AbstractLazyIterable (Goldman Sachs Collections

java.lang.Object
- com.gs.collections.impl.AbstractRichIterable<T>
- - com.gs.collections.impl.lazy.AbstractLazyIterable<T>

All Implemented Interfaces:

com.gs.collections.api.InternalIterable<T>, com.gs.collections.api.LazyIterable<T>, com.gs.collections.api.RichIterable<T>, java.lang.Iterable<T>

Direct Known Subclasses:

ChunkIterable, CollectBooleanToObjectIterable, CollectByteToObjectIterable, CollectCharToObjectIterable, CollectDoubleToObjectIterable, CollectFloatToObjectIterable, CollectIntToObjectIterable, CollectIterable, CollectLongToObjectIterable, CollectShortToObjectIterable, CompositeIterable, DistinctIterable, DropIterable, FlatCollectIterable, Interval, LazyIterableAdapter, RejectIterable, ReverseIterable, SelectInstancesOfIterable, SelectIterable, TakeIterable, TapIterable, ZipIterable, ZipWithIndexIterable
```
@Immutable
public abstract class AbstractLazyIterable<T>
extends AbstractRichIterable<T>
implements com.gs.collections.api.LazyIterable<T>
```
AbstractLazyIterable provides a base from which deferred iterables such as SelectIterable, RejectIterable and CollectIterable can be derived.

Constructor Summary

Constructors
Constructor and Description

AbstractLazyIterable()

Constructors
Constructor and Description
`AbstractLazyIterable()`

Method Summary

Methods
Modifier and Type	Method and Description
`<K,V> com.gs.collections.api.map.MapIterable<K,V>`	`aggregateBy(com.gs.collections.api.block.function.Function<? super T,? extends K> groupBy, com.gs.collections.api.block.function.Function0<? extends V> zeroValueFactory, com.gs.collections.api.block.function.Function2<? super V,? super T,? extends V> nonMutatingAggregator)` Applies an aggregate function over the iterable grouping results into a map based on the specific groupBy function.
`<K,V> com.gs.collections.api.map.MapIterable<K,V>`	`aggregateInPlaceBy(com.gs.collections.api.block.function.Function<? super T,? extends K> groupBy, com.gs.collections.api.block.function.Function0<? extends V> zeroValueFactory, com.gs.collections.api.block.procedure.Procedure2<? super V,? super T> mutatingAggregator)` Applies an aggregate procedure over the iterable grouping results into a Map based on the specific groupBy function.
`com.gs.collections.api.LazyIterable<T>`	`asLazy()` Returns a lazy (deferred) iterable, most likely implemented by calling LazyIterate.adapt(this).
`com.gs.collections.api.LazyIterable<com.gs.collections.api.RichIterable<T>>`	`chunk(int size)` Creates a deferred chunking iterable.
`<V> com.gs.collections.api.LazyIterable<V>`	`collect(com.gs.collections.api.block.function.Function<? super T,? extends V> function)` Creates a deferred iterable for collecting elements from the current iterable.
`com.gs.collections.api.LazyBooleanIterable`	`collectBoolean(com.gs.collections.api.block.function.primitive.BooleanFunction<? super T> booleanFunction)` Returns a lazy BooleanIterable which will transform the underlying iterable data to boolean values based on the booleanFunction.
`com.gs.collections.api.LazyByteIterable`	`collectByte(com.gs.collections.api.block.function.primitive.ByteFunction<? super T> byteFunction)` Returns a lazy ByteIterable which will transform the underlying iterable data to byte values based on the byteFunction.
`com.gs.collections.api.LazyCharIterable`	`collectChar(com.gs.collections.api.block.function.primitive.CharFunction<? super T> charFunction)` Returns a lazy CharIterable which will transform the underlying iterable data to char values based on the charFunction.
`com.gs.collections.api.LazyDoubleIterable`	`collectDouble(com.gs.collections.api.block.function.primitive.DoubleFunction<? super T> doubleFunction)` Returns a lazy DoubleIterable which will transform the underlying iterable data to double values based on the doubleFunction.
`com.gs.collections.api.LazyFloatIterable`	`collectFloat(com.gs.collections.api.block.function.primitive.FloatFunction<? super T> floatFunction)` Returns a lazy FloatIterable which will transform the underlying iterable data to float values based on the floatFunction.
`<V> com.gs.collections.api.LazyIterable<V>`	`collectIf(com.gs.collections.api.block.predicate.Predicate<? super T> predicate, com.gs.collections.api.block.function.Function<? super T,? extends V> function)` Creates a deferred iterable for selecting and collecting elements from the current iterable.
`com.gs.collections.api.LazyIntIterable`	`collectInt(com.gs.collections.api.block.function.primitive.IntFunction<? super T> intFunction)` Returns a lazy IntIterable which will transform the underlying iterable data to int values based on the intFunction.
`com.gs.collections.api.LazyLongIterable`	`collectLong(com.gs.collections.api.block.function.primitive.LongFunction<? super T> longFunction)` Returns a lazy LongIterable which will transform the underlying iterable data to long values based on the longFunction.
`com.gs.collections.api.LazyShortIterable`	`collectShort(com.gs.collections.api.block.function.primitive.ShortFunction<? super T> shortFunction)` Returns a lazy ShortIterable which will transform the underlying iterable data to short values based on the shortFunction.
`<P,V> com.gs.collections.api.LazyIterable<V>`	`collectWith(com.gs.collections.api.block.function.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.
`com.gs.collections.api.LazyIterable<T>`	`concatenate(java.lang.Iterable<T> iterable)` Creates a deferred iterable that will join this iterable with the specified iterable.
`com.gs.collections.api.LazyIterable<T>`	`distinct()` Creates a deferred distinct iterable to get distinct elements from the current iterable.
`com.gs.collections.api.LazyIterable<T>`	`drop(int count)` Creates a deferred drop iterable for the current iterable using the specified count as the limit.
`<V> com.gs.collections.api.LazyIterable<V>`	`flatCollect(com.gs.collections.api.block.function.Function<? super T,? extends java.lang.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.
`<V> com.gs.collections.api.multimap.Multimap<V,T>`	`groupBy(com.gs.collections.api.block.function.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> com.gs.collections.api.multimap.Multimap<V,T>`	`groupByEach(com.gs.collections.api.block.function.Function<? super T,? extends java.lang.Iterable<V>> function)` Similar to `RichIterable.groupBy(Function)`, except the result of evaluating function will return a collection of keys for each value.
`<V> com.gs.collections.api.map.MapIterable<V,T>`	`groupByUniqueKey(com.gs.collections.api.block.function.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 java.util.Collection<T>> R`	`into(R target)` Iterates over this iterable adding all elements into the target collection.
`boolean`	`isEmpty()` Returns true if this iterable has zero items.
`com.gs.collections.api.partition.list.PartitionMutableList<T>`	`partition(com.gs.collections.api.block.predicate.Predicate<? super T> predicate)` Filters a collection into a PartitionedIterable based on the evaluation of the predicate.
`<P> com.gs.collections.api.partition.list.PartitionMutableList<T>`	`partitionWith(com.gs.collections.api.block.predicate.Predicate2<? super T,? super P> predicate, P parameter)` Filters a collection into a PartitionIterable based on the evaluation of the predicate.
`com.gs.collections.api.LazyIterable<T>`	`reject(com.gs.collections.api.block.predicate.Predicate<? super T> predicate)` Creates a deferred iterable for rejecting elements from the current iterable.
`<P> com.gs.collections.api.LazyIterable<T>`	`rejectWith(com.gs.collections.api.block.predicate.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`.
`com.gs.collections.api.LazyIterable<T>`	`select(com.gs.collections.api.block.predicate.Predicate<? super T> predicate)` Creates a deferred iterable for selecting elements from the current iterable.
`<S> com.gs.collections.api.LazyIterable<S>`	`selectInstancesOf(java.lang.Class<S> clazz)` Returns all elements of the source collection that are instances of the Class `clazz`.
`<P> com.gs.collections.api.LazyIterable<T>`	`selectWith(com.gs.collections.api.block.predicate.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.
`com.gs.collections.api.LazyIterable<T>`	`take(int count)` Creates a deferred take iterable for the current iterable using the specified count as the limit.
`com.gs.collections.api.LazyIterable<T>`	`tap(com.gs.collections.api.block.procedure.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.
`com.gs.collections.api.stack.MutableStack<T>`	`toStack()`
`<S> com.gs.collections.api.LazyIterable<com.gs.collections.api.tuple.Pair<T,S>>`	`zip(java.lang.Iterable<S> that)` Creates a deferred zip iterable.
`com.gs.collections.api.LazyIterable<com.gs.collections.api.tuple.Pair<T,java.lang.Integer>>`	`zipWithIndex()` Creates a deferred zipWithIndex iterable.

Methods inherited from class com.gs.collections.impl.AbstractRichIterable
allSatisfy, allSatisfyWith, anySatisfy, anySatisfyWith, appendString, appendString, appendString, collect, collectBoolean, collectByte, collectChar, collectDouble, collectFloat, collectIf, collectInt, collectLong, collectShort, collectWith, contains, containsAll, containsAllArguments, containsAllIterable, count, countWith, detect, detectIfNone, detectWith, detectWithIfNone, flatCollect, forEach, forEachWith, forEachWithIndex, groupBy, groupByEach, groupByUniqueKey, injectInto, injectInto, injectInto, injectInto, injectInto, makeString, makeString, makeString, max, max, maxBy, min, min, minBy, noneSatisfy, noneSatisfyWith, notEmpty, reject, rejectWith, select, selectWith, sumByDouble, sumByFloat, sumByInt, sumByLong, sumOfDouble, sumOfFloat, sumOfInt, sumOfLong, toArray, toBag, toList, toMap, toSet, toSortedBag, toSortedBag, toSortedBagBy, toSortedList, toSortedList, toSortedListBy, toSortedMap, toSortedMap, toSortedSet, toSortedSet, toSortedSetBy, toString, zip, zipWithIndex

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.gs.collections.api.RichIterable
allSatisfy, allSatisfyWith, anySatisfy, anySatisfyWith, appendString, appendString, appendString, collect, collectBoolean, collectByte, collectChar, collectDouble, collectFloat, collectIf, collectInt, collectLong, collectShort, collectWith, contains, containsAll, containsAllArguments, containsAllIterable, count, countWith, detect, detectIfNone, detectWith, detectWithIfNone, each, flatCollect, groupBy, groupByEach, groupByUniqueKey, injectInto, injectInto, injectInto, injectInto, injectInto, makeString, makeString, makeString, max, max, maxBy, min, min, minBy, noneSatisfy, noneSatisfyWith, notEmpty, reject, rejectWith, select, selectWith, sumByDouble, sumByFloat, sumByInt, sumByLong, sumOfDouble, sumOfFloat, sumOfInt, sumOfLong, toArray, toBag, toList, toMap, toSet, toSortedBag, toSortedBag, toSortedBagBy, toSortedList, toSortedList, toSortedListBy, toSortedMap, toSortedMap, toSortedSet, toSortedSet, toSortedSetBy, toString, zip, zipWithIndex

Methods inherited from interface com.gs.collections.api.InternalIterable
forEach, forEachWith, forEachWithIndex

Methods inherited from interface java.lang.Iterable
iterator

- Constructor Detail
  - AbstractLazyIterable
```
public AbstractLazyIterable()
```
- Method Detail
  - asLazy
```
public com.gs.collections.api.LazyIterable<T> asLazy()
```
    Description copied from interface: com.gs.collections.api.RichIterable
    
    Returns a lazy (deferred) iterable, most likely implemented by calling LazyIterate.adapt(this).
    
    Specified by:
    
    asLazy in interface com.gs.collections.api.RichIterable<T>
    
    Overrides:
    
    asLazy in class AbstractRichIterable<T>
  - into
```
public <R extends java.util.Collection<T>> R into(R target)
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Iterates over this iterable adding all elements into the target collection.
    
    Specified by:
    
    into in interface com.gs.collections.api.LazyIterable<T>
  - toArray
```
public <E> E[] toArray(E[] array)
```
    Description copied from interface: com.gs.collections.api.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 com.gs.collections.api.RichIterable<T>
    
    Overrides:
    
    toArray in class AbstractRichIterable<T>
    
    See Also:
    Collection.toArray(Object[])
  - size
```
public int size()
```
    Description copied from interface: com.gs.collections.api.RichIterable
    
    Returns the number of items in this iterable.
    
    Specified by:
    
    size in interface com.gs.collections.api.RichIterable<T>
  - isEmpty
```
public boolean isEmpty()
```
    Description copied from interface: com.gs.collections.api.RichIterable
    
    Returns true if this iterable has zero items.
    
    Specified by:
    
    isEmpty in interface com.gs.collections.api.RichIterable<T>
    
    Overrides:
    
    isEmpty in class AbstractRichIterable<T>
  - getFirst
```
public T getFirst()
```
    Description copied from interface: com.gs.collections.api.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 com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    getFirst in interface com.gs.collections.api.RichIterable<T>
  - getLast
```
public T getLast()
```
    Description copied from interface: com.gs.collections.api.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 com.gs.collections.api.RichIterable<T>
  - select
```
public com.gs.collections.api.LazyIterable<T> select(com.gs.collections.api.block.predicate.Predicate<? super T> predicate)
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Creates a deferred iterable for selecting elements from the current iterable.
    
    Specified by:
    
    select in interface com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    select in interface com.gs.collections.api.RichIterable<T>
  - selectWith
```
public <P> com.gs.collections.api.LazyIterable<T> selectWith(com.gs.collections.api.block.predicate.Predicate2<? super T,? super P> predicate,
                                                    P parameter)
```
    Description copied from interface: com.gs.collections.api.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 com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    selectWith in interface com.gs.collections.api.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 com.gs.collections.api.LazyIterable<T> reject(com.gs.collections.api.block.predicate.Predicate<? super T> predicate)
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Creates a deferred iterable for rejecting elements from the current iterable.
    
    Specified by:
    
    reject in interface com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    reject in interface com.gs.collections.api.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> com.gs.collections.api.LazyIterable<T> rejectWith(com.gs.collections.api.block.predicate.Predicate2<? super T,? super P> predicate,
                                                    P parameter)
```
    Description copied from interface: com.gs.collections.api.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 com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    rejectWith in interface com.gs.collections.api.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 com.gs.collections.api.partition.list.PartitionMutableList<T> partition(com.gs.collections.api.block.predicate.Predicate<? super T> predicate)
```
    Description copied from interface: com.gs.collections.api.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 com.gs.collections.api.RichIterable<T>
  - partitionWith
```
public <P> com.gs.collections.api.partition.list.PartitionMutableList<T> partitionWith(com.gs.collections.api.block.predicate.Predicate2<? super T,? super P> predicate,
                                                                              P parameter)
```
    Description copied from interface: com.gs.collections.api.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 com.gs.collections.api.RichIterable<T>
  - selectInstancesOf
```
public <S> com.gs.collections.api.LazyIterable<S> selectInstancesOf(java.lang.Class<S> clazz)
```
    Description copied from interface: com.gs.collections.api.RichIterable
    
    Returns all elements of the source collection that are instances of the Class clazz.
    
    Specified by:
    
    selectInstancesOf in interface com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    selectInstancesOf in interface com.gs.collections.api.RichIterable<T>
  - collect
```
public <V> com.gs.collections.api.LazyIterable<V> collect(com.gs.collections.api.block.function.Function<? super T,? extends V> function)
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Creates a deferred iterable for collecting elements from the current iterable.
    
    Specified by:
    
    collect in interface com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    collect in interface com.gs.collections.api.RichIterable<T>
  - collectBoolean
```
public com.gs.collections.api.LazyBooleanIterable collectBoolean(com.gs.collections.api.block.function.primitive.BooleanFunction<? super T> booleanFunction)
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Returns a lazy BooleanIterable which will transform the underlying iterable data to boolean values based on the booleanFunction.
    
    Specified by:
    
    collectBoolean in interface com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    collectBoolean in interface com.gs.collections.api.RichIterable<T>
  - collectByte
```
public com.gs.collections.api.LazyByteIterable collectByte(com.gs.collections.api.block.function.primitive.ByteFunction<? super T> byteFunction)
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Returns a lazy ByteIterable which will transform the underlying iterable data to byte values based on the byteFunction.
    
    Specified by:
    
    collectByte in interface com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    collectByte in interface com.gs.collections.api.RichIterable<T>
  - collectChar
```
public com.gs.collections.api.LazyCharIterable collectChar(com.gs.collections.api.block.function.primitive.CharFunction<? super T> charFunction)
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Returns a lazy CharIterable which will transform the underlying iterable data to char values based on the charFunction.
    
    Specified by:
    
    collectChar in interface com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    collectChar in interface com.gs.collections.api.RichIterable<T>
  - collectDouble
```
public com.gs.collections.api.LazyDoubleIterable collectDouble(com.gs.collections.api.block.function.primitive.DoubleFunction<? super T> doubleFunction)
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Returns a lazy DoubleIterable which will transform the underlying iterable data to double values based on the doubleFunction.
    
    Specified by:
    
    collectDouble in interface com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    collectDouble in interface com.gs.collections.api.RichIterable<T>
  - collectFloat
```
public com.gs.collections.api.LazyFloatIterable collectFloat(com.gs.collections.api.block.function.primitive.FloatFunction<? super T> floatFunction)
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Returns a lazy FloatIterable which will transform the underlying iterable data to float values based on the floatFunction.
    
    Specified by:
    
    collectFloat in interface com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    collectFloat in interface com.gs.collections.api.RichIterable<T>
  - collectInt
```
public com.gs.collections.api.LazyIntIterable collectInt(com.gs.collections.api.block.function.primitive.IntFunction<? super T> intFunction)
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Returns a lazy IntIterable which will transform the underlying iterable data to int values based on the intFunction.
    
    Specified by:
    
    collectInt in interface com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    collectInt in interface com.gs.collections.api.RichIterable<T>
  - collectLong
```
public com.gs.collections.api.LazyLongIterable collectLong(com.gs.collections.api.block.function.primitive.LongFunction<? super T> longFunction)
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Returns a lazy LongIterable which will transform the underlying iterable data to long values based on the longFunction.
    
    Specified by:
    
    collectLong in interface com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    collectLong in interface com.gs.collections.api.RichIterable<T>
  - collectShort
```
public com.gs.collections.api.LazyShortIterable collectShort(com.gs.collections.api.block.function.primitive.ShortFunction<? super T> shortFunction)
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Returns a lazy ShortIterable which will transform the underlying iterable data to short values based on the shortFunction.
    
    Specified by:
    
    collectShort in interface com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    collectShort in interface com.gs.collections.api.RichIterable<T>
  - collectWith
```
public <P,V> com.gs.collections.api.LazyIterable<V> collectWith(com.gs.collections.api.block.function.Function2<? super T,? super P,? extends V> function,
                                                       P parameter)
```
    Description copied from interface: com.gs.collections.api.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 com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    collectWith in interface com.gs.collections.api.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> com.gs.collections.api.LazyIterable<V> flatCollect(com.gs.collections.api.block.function.Function<? super T,? extends java.lang.Iterable<V>> function)
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Creates a deferred flattening iterable for the current iterable.
    
    Specified by:
    
    flatCollect in interface com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    flatCollect in interface com.gs.collections.api.RichIterable<T>
    
    Parameters:
    function - The Function to apply
    
    Returns:
    a new flattened collection produced by applying the given function
  - concatenate
```
public com.gs.collections.api.LazyIterable<T> concatenate(java.lang.Iterable<T> iterable)
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Creates a deferred iterable that will join this iterable with the specified iterable.
    
    Specified by:
    
    concatenate in interface com.gs.collections.api.LazyIterable<T>
  - collectIf
```
public <V> com.gs.collections.api.LazyIterable<V> collectIf(com.gs.collections.api.block.predicate.Predicate<? super T> predicate,
                                                   com.gs.collections.api.block.function.Function<? super T,? extends V> function)
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Creates a deferred iterable for selecting and collecting elements from the current iterable.
    
    Specified by:
    
    collectIf in interface com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    collectIf in interface com.gs.collections.api.RichIterable<T>
  - take
```
public com.gs.collections.api.LazyIterable<T> take(int count)
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Creates a deferred take iterable for the current iterable using the specified count as the limit.
    
    Specified by:
    
    take in interface com.gs.collections.api.LazyIterable<T>
  - drop
```
public com.gs.collections.api.LazyIterable<T> drop(int count)
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Creates a deferred drop iterable for the current iterable using the specified count as the limit.
    
    Specified by:
    
    drop in interface com.gs.collections.api.LazyIterable<T>
  - distinct
```
public com.gs.collections.api.LazyIterable<T> distinct()
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Creates a deferred distinct iterable to get distinct elements from the current iterable.
    
    Specified by:
    
    distinct in interface com.gs.collections.api.LazyIterable<T>
  - toStack
```
public com.gs.collections.api.stack.MutableStack<T> toStack()
```
  - groupBy
```
public <V> com.gs.collections.api.multimap.Multimap<V,T> groupBy(com.gs.collections.api.block.function.Function<? super T,? extends V> function)
```
    Description copied from interface: com.gs.collections.api.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 value(Person person)
         {
             return person.getLastName();
         }
     });
 
```
    Specified by:
    
    groupBy in interface com.gs.collections.api.RichIterable<T>
  - groupByEach
```
public <V> com.gs.collections.api.multimap.Multimap<V,T> groupByEach(com.gs.collections.api.block.function.Function<? super T,? extends java.lang.Iterable<V>> function)
```
    Description copied from interface: com.gs.collections.api.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 com.gs.collections.api.RichIterable<T>
  - groupByUniqueKey
```
public <V> com.gs.collections.api.map.MapIterable<V,T> groupByUniqueKey(com.gs.collections.api.block.function.Function<? super T,? extends V> function)
```
    Description copied from interface: com.gs.collections.api.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 com.gs.collections.api.RichIterable<T>
    
    See Also:
    RichIterable.groupBy(Function)
  - zip
```
public <S> com.gs.collections.api.LazyIterable<com.gs.collections.api.tuple.Pair<T,S>> zip(java.lang.Iterable<S> that)
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Creates a deferred zip iterable.
    
    Specified by:
    
    zip in interface com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    zip in interface com.gs.collections.api.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 com.gs.collections.api.LazyIterable<com.gs.collections.api.tuple.Pair<T,java.lang.Integer>> zipWithIndex()
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Creates a deferred zipWithIndex iterable.
    
    Specified by:
    
    zipWithIndex in interface com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    zipWithIndex in interface com.gs.collections.api.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 com.gs.collections.api.LazyIterable<com.gs.collections.api.RichIterable<T>> chunk(int size)
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Creates a deferred chunking iterable.
    
    Specified by:
    
    chunk in interface com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    chunk in interface com.gs.collections.api.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 com.gs.collections.api.LazyIterable<T> tap(com.gs.collections.api.block.procedure.Procedure<? super T> procedure)
```
    Description copied from interface: com.gs.collections.api.LazyIterable
    
    Creates a deferred tap iterable.
    
    Specified by:
    
    tap in interface com.gs.collections.api.LazyIterable<T>
    
    Specified by:
    
    tap in interface com.gs.collections.api.RichIterable<T>
    
    See Also:
    RichIterable.each(Procedure), InternalIterable.forEach(Procedure)
  - aggregateInPlaceBy
```
public <K,V> com.gs.collections.api.map.MapIterable<K,V> aggregateInPlaceBy(com.gs.collections.api.block.function.Function<? super T,? extends K> groupBy,
                                                                   com.gs.collections.api.block.function.Function0<? extends V> zeroValueFactory,
                                                                   com.gs.collections.api.block.procedure.Procedure2<? super V,? super T> mutatingAggregator)
```
    Description copied from interface: com.gs.collections.api.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 com.gs.collections.api.RichIterable<T>
  - aggregateBy
```
public <K,V> com.gs.collections.api.map.MapIterable<K,V> aggregateBy(com.gs.collections.api.block.function.Function<? super T,? extends K> groupBy,
                                                            com.gs.collections.api.block.function.Function0<? extends V> zeroValueFactory,
                                                            com.gs.collections.api.block.function.Function2<? super V,? super T,? extends V> nonMutatingAggregator)
```
    Description copied from interface: com.gs.collections.api.RichIterable
    
    Applies an aggregate function over the iterable grouping results into a map based on the specific groupBy function. Aggregate results are allowed to be immutable as they will be replaced in place in the map. A second function specifies the initial "zero" aggregate value to work with (i.e. Integer.valueOf(0)).
    
    Specified by:
    
    aggregateBy in interface com.gs.collections.api.RichIterable<T>

Class AbstractLazyIterable<T>

Constructor Summary

Method Summary

Methods inherited from class com.gs.collections.impl.AbstractRichIterable

Methods inherited from class java.lang.Object

Methods inherited from interface com.gs.collections.api.RichIterable

Methods inherited from interface com.gs.collections.api.InternalIterable

Methods inherited from interface java.lang.Iterable

Constructor Detail

AbstractLazyIterable

Method Detail

asLazy

into

toArray

size

isEmpty

getFirst

getLast

select

selectWith

reject

rejectWith

partition

partitionWith

selectInstancesOf

collect

collectBoolean

collectByte

collectChar

collectDouble

collectFloat

collectInt

collectLong

collectShort

collectWith

flatCollect

concatenate

collectIf

take

drop

distinct

toStack

groupBy

groupByEach

groupByUniqueKey

zip

zipWithIndex

chunk

tap

aggregateInPlaceBy

aggregateBy