides:
      distinct in class AbstractLazyIterable<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).
      See Also:

    • forEachWithIndex

      public void forEachWithIndex(ObjectIntProcedure<? super T> objectIntProcedure)
      Description copied from interface: InternalIterable
      Iterates over the iterable passing each element and the current relative int index to the specified instance of ObjectIntProcedure.

      Example using a Java 8 lambda: 

       people.forEachWithIndex((Person person, int index) -> LOGGER.info("Index: " + index + " person: " + person.getName()));

      Example using an anonymous inner class: 

       people.forEachWithIndex(new ObjectIntProcedure<Person>()
 {
     public void value(Person person, int index)
     {
         LOGGER.info("Index: " + index + " person: " + person.getName());
     }
 });
      Specified by:
      forEachWithIndex in interface InternalIterable<T>
      Overrides:
      forEachWithIndex in class AbstractRichIterable<T>

    • anySatisfy

      public boolean anySatisfy(Predicate<? super T> predicate)
      Description copied from interface: RichIterable
      Returns true if the predicate evaluates to true for any element of the iterable. Returns false if the iterable is empty, or if no element returned true when evaluating the predicate.
      Specified by:
      anySatisfy in interface RichIterable<T>
      Overrides:
      anySatisfy in class AbstractRichIterable<T>

    • allSatisfy

      public boolean allSatisfy(Predicate<? super T> predicate)
      Description copied from interface: RichIterable
      Returns true if the predicate evaluates to true for every element of the iterable or if the iterable is empty. Otherwise, returns false.
      Specified by:
      allSatisfy in interface RichIterable<T>
      Overrides:
      allSatisfy in class AbstractRichIterable<T>

    • noneSatisfy

      public boolean noneSatisfy(Predicate<? super T> predicate)
      Description copied from interface: RichIterable
      Returns true if the predicate evaluates to false for every element of the iterable or if the iterable is empty. Otherwise, returns false.
      Specified by:
      noneSatisfy in interface RichIterable<T>
      Overrides:
      noneSatisfy in class AbstractRichIterable<T>

    • detect

      public T detect(Predicate<? super T> predicate)
      Description copied from interface: RichIterable
      Returns the first element of the iterable for which the predicate evaluates to true or null in the case where no element returns true. This method is commonly called find.

      Example using a Java 8 lambda expression: 

       Person person =
     people.detect(person -> person.getFirstName().equals("John") && person.getLastName().equals("Smith"));

      Example using an anonymous inner class: 

       Person person =
     people.detect(new Predicate<Person>()
     {
         public boolean accept(Person person)
         {
             return person.getFirstName().equals("John") && person.getLastName().equals("Smith");
         }
     });
      Specified by:
      detect in interface RichIterable<T>
      Overrides:
      detect in class AbstractRichIterable<T>

    • detectOptional

      public Optional<T> detectOptional(Predicate<? super T> predicate)
      Description copied from interface: RichIterable
      Returns the first element of the iterable for which the predicate evaluates to true as an Optional. This method is commonly called find.

      Example using a Java 8 lambda expression: 

       Person person =
     people.detectOptional(person -> person.getFirstName().equals("John") && person.getLastName().equals("Smith"));

      Specified by:
      detectOptional in interface RichIterable<T>
      Overrides:
      detectOptional in class AbstractRichIterable<T>

    • iterator

      public Iterator<T> iterator()