java.lang.Object

org.eclipse.collections.impl.AbstractRichIterable<T>

org.eclipse.collections.impl.lazy.AbstractLazyIterable<T>

All Implemented Interfaces:: Iterable<T>, InternalIterable<T>, LazyIterable<T>, RichIterable<T>

Direct Known Subclasses:: ChunkBooleanIterable, ChunkByteIterable, ChunkCharIterable, ChunkDoubleIterable, ChunkFloatIterable, ChunkIntIterable, ChunkIterable, ChunkLongIterable, ChunkShortIterable, CollectBooleanToObjectIterable, CollectByteToObjectIterable, CollectCharToObjectIterable, CollectDoubleToObjectIterable, CollectFloatToObjectIterable, CollectIntToObjectIterable, CollectIterable, CollectLongToObjectIterable, CollectShortToObjectIterable, CompositeIterable, DistinctIterable, DropIterable, DropWhileIterable, FlatCollectBooleanToObjectIterable, FlatCollectByteToObjectIterable, FlatCollectCharToObjectIterable, FlatCollectDoubleToObjectIterable, FlatCollectFloatToObjectIterable, FlatCollectIntToObjectIterable, FlatCollectIterable, FlatCollectLongToObjectIterable, FlatCollectShortToObjectIterable, Interval, LazyIterableAdapter, RejectIterable, ReverseIterable, SelectInstancesOfIterable, SelectIterable, TakeIterable, TakeWhileIterable, TapIterable, ZipIterable, ZipWithIndexIterable

public abstract class AbstractLazyIterable<T>
extends AbstractRichIterable<T>
implements LazyIterable<T>

AbstractLazyIterable provides a base from which deferred iterables such as SelectIterable, RejectIterable and CollectIterable can be derived.

Constructor Summary

Constructors

Constructor Description

AbstractLazyIterable()

Method Summary

Modifier and Type	Method	Description
`<K, V> MapIterable<K,V>`	`aggregateInPlaceBy(Function<? super T,? extends K> groupBy, Function0<? extends V> zeroValueFactory, Procedure2<? super V,? super T> mutatingAggregator)`	Applies an aggregate procedure over the iterable grouping results into a Map based on the specific groupBy function.
`LazyIterable<T>`	`asLazy()`	Returns a lazy (deferred) iterable, most likely implemented by calling LazyIterate.adapt(this).
`LazyIterable<RichIterable<T>>`	`chunk(int size)`	Creates a deferred chunk iterable.
`<V> LazyIterable<V>`	`collect(Function<? super T,? extends V> function)`	Creates a deferred iterable for collecting elements from the current iterable.
`LazyBooleanIterable`	`collectBoolean(BooleanFunction<? super T> booleanFunction)`	Returns a lazy BooleanIterable which will transform the underlying iterable data to boolean values based on the booleanFunction.
`LazyByteIterable`	`collectByte(ByteFunction<? super T> byteFunction)`	Returns a lazy ByteIterable which will transform the underlying iterable data to byte values based on the byteFunction.
`LazyCharIterable`	`collectChar(CharFunction<? super T> charFunction)`	Returns a lazy CharIterable which will transform the underlying iterable data to char values based on the charFunction.
`LazyDoubleIterable`	`collectDouble(DoubleFunction<? super T> doubleFunction)`	Returns a lazy DoubleIterable which will transform the underlying iterable data to double values based on the doubleFunction.
`LazyFloatIterable`	`collectFloat(FloatFunction<? super T> floatFunction)`	Returns a lazy FloatIterable which will transform the underlying iterable data to float values based on the floatFunction.
`<V> LazyIterable<V>`	`collectIf(Predicate<? super T> predicate, Function<? super T,? extends V> function)`	Creates a deferred iterable for selecting and collecting elements from the current iterable.
`LazyIntIterable`	`collectInt(IntFunction<? super T> intFunction)`	Returns a lazy IntIterable which will transform the underlying iterable data to int values based on the intFunction.
`LazyLongIterable`	`collectLong(LongFunction<? super T> longFunction)`	Returns a lazy LongIterable which will transform the underlying iterable data to long values based on the longFunction.
`LazyShortIterable`	`collectShort(ShortFunction<? super T> shortFunction)`	Returns a lazy ShortIterable which will transform the underlying iterable data to short values based on the shortFunction.
`<P, V> LazyIterable<V>`	`collectWith(Function2<? super T,? super P,? extends V> function, P parameter)`	Same as `RichIterable.collect(Function)` with a `Function2` and specified parameter which is passed to the block.
`LazyIterable<T>`	`concatenate(Iterable<T> iterable)`	Creates a deferred iterable that will join this iterable with the specified iterable.
`LazyIterable<T>`	`distinct()`	Creates a deferred distinct iterable to get distinct elements from the current iterable.
`LazyIterable<T>`	`drop(int count)`	Creates a deferred drop iterable for the current iterable using the specified count as the limit.
`LazyIterable<T>`	`dropWhile(Predicate<? super T> predicate)`
`<V> LazyIterable<V>`	`flatCollect(Function<? super T,? extends Iterable<V>> function)`	Creates a deferred flattening iterable for the current iterable.
`T`	`getFirst()`	Returns the first element of an iterable.
`T`	`getLast()`	Returns the last element of an iterable.
`T`	`getOnly()`	Returns the element if the iterable has exactly one element.
`<V> Multimap<V,T>`	`groupBy(Function<? super T,? extends V> function)`	For each element of the iterable, the function is evaluated and the results of these evaluations are collected into a new multimap, where the transformed value is the key and the original values are added to the same (or similar) species of collection as the source iterable.
`<V> Multimap<V,T>`	`groupByEach(Function<? super T,? extends Iterable<V>> function)`	Similar to `RichIterable.groupBy(Function)`, except the result of evaluating function will return a collection of keys for each value.
`<V> MapIterable<V,T>`	`groupByUniqueKey(Function<? super T,? extends V> function)`	For each element of the iterable, the function is evaluated and he results of these evaluations are collected into a new map, where the transformed value is the key.
`<R extends Collection<T>> R`	`into(R target)`	Adds all the elements in this iterable to the specific target Collection.
`boolean`	`isEmpty()`	Returns true if this iterable has zero items.
`<V extends Comparable<? super V>> Optional<T>`	`maxByOptional(Function<? super T,? extends V> function)`	Returns the maximum elements out of this container based on the natural order of the attribute returned by Function as an Optional.
`Optional<T>`	`maxOptional()`	Returns the maximum element out of this container based on the natural order as an Optional.
`Optional<T>`	`maxOptional(Comparator<? super T> comparator)`	Returns the maximum element out of this container based on the comparator as an Optional.
`<V extends Comparable<? super V>> Optional<T>`	`minByOptional(Function<? super T,? extends V> function)`	Returns the minimum elements out of this container based on the natural order of the attribute returned by Function as an Optional.
`Optional<T>`	`minOptional()`	Returns the minimum element out of this container based on the natural order as an Optional.
`Optional<T>`	`minOptional(Comparator<? super T> comparator)`	Returns the minimum element out of this container based on the comparator as an Optional.
`PartitionMutableList<T>`	`partition(Predicate<? super T> predicate)`	Filters a collection into a PartitionedIterable based on the evaluation of the predicate.
`<P> PartitionMutableList<T>`	`partitionWith(Predicate2<? super T,? super P> predicate, P parameter)`	Filters a collection into a PartitionIterable based on the evaluation of the predicate.
`LazyIterable<T>`	`reject(Predicate<? super T> predicate)`	Creates a deferred iterable for rejecting elements from the current iterable.
`<P> LazyIterable<T>`	`rejectWith(Predicate2<? super T,? super P> predicate, P parameter)`	Similar to `RichIterable.reject(Predicate)`, except with an evaluation parameter for the second generic argument in `Predicate2`.
`LazyIterable<T>`	`select(Predicate<? super T> predicate)`	Creates a deferred iterable for selecting elements from the current iterable.
`<S> LazyIterable<S>`	`selectInstancesOf(Class<S> clazz)`	Returns all elements of the source collection that are instances of the Class `clazz`.
`<P> LazyIterable<T>`	`selectWith(Predicate2<? super T,? super P> predicate, P parameter)`	Similar to `RichIterable.select(Predicate)`, except with an evaluation parameter for the second generic argument in `Predicate2`.
`int`	`size()`	Returns the number of items in this iterable.
`<V> ObjectDoubleMap<V>`	`sumByDouble(Function<? super T,? extends V> groupBy, DoubleFunction<? super T> function)`	Groups and sums the values using the two specified functions.
`<V> ObjectDoubleMap<V>`	`sumByFloat(Function<? super T,? extends V> groupBy, FloatFunction<? super T> function)`	Groups and sums the values using the two specified functions.
`<V> ObjectLongMap<V>`	`sumByInt(Function<? super T,? extends V> groupBy, IntFunction<? super T> function)`	Groups and sums the values using the two specified functions.
`<V> ObjectLongMap<V>`	`sumByLong(Function<? super T,? extends V> groupBy, LongFunction<? super T> function)`	Groups and sums the values using the two specified functions.
`LazyIterable<T>`	`take(int count)`	Creates a deferred take iterable for the current iterable using the specified count as the limit.
`LazyIterable<T>`	`takeWhile(Predicate<? super T> predicate)`
`LazyIterable<T>`	`tap(Procedure<? super T> procedure)`	Creates a deferred tap iterable.
`<E> E[]`	`toArray(E[] array)`	Converts this iterable to an array using the specified target array, assuming the target array is as long or longer than the iterable.
`MutableStack<T>`	`toStack()`
`<S> LazyIterable<Pair<T,S>>`	`zip(Iterable<S> that)`	Creates a deferred zip iterable.
`LazyIterable<Pair<T,Integer>>`	`zipWithIndex()`	Creates a deferred zipWithIndex iterable.

Methods inherited from class org.eclipse.collections.impl.AbstractRichIterable

allSatisfy, allSatisfyWith, anySatisfy, anySatisfyWith, appendString, appendString, collect, collectBoolean, collectByte, collectChar, collectDouble, collectFloat, collectIf, collectInt, collectLong, collectShort, collectWith, contains, containsAll, containsAllArguments, containsAllIterable, count, countByEach, countWith, detect, detectOptional, detectWith, detectWithIfNone, detectWithOptional, flatCollect, forEach, forEachWith, forEachWithIndex, groupBy, groupByEach, groupByUniqueKey, injectInto, injectInto, injectInto, injectInto, injectInto, max, max, maxBy, min, min, minBy, noneSatisfy, noneSatisfyWith, reject, rejectWith, select, selectWith, sumOfDouble, sumOfFloat, sumOfInt, sumOfLong, toArray, toBag, toBiMap, toList, toMap, toSet, toSortedBag, toSortedBag, toSortedBagBy, toSortedListBy, toSortedMap, toSortedMap, toSortedMapBy, toSortedSet, toSortedSet, toSortedSetBy, toString, zip, zipWithIndex

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.eclipse.collections.api.InternalIterable

forEach, forEachWith, forEachWithIndex

Methods inherited from interface java.lang.Iterable

iterator, spliterator

Methods inherited from interface org.eclipse.collections.api.LazyIterable

flatCollectWith

Methods inherited from interface org.eclipse.collections.api.RichIterable

aggregateBy, aggregateBy, allSatisfy, allSatisfyWith, anySatisfy, anySatisfyWith, appendString, appendString, appendString, collect, collectBoolean, collectByte, collectChar, collectDouble, collectFloat, collectIf, collectInt, collectLong, collectShort, collectWith, contains, containsAll, containsAllArguments, containsAllIterable, containsBy, count, countBy, countBy, countByEach, countByEach, countByWith, countByWith, countWith, detect, detectIfNone, detectOptional, detectWith, detectWithIfNone, detectWithOptional, each, flatCollect, flatCollectBoolean, flatCollectByte, flatCollectChar, flatCollectDouble, flatCollectFloat, flatCollectInt, flatCollectLong, flatCollectShort, flatCollectWith, forEach, getAny, groupBy, groupByAndCollect, groupByEach, groupByUniqueKey, injectInto, injectInto, injectInto, injectInto, injectInto, makeString, makeString, makeString, max, max, maxBy, min, min, minBy, noneSatisfy, noneSatisfyWith, notEmpty, reduce, reduceInPlace, reduceInPlace, reject, rejectWith, select, selectWith, summarizeDouble, summarizeFloat, summarizeInt, summarizeLong, sumOfDouble, sumOfFloat, sumOfInt, sumOfLong, toArray, toBag, toBiMap, toList, toMap, toMap, toSet, toSortedBag, toSortedBag, toSortedBagBy, toSortedList, toSortedList, toSortedListBy, toSortedMap, toSortedMap, toSortedMapBy, toSortedSet, toSortedSet, toSortedSetBy, toString, zip, zipWithIndex

Constructor Details
- AbstractLazyIterable
  
  public AbstractLazyIterable()
Method Details
- asLazy
  
  public LazyIterable<T> asLazy()
  
  Description copied from interface: RichIterable
  
  Returns a lazy (deferred) iterable, most likely implemented by calling LazyIterate.adapt(this).
  
  Specified by:
  
  asLazy in interface RichIterable<T>
  
  Overrides:
  
  asLazy in class AbstractRichIterable<T>
- into
  
  public <R extends Collection<T>> R into(R target)
  
  Description copied from interface: RichIterable
  
  Adds all the elements in this iterable to the specific target Collection.
  
  Specified by:
  
  into in interface LazyIterable<T>
  
  Specified by:
  
  into in interface RichIterable<T>
  
  Overrides:
  
  into in class AbstractRichIterable<T>
- toArray
  
  public <E> E[] toArray(E[] array)
  
  Description copied from interface: RichIterable
  
  Converts this iterable to an array using the specified target array, assuming the target array is as long or longer than the iterable.
  
  Specified by:
  
  toArray in interface RichIterable<T>
  
  Overrides:
  
  toArray in class AbstractRichIterable<T>
  
  See Also:
  
  Collection.toArray(Object[])
- size
  
  public int size()
  
  Description copied from interface: RichIterable
  
  Returns the number of items in this iterable.
  
  Specified by:
  
  size in interface RichIterable<T>
- isEmpty
  
  public boolean isEmpty()
  
  Description copied from interface: RichIterable
  
  Returns true if this iterable has zero items.
  
  Specified by:
  
  isEmpty in interface RichIterable<T>
  
  Overrides:
  
  isEmpty in class AbstractRichIterable<T>
- 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 LazyIterable<T>
  
  Specified by:
  
  getFirst in interface RichIterable<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 RichIterable<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.
- select
  
  public LazyIterable<T> select(Predicate<? super T> predicate)
  
  Description copied from interface: LazyIterable
  
  Creates a deferred iterable for selecting elements from the current iterable.
  
  Specified by:
  
  select in interface LazyIterable<T>
  
  Specified by:
  
  select in interface RichIterable<T>
- selectWith
  
  public <P> LazyIterable<T> selectWith(Predicate2<? super T,? super P> predicate, P parameter)
  
  Description copied from interface: RichIterable
  Similar to RichIterable.select(Predicate), except with an evaluation parameter for the second generic argument in Predicate2.
  E.g. return a Collection of Person elements where the person has an age greater than or equal to 18 years
  Example using a Java 8 lambda expression:
  RichIterable<Person> selected = people.selectWith((Person person, Integer age) -> person.getAge()>= age, Integer.valueOf(18));
  
  Example using an anonymous inner class:
  RichIterable<Person> selected = people.selectWith(new Predicate2<Person, Integer>() { public boolean accept(Person person, Integer age) { return person.getAge()>= age; } }, Integer.valueOf(18));
  Specified by:
  
  selectWith in interface LazyIterable<T>
  
  Specified by:
  
  selectWith in interface RichIterable<T>
  
  Parameters:
  
  predicate - a Predicate2 to use as the select criteria
  
  parameter - a parameter to pass in for evaluation of the second argument P in predicate
  
  See Also:
  
  RichIterable.select(Predicate)
- reject
  
  public LazyIterable<T> reject(Predicate<? super T> predicate)
  
  Description copied from interface: LazyIterable
  
  Creates a deferred iterable for rejecting elements from the current iterable.
  
  Specified by:
  
  reject in interface LazyIterable<T>
  
  Specified by:
  
  reject in interface RichIterable<T>
  
  Parameters:
  
  predicate - a Predicate to use as the reject criteria
  
  Returns:
  
  a RichIterable that contains elements that cause Predicate.accept(Object) method to evaluate to false
- rejectWith
  
  public <P> LazyIterable<T> rejectWith(Predicate2<? super T,? super P> predicate, P parameter)
  
  Description copied from interface: RichIterable
  Similar to RichIterable.reject(Predicate), except with an evaluation parameter for the second generic argument in Predicate2.
  E.g. return a Collection of Person elements where the person has an age greater than or equal to 18 years
  Example using a Java 8 lambda expression:
  RichIterable<Person> rejected = people.rejectWith((Person person, Integer age) -> person.getAge() < age, Integer.valueOf(18));
  
  Example using an anonymous inner class:
  MutableList<Person> rejected = people.rejectWith(new Predicate2<Person, Integer>() { public boolean accept(Person person, Integer age) { return person.getAge() < age; } }, Integer.valueOf(18));
  Specified by:
  
  rejectWith in interface LazyIterable<T>
  
  Specified by:
  
  rejectWith in interface RichIterable<T>
  
  Parameters:
  
  predicate - a Predicate2 to use as the select criteria
  
  parameter - a parameter to pass in for evaluation of the second argument P in predicate
  
  See Also:
  
  RichIterable.select(Predicate)
- partition
  
  public PartitionMutableList<T> partition(Predicate<? super T> predicate)
  
  Description copied from interface: RichIterable
  Filters a collection into a PartitionedIterable based on the evaluation of the predicate.
  Example using a Java 8 lambda expression:
  PartitionIterable<Person> newYorkersAndNonNewYorkers = people.partition(person -> person.getAddress().getState().getName().equals("New York"));
  
  Example using an anonymous inner class:
  PartitionIterable<Person> newYorkersAndNonNewYorkers = people.partition(new Predicate<Person>() { public boolean accept(Person person) { return person.getAddress().getState().getName().equals("New York"); } });
  Specified by:
  
  partition in interface RichIterable<T>
- partitionWith
  
  public <P> PartitionMutableList<T> partitionWith(Predicate2<? super T,? super P> predicate, P parameter)
  
  Description copied from interface: RichIterable
  Filters a collection into a PartitionIterable based on the evaluation of the predicate.
  Example using a Java 8 lambda expression:
  PartitionIterable<Person> newYorkersAndNonNewYorkers = people.partitionWith((Person person, String state) -> person.getAddress().getState().getName().equals(state), "New York");
  
  Example using an anonymous inner class:
  PartitionIterable<Person> newYorkersAndNonNewYorkers = people.partitionWith(new Predicate2<Person, String>() { public boolean accept(Person person, String state) { return person.getAddress().getState().getName().equals(state); } }, "New York");
  Specified by:
  
  partitionWith in interface RichIterable<T>
- selectInstancesOf
  
  public <S> LazyIterable<S> selectInstancesOf(Class<S> clazz)
  
  Description copied from interface: RichIterable
  Returns all elements of the source collection that are instances of the Class clazz.
  RichIterable<Integer> integers = List.mutable.with(new Integer(0), new Long(0L), new Double(0.0)).selectInstancesOf(Integer.class);
  Specified by:
  
  selectInstancesOf in interface LazyIterable<T>
  
  Specified by:
  
  selectInstancesOf in interface RichIterable<T>
- collect
  
  public <V> LazyIterable<V> collect(Function<? super T,? extends V> function)
  
  Description copied from interface: LazyIterable
  
  Creates a deferred iterable for collecting elements from the current iterable.
  
  Specified by:
  
  collect in interface LazyIterable<T>
  
  Specified by:
  
  collect in interface RichIterable<T>
- collectBoolean
  
  public LazyBooleanIterable collectBoolean(BooleanFunction<? super T> booleanFunction)
  
  Description copied from interface: LazyIterable
  
  Returns a lazy BooleanIterable which will transform the underlying iterable data to boolean values based on the booleanFunction.
  
  Specified by:
  
  collectBoolean in interface LazyIterable<T>
  
  Specified by:
  
  collectBoolean in interface RichIterable<T>
- collectByte
  
  public LazyByteIterable collectByte(ByteFunction<? super T> byteFunction)
  
  Description copied from interface: LazyIterable
  
  Returns a lazy ByteIterable which will transform the underlying iterable data to byte values based on the byteFunction.
  
  Specified by:
  
  collectByte in interface LazyIterable<T>
  
  Specified by:
  
  collectByte in interface RichIterable<T>
- collectChar
  
  public LazyCharIterable collectChar(CharFunction<? super T> charFunction)
  
  Description copied from interface: LazyIterable
  
  Returns a lazy CharIterable which will transform the underlying iterable data to char values based on the charFunction.
  
  Specified by:
  
  collectChar in interface LazyIterable<T>
  
  Specified by:
  
  collectChar in interface RichIterable<T>
- collectDouble
  
  public LazyDoubleIterable collectDouble(DoubleFunction<? super T> doubleFunction)
  
  Description copied from interface: LazyIterable
  
  Returns a lazy DoubleIterable which will transform the underlying iterable data to double values based on the doubleFunction.
  
  Specified by:
  
  collectDouble in interface LazyIterable<T>
  
  Specified by:
  
  collectDouble in interface RichIterable<T>
- collectFloat
  
  public LazyFloatIterable collectFloat(FloatFunction<? super T> floatFunction)
  
  Description copied from interface: LazyIterable
  
  Returns a lazy FloatIterable which will transform the underlying iterable data to float values based on the floatFunction.
  
  Specified by:
  
  collectFloat in interface LazyIterable<T>
  
  Specified by:
  
  collectFloat in interface RichIterable<T>
- collectInt
  
  public LazyIntIterable collectInt(IntFunction<? super T> intFunction)
  
  Description copied from interface: LazyIterable
  
  Returns a lazy IntIterable which will transform the underlying iterable data to int values based on the intFunction.
  
  Specified by:
  
  collectInt in interface LazyIterable<T>
  
  Specified by:
  
  collectInt in interface RichIterable<T>
- collectLong
  
  public LazyLongIterable collectLong(LongFunction<? super T> longFunction)
  
  Description copied from interface: LazyIterable
  
  Returns a lazy LongIterable which will transform the underlying iterable data to long values based on the longFunction.
  
  Specified by:
  
  collectLong in interface LazyIterable<T>
  
  Specified by:
  
  collectLong in interface RichIterable<T>
- collectShort
  
  public LazyShortIterable collectShort(ShortFunction<? super T> shortFunction)
  
  Description copied from interface: LazyIterable
  
  Returns a lazy ShortIterable which will transform the underlying iterable data to short values based on the shortFunction.
  
  Specified by:
  
  collectShort in interface LazyIterable<T>
  
  Specified by:
  
  collectShort in interface RichIterable<T>
- collectWith
  
  public <P, V> LazyIterable<V> collectWith(Function2<? super T,? super P,? extends V> function, P parameter)
  
  Description copied from interface: RichIterable
  Same as RichIterable.collect(Function) with a Function2 and specified parameter which is passed to the block.
  Example using a Java 8 lambda expression:
  RichIterable<Integer> integers = Lists.mutable.with(1, 2, 3).collectWith((each, parameter) -> each + parameter, Integer.valueOf(1));
  
  Example using an anonymous inner class:
  Function2<Integer, Integer, Integer> addParameterFunction = new Function2<Integer, Integer, Integer>() { public Integer value(Integer each, Integer parameter) { return each + parameter; } }; RichIterable<Integer> integers = Lists.mutable.with(1, 2, 3).collectWith(addParameterFunction, Integer.valueOf(1));
  Specified by:
  
  collectWith in interface LazyIterable<T>
  
  Specified by:
  
  collectWith in interface RichIterable<T>
  
  Parameters:
  
  function - A Function2 to use as the collect transformation function
  
  parameter - A parameter to pass in for evaluation of the second argument P in function
  
  Returns:
  
  A new RichIterable that contains the transformed elements returned by Function2.value(Object, Object)
  
  See Also:
  
  RichIterable.collect(Function)
- flatCollect
  
  public <V> LazyIterable<V> flatCollect(Function<? super T,? extends Iterable<V>> function)
  
  Description copied from interface: LazyIterable
  
  Creates a deferred flattening iterable for the current iterable.
  
  Specified by:
  
  flatCollect in interface LazyIterable<T>
  
  Specified by:
  
  flatCollect in interface RichIterable<T>
  
  Parameters:
  
  function - The Function to apply
  
  Returns:
  
  a new flattened collection produced by applying the given function
- concatenate
  
  public LazyIterable<T> concatenate(Iterable<T> iterable)
  
  Description copied from interface: LazyIterable
  
  Creates a deferred iterable that will join this iterable with the specified iterable.
  
  Specified by:
  
  concatenate in interface LazyIterable<T>
- collectIf
  
  public <V> LazyIterable<V> collectIf(Predicate<? super T> predicate, Function<? super T,? extends V> function)
  
  Description copied from interface: LazyIterable
  
  Creates a deferred iterable for selecting and collecting elements from the current iterable.
  
  Specified by:
  
  collectIf in interface LazyIterable<T>
  
  Specified by:
  
  collectIf in interface RichIterable<T>
- take
  
  public LazyIterable<T> take(int count)
  
  Description copied from interface: LazyIterable
  
  Creates a deferred take iterable for the current iterable using the specified count as the limit.
  
  Specified by:
  
  take in interface LazyIterable<T>
- drop
  
  public LazyIterable<T> drop(int count)
  
  Description copied from interface: LazyIterable
  
  Creates a deferred drop iterable for the current iterable using the specified count as the limit.
  
  Specified by:
  
  drop in interface LazyIterable<T>
- takeWhile
  
  public LazyIterable<T> takeWhile(Predicate<? super T> predicate)
  
  Specified by:
  
  takeWhile in interface LazyIterable<T>
  
  See Also:
  
  OrderedIterable.takeWhile(Predicate)
- dropWhile
  
  public LazyIterable<T> dropWhile(Predicate<? super T> predicate)
  
  Specified by:
  
  dropWhile in interface LazyIterable<T>
  
  See Also:
  
  OrderedIterable.dropWhile(Predicate)
- 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>
- toStack
  
  public MutableStack<T> toStack()
- groupBy
  
  public <V> Multimap<V,T> groupBy(Function<? super T,? extends V> function)
  
  Description copied from interface: RichIterable
  For each element of the iterable, the function is evaluated and the results of these evaluations are collected into a new multimap, where the transformed value is the key and the original values are added to the same (or similar) species of collection as the source iterable.
  Example using a Java 8 method reference:
  Multimap<String, Person> peopleByLastName = people.groupBy(Person::getLastName);
  
  Example using an anonymous inner class:
  Multimap<String, Person> peopleByLastName = people.groupBy(new Function<Person, String>() { public String valueOf(Person person) { return person.getLastName(); } });
  Specified by:
  
  groupBy in interface RichIterable<T>
- groupByEach
  
  public <V> Multimap<V,T> groupByEach(Function<? super T,? extends Iterable<V>> function)
  
  Description copied from interface: RichIterable
  
  Similar to RichIterable.groupBy(Function), except the result of evaluating function will return a collection of keys for each value.
  
  Specified by:
  
  groupByEach in interface RichIterable<T>
- groupByUniqueKey
  
  public <V> MapIterable<V,T> groupByUniqueKey(Function<? super T,? extends V> function)
  
  Description copied from interface: RichIterable
  
  For each element of the iterable, the function is evaluated and he results of these evaluations are collected into a new map, where the transformed value is the key. The generated keys must each be unique, or else an exception is thrown.
  
  Specified by:
  
  groupByUniqueKey in interface RichIterable<T>
  
  See Also:
  
  RichIterable.groupBy(Function)
- zip
  
  public <S> LazyIterable<Pair<T,S>> zip(Iterable<S> that)
  
  Description copied from interface: LazyIterable
  
  Creates a deferred zip iterable.
  
  Specified by:
  
  zip in interface LazyIterable<T>
  
  Specified by:
  
  zip in interface RichIterable<T>
  
  Type Parameters:
  
  S - the type of the second half of the returned pairs
  
  Parameters:
  
  that - The RichIterable providing the second half of each result pair
  
  Returns:
  
  A new RichIterable containing pairs consisting of corresponding elements of this RichIterable and that. The length of the returned RichIterable is the minimum of the lengths of this RichIterable and that.
- zipWithIndex
  
  public LazyIterable<Pair<T,Integer>> zipWithIndex()
  
  Description copied from interface: LazyIterable
  
  Creates a deferred zipWithIndex iterable.
  
  Specified by:
  
  zipWithIndex in interface LazyIterable<T>
  
  Specified by:
  
  zipWithIndex in interface RichIterable<T>
  
  Returns:
  
  A new RichIterable containing pairs consisting of all elements of this RichIterable paired with their index. Indices start at 0.
  
  See Also:
  
  RichIterable.zip(Iterable)
- chunk
  
  public LazyIterable<RichIterable<T>> chunk(int size)
  
  Description copied from interface: LazyIterable
  
  Creates a deferred chunk iterable.
  
  Specified by:
  
  chunk in interface LazyIterable<T>
  
  Specified by:
  
  chunk in interface RichIterable<T>
  
  Parameters:
  
  size - the number of elements per chunk
  
  Returns:
  
  A RichIterable containing RichIterables of size size, except the last will be truncated if the elements don't divide evenly.
- tap
  
  public LazyIterable<T> tap(Procedure<? super T> procedure)
  
  Description copied from interface: LazyIterable
  
  Creates a deferred tap iterable.
  
  Specified by:
  
  tap in interface LazyIterable<T>
  
  Specified by:
  
  tap in interface RichIterable<T>
  
  See Also:
  
  RichIterable.each(Procedure), RichIterable.forEach(Procedure)
- aggregateInPlaceBy
  
  public <K, V> MapIterable<K,V> aggregateInPlaceBy(Function<? super T,? extends K> groupBy, Function0<? extends V> zeroValueFactory, Procedure2<? super V,? super T> mutatingAggregator)
  
  Description copied from interface: RichIterable
  
  Applies an aggregate procedure over the iterable grouping results into a Map based on the specific groupBy function. Aggregate results are required to be mutable as they will be changed in place by the procedure. A second function specifies the initial "zero" aggregate value to work with (i.e. new AtomicInteger(0)).
  
  Specified by:
  
  aggregateInPlaceBy in interface RichIterable<T>
- sumByInt
  
  public <V> ObjectLongMap<V> sumByInt(Function<? super T,? extends V> groupBy, IntFunction<? super T> function)
  
  Description copied from interface: RichIterable
  
  Groups and sums the values using the two specified functions.
  
  Specified by:
  
  sumByInt in interface RichIterable<T>
- sumByFloat
  
  public <V> ObjectDoubleMap<V> sumByFloat(Function<? super T,? extends V> groupBy, FloatFunction<? super T> function)
  
  Description copied from interface: RichIterable
  
  Groups and sums the values using the two specified functions.
  
  Specified by:
  
  sumByFloat in interface RichIterable<T>
- sumByLong
  
  public <V> ObjectLongMap<V> sumByLong(Function<? super T,? extends V> groupBy, LongFunction<? super T> function)
  
  Description copied from interface: RichIterable
  
  Groups and sums the values using the two specified functions.
  
  Specified by:
  
  sumByLong in interface RichIterable<T>
- sumByDouble
  
  public <V> ObjectDoubleMap<V> sumByDouble(Function<? super T,? extends V> groupBy, DoubleFunction<? super T> function)
  
  Description copied from interface: RichIterable
  
  Groups and sums the values using the two specified functions.
  
  Specified by:
  
  sumByDouble in interface RichIterable<T>
- minOptional
  
  public Optional<T> minOptional(Comparator<? super T> comparator)
  
  Description copied from interface: RichIterable
  
  Returns the minimum element out of this container based on the comparator as an Optional. If the container is empty Optional.empty() is returned.
  
  Specified by:
  
  minOptional in interface RichIterable<T>
- maxOptional
  
  public Optional<T> maxOptional(Comparator<? super T> comparator)
  
  Description copied from interface: RichIterable
  
  Returns the maximum element out of this container based on the comparator as an Optional. If the container is empty Optional.empty() is returned.
  
  Specified by:
  
  maxOptional in interface RichIterable<T>
- minOptional
  
  public Optional<T> minOptional()
  
  Description copied from interface: RichIterable
  
  Returns the minimum element out of this container based on the natural order as an Optional. If the container is empty Optional.empty() is returned.
  
  Specified by:
  
  minOptional in interface RichIterable<T>
- maxOptional
  
  public Optional<T> maxOptional()
  
  Description copied from interface: RichIterable
  
  Returns the maximum element out of this container based on the natural order as an Optional. If the container is empty Optional.empty() is returned.
  
  Specified by:
  
  maxOptional in interface RichIterable<T>
- minByOptional
  
  public <V extends Comparable<? super V>> Optional<T> minByOptional(Function<? super T,? extends V> function)
  
  Description copied from interface: RichIterable
  
  Returns the minimum elements out of this container based on the natural order of the attribute returned by Function as an Optional. If the container is empty Optional.empty() is returned.
  
  Specified by:
  
  minByOptional in interface RichIterable<T>
- maxByOptional
  
  public <V extends Comparable<? super V>> Optional<T> maxByOptional(Function<? super T,? extends V> function)
  
  Description copied from interface: RichIterable
  
  Returns the maximum elements out of this container based on the natural order of the attribute returned by Function as an Optional. If the container is empty Optional.empty() is returned.
  
  Specified by:
  
  maxByOptional in interface RichIterable<T>

Class AbstractLazyIterable<T>

Constructor Summary