com.gs.collections.impl.bag.mutable

Class MultiReaderHashBag<T>

java.lang.Object

com.gs.collections.impl.collection.mutable.AbstractMultiReaderMutableCollection<T>

com.gs.collections.impl.bag.mutable.MultiReaderHashBag<T>

All Implemented Interfaces:

com.gs.collections.api.bag.Bag<T>, com.gs.collections.api.bag.MutableBag<T>, com.gs.collections.api.bag.MutableBagIterable<T>, com.gs.collections.api.bag.UnsortedBag<T>, com.gs.collections.api.collection.MutableCollection<T>, com.gs.collections.api.InternalIterable<T>, com.gs.collections.api.RichIterable<T>, java.io.Externalizable, java.io.Serializable, java.lang.Iterable<T>, java.util.Collection<T>

public final class MultiReaderHashBag<T>
extends AbstractMultiReaderMutableCollection<T>
implements java.io.Externalizable, com.gs.collections.api.bag.MutableBag<T>

MultiReaderHashBag provides a thread-safe wrapper around a HashBag, using a ReentrantReadWriteLock. In order to provide true thread-safety, MultiReaderHashBag does not implement iterator() as this method requires an external lock to be taken to provide thread-safe iteration. All of these methods are available however, if you use the withReadLockAndDelegate() or withWriteLockAndDelegate() methods. Both of these methods take a parameter of type Procedure, and a wrapped version of the underlying HashBag is returned. This wrapper guarantees that no external pointer can ever reference the underlying HashBag outside of a locked procedure. In the case of the read lock method, an Unmodifiable version of the collection is offered, which will throw UnsupportedOperationExceptions on any write methods like add or remove.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.gs.collections.impl.collection.mutable.AbstractMultiReaderMutableCollection

AbstractMultiReaderMutableCollection.UntouchableMutableCollection<T>

Constructor Summary

Constructors

Constructor and Description
MultiReaderHashBag() Deprecated. Empty default constructor used for serialization.

Method Summary

Methods

Modifier and Type	Method and Description
void	addOccurrences(T item, int occurrences)
com.gs.collections.api.bag.MutableBag<T>	asSynchronized() Returns a synchronized (thread-safe) collection backed by this collection.
com.gs.collections.api.bag.MutableBag<T>	asUnmodifiable() Returns an unmodifiable view of this collection.
com.gs.collections.api.list.MutableList<com.gs.collections.api.tuple.primitive.ObjectIntPair<T>>	bottomOccurrences(int count) Returns the count least frequently occurring items.
com.gs.collections.api.RichIterable<com.gs.collections.api.RichIterable<T>>	chunk(int size) Partitions elements in fixed size chunks.
<V> com.gs.collections.api.bag.MutableBag<V>	collect(com.gs.collections.api.block.function.Function<? super T,? extends V> function) Returns a new collection with the results of applying the specified function on each element of the source collection.
com.gs.collections.api.bag.primitive.MutableBooleanBag	collectBoolean(com.gs.collections.api.block.function.primitive.BooleanFunction<? super T> booleanFunction) Returns a new primitive boolean iterable with the results of applying the specified function on each element of the source collection.
com.gs.collections.api.bag.primitive.MutableByteBag	collectByte(com.gs.collections.api.block.function.primitive.ByteFunction<? super T> byteFunction) Returns a new primitive byte iterable with the results of applying the specified function on each element of the source collection.
com.gs.collections.api.bag.primitive.MutableCharBag	collectChar(com.gs.collections.api.block.function.primitive.CharFunction<? super T> charFunction) Returns a new primitive char iterable with the results of applying the specified function on each element of the source collection.
com.gs.collections.api.bag.primitive.MutableDoubleBag	collectDouble(com.gs.collections.api.block.function.primitive.DoubleFunction<? super T> doubleFunction) Returns a new primitive double iterable with the results of applying the specified function on each element of the source collection.
com.gs.collections.api.bag.primitive.MutableFloatBag	collectFloat(com.gs.collections.api.block.function.primitive.FloatFunction<? super T> floatFunction) Returns a new primitive float iterable with the results of applying the specified function on each element of the source collection.
<V> com.gs.collections.api.bag.MutableBag<V>	collectIf(com.gs.collections.api.block.predicate.Predicate<? super T> predicate, com.gs.collections.api.block.function.Function<? super T,? extends V> function) Returns a new collection with the results of applying the specified function on each element of the source collection, but only for those elements which return true upon evaluation of the predicate.
com.gs.collections.api.bag.primitive.MutableIntBag	collectInt(com.gs.collections.api.block.function.primitive.IntFunction<? super T> intFunction) Returns a new primitive int iterable with the results of applying the specified function on each element of the source collection.
com.gs.collections.api.bag.primitive.MutableLongBag	collectLong(com.gs.collections.api.block.function.primitive.LongFunction<? super T> longFunction) Returns a new primitive long iterable with the results of applying the specified function on each element of the source collection.
com.gs.collections.api.bag.primitive.MutableShortBag	collectShort(com.gs.collections.api.block.function.primitive.ShortFunction<? super T> shortFunction) Returns a new primitive short iterable with the results of applying the specified function on each element of the source collection.
<P,V> com.gs.collections.api.bag.MutableBag<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.
boolean	equals(java.lang.Object o) Two bagsb1 and b2 are equal if m1.toMapOfItemToCount().equals(m2.toMapOfItemToCount()).
<V> com.gs.collections.api.bag.MutableBag<V>	flatCollect(com.gs.collections.api.block.function.Function<? super T,? extends java.lang.Iterable<V>> function) flatCollect is a special case of RichIterable.collect(Function).
void	forEachWithOccurrences(com.gs.collections.api.block.procedure.primitive.ObjectIntProcedure<? super T> procedure) For each distinct item, with the number of occurrences, execute the specified procedure.
protected com.gs.collections.api.bag.MutableBag<T>	getDelegate()
protected java.util.concurrent.locks.ReadWriteLock	getLock()
<V> com.gs.collections.api.multimap.bag.MutableBagMultimap<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.bag.MutableBagMultimap<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.MutableMap<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.
int	hashCode() Returns the hash code for this Bag, defined as this.Bag.toMapOfItemToCount().hashCode().
static <T> MultiReaderHashBag<T>	newBag()
static <T> MultiReaderHashBag<T>	newBag(int capacity)
static <T> MultiReaderHashBag<T>	newBag(java.lang.Iterable<T> iterable)
static <T> MultiReaderHashBag<T>	newBagWith(T... elements)
com.gs.collections.api.bag.MutableBag<T>	newEmpty() Creates a new empty mutable version of the same collection type.
int	occurrencesOf(java.lang.Object item) The occurrences of a distinct item in the bag.
com.gs.collections.api.partition.bag.PartitionMutableBag<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.bag.PartitionMutableBag<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.
void	readExternal(java.io.ObjectInput in)
com.gs.collections.api.bag.MutableBag<T>	reject(com.gs.collections.api.block.predicate.Predicate<? super T> predicate) Returns all elements of the source collection that return false when evaluating of the predicate.
<P> com.gs.collections.api.bag.MutableBag<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.
boolean	removeOccurrences(java.lang.Object item, int occurrences)
com.gs.collections.api.bag.MutableBag<T>	select(com.gs.collections.api.block.predicate.Predicate<? super T> predicate) Returns all elements of the source collection that return true when evaluating the predicate.
com.gs.collections.api.bag.MutableBag<T>	selectByOccurrences(com.gs.collections.api.block.predicate.primitive.IntPredicate predicate) Returns all elements of the bag that have a number of occurrences that satisfy the predicate.
<S> com.gs.collections.api.bag.MutableBag<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.bag.MutableBag<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.
boolean	setOccurrences(T item, int occurrences)
int	sizeDistinct() The size of the Bag when counting only distinct elements.
com.gs.collections.api.bag.MutableBag<T>	tap(com.gs.collections.api.block.procedure.Procedure<? super T> procedure) Executes the Procedure for each element in the iterable and returns this.
com.gs.collections.api.bag.ImmutableBag<T>	toImmutable() Converts the UnsortedBag to an ImmutableBag.
com.gs.collections.api.map.MutableMap<T,java.lang.Integer>	toMapOfItemToCount() Converts the Bag to a Map of the Item type to its count as an Integer.
com.gs.collections.api.list.MutableList<com.gs.collections.api.tuple.primitive.ObjectIntPair<T>>	topOccurrences(int count) Returns the count most frequently occurring items.
java.lang.String	toStringOfItemToCount() Returns a string representation of this bag.
com.gs.collections.api.bag.MutableBag<T>	with(T element) This method allows mutable and fixed size collections the ability to add elements to their existing elements.
com.gs.collections.api.bag.MutableBag<T>	withAll(java.lang.Iterable<? extends T> elements) This method allows mutable and fixed size collections the ability to add multiple elements to their existing elements.
com.gs.collections.api.bag.MutableBag<T>	without(T element) This method allows mutable and fixed size collections the ability to remove elements from their existing elements.
com.gs.collections.api.bag.MutableBag<T>	withoutAll(java.lang.Iterable<? extends T> elements) This method allows mutable and fixed size collections the ability to remove multiple elements from their existing elements.
void	withReadLockAndDelegate(com.gs.collections.api.block.procedure.Procedure<com.gs.collections.api.bag.MutableBag<T>> procedure)
void	withWriteLockAndDelegate(com.gs.collections.api.block.procedure.Procedure<com.gs.collections.api.bag.MutableBag<T>> procedure)
void	writeExternal(java.io.ObjectOutput out)
<S> com.gs.collections.api.bag.MutableBag<com.gs.collections.api.tuple.Pair<T,S>>	zip(java.lang.Iterable<S> that) Deprecated. in 6.0. Use OrderedIterable.zip(Iterable) instead.
com.gs.collections.api.set.MutableSet<com.gs.collections.api.tuple.Pair<T,java.lang.Integer>>	zipWithIndex() Deprecated. in 6.0. Use OrderedIterable.zipWithIndex() instead.

Methods inherited from class com.gs.collections.impl.collection.mutable.AbstractMultiReaderMutableCollection

acquireReadLock, acquireWriteLock, add, addAll, addAllIterable, aggregateBy, aggregateInPlaceBy, allSatisfy, allSatisfyWith, anySatisfy, anySatisfyWith, appendString, appendString, appendString, asLazy, clear, collect, collectBoolean, collectByte, collectChar, collectDouble, collectFloat, collectIf, collectInt, collectLong, collectShort, collectWith, contains, containsAll, containsAllArguments, containsAllIterable, count, countWith, detect, detectIfNone, detectWith, detectWithIfNone, each, flatCollect, forEach, forEachWith, forEachWithIndex, getFirst, getLast, groupBy, groupByEach, groupByUniqueKey, injectInto, injectInto, injectInto, injectInto, injectInto, injectIntoWith, isEmpty, iterator, makeString, makeString, makeString, max, max, maxBy, min, min, minBy, noneSatisfy, noneSatisfyWith, notEmpty, reject, rejectWith, remove, removeAll, removeAllIterable, removeIf, removeIfWith, retainAll, retainAllIterable, select, selectAndRejectWith, selectWith, size, sumByDouble, sumByFloat, sumByInt, sumByLong, sumOfDouble, sumOfFloat, sumOfInt, sumOfLong, toArray, toArray, toBag, toList, toMap, toSet, toSortedBag, toSortedBag, toSortedBagBy, toSortedList, toSortedList, toSortedListBy, toSortedMap, toSortedMap, toSortedSet, toSortedSet, toSortedSetBy, toString, unlockReadLock, unlockWriteLock, withReadLockRun, zip, zipWithIndex

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.gs.collections.api.collection.MutableCollection

addAllIterable, aggregateBy, aggregateInPlaceBy, injectIntoWith, removeAllIterable, removeIf, removeIfWith, retainAllIterable, selectAndRejectWith

Methods inherited from interface java.util.Collection

add, addAll, clear, contains, containsAll, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray

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

allSatisfy, allSatisfyWith, anySatisfy, anySatisfyWith, appendString, appendString, appendString, asLazy, collect, collectBoolean, collectByte, collectChar, collectDouble, collectFloat, collectIf, collectInt, collectLong, collectShort, collectWith, contains, containsAll, containsAllArguments, containsAllIterable, count, countWith, detect, detectIfNone, detectWith, detectWithIfNone, each, flatCollect, getFirst, getLast, groupBy, groupByEach, groupByUniqueKey, injectInto, injectInto, injectInto, injectInto, injectInto, isEmpty, makeString, makeString, makeString, max, max, maxBy, min, min, minBy, noneSatisfy, noneSatisfyWith, notEmpty, reject, rejectWith, select, selectWith, size, sumByDouble, sumByFloat, sumByInt, sumByLong, sumOfDouble, sumOfFloat, sumOfInt, sumOfLong, toArray, 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

Constructor Detail

MultiReaderHashBag

@Deprecated
public MultiReaderHashBag()

Deprecated. Empty default constructor used for serialization.

Method Detail

newBag

public static <T> MultiReaderHashBag<T> newBag()

newBag

public static <T> MultiReaderHashBag<T> newBag(int capacity)

newBag

public static <T> MultiReaderHashBag<T> newBag(java.lang.Iterable<T> iterable)

newBagWith

public static <T> MultiReaderHashBag<T> newBagWith(T... elements)

getDelegate

protected com.gs.collections.api.bag.MutableBag<T> getDelegate()

Specified by:

getDelegate in class AbstractMultiReaderMutableCollection<T>

getLock

protected java.util.concurrent.locks.ReadWriteLock getLock()

Specified by:

getLock in class AbstractMultiReaderMutableCollection<T>

withReadLockAndDelegate

public void withReadLockAndDelegate(com.gs.collections.api.block.procedure.Procedure<com.gs.collections.api.bag.MutableBag<T>> procedure)

withWriteLockAndDelegate

public void withWriteLockAndDelegate(com.gs.collections.api.block.procedure.Procedure<com.gs.collections.api.bag.MutableBag<T>> procedure)

asSynchronized

public com.gs.collections.api.bag.MutableBag<T> asSynchronized()

Description copied from interface: com.gs.collections.api.collection.MutableCollection

Returns a synchronized (thread-safe) collection backed by this collection. In order to guarantee serial access, it is critical that all access to the backing collection is accomplished through the returned collection.

It is imperative that the user manually synchronize on the returned collection when iterating over it using the standard JDK iterator or JDK 5 for loop.

  MutableCollection collection = myCollection.asSynchronized();
     ...
  synchronized(collection)
  {
      Iterator i = c.iterator(); // Must be in the synchronized block
      while (i.hasNext())
         foo(i.next());
  }
 

Failure to follow this advice may result in non-deterministic behavior.

The preferred way of iterating over a synchronized collection is to use the collection.forEach() method which is properly synchronized internally.

  MutableCollection collection = myCollection.asSynchronized();
     ...
  collection.forEach(new Procedure()
  {
      public void value(Object each)
      {
          ...
      }
  });
 

The returned collection does not pass the hashCode and equals operations through to the backing collection, but relies on Object's equals and hashCode methods. This is necessary to preserve the contracts of these operations in the case that the backing collection is a set or a list.

The returned collection will be serializable if this collection is serializable.

Specified by:

asSynchronized in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

asSynchronized in interface com.gs.collections.api.collection.MutableCollection<T>

Returns:

a synchronized view of this collection.

asUnmodifiable

public com.gs.collections.api.bag.MutableBag<T> asUnmodifiable()

Description copied from interface: com.gs.collections.api.collection.MutableCollection

Returns an unmodifiable view of this collection. This method allows modules to provide users with "read-only" access to internal collections. Query operations on the returned collection "read through" to this collection, and attempts to modify the returned collection, whether direct or via its iterator, result in an UnsupportedOperationException.

The returned collection does not pass the hashCode and equals operations through to the backing collection, but relies on Object's equals and hashCode methods. This is necessary to preserve the contracts of these operations in the case that the backing collection is a set or a list.

The returned collection will be serializable if this collection is serializable.

Specified by:

asUnmodifiable in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

asUnmodifiable in interface com.gs.collections.api.collection.MutableCollection<T>

Returns:

an unmodifiable view of this collection.

toImmutable

public com.gs.collections.api.bag.ImmutableBag<T> toImmutable()

Description copied from interface: com.gs.collections.api.bag.UnsortedBag

Converts the UnsortedBag to an ImmutableBag. If the bag is immutable, it returns itself.

Specified by:

toImmutable in interface com.gs.collections.api.bag.Bag<T>

Specified by:

toImmutable in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

toImmutable in interface com.gs.collections.api.collection.MutableCollection<T>

addOccurrences

public void addOccurrences(T item,
                  int occurrences)

Specified by:

addOccurrences in interface com.gs.collections.api.bag.MutableBagIterable<T>

removeOccurrences

public boolean removeOccurrences(java.lang.Object item,
                        int occurrences)

Specified by:

removeOccurrences in interface com.gs.collections.api.bag.MutableBagIterable<T>

setOccurrences

public boolean setOccurrences(T item,
                     int occurrences)

Specified by:

setOccurrences in interface com.gs.collections.api.bag.MutableBagIterable<T>

occurrencesOf

public int occurrencesOf(java.lang.Object item)

Description copied from interface: com.gs.collections.api.bag.Bag

The occurrences of a distinct item in the bag.

Specified by:

occurrencesOf in interface com.gs.collections.api.bag.Bag<T>

sizeDistinct

public int sizeDistinct()

Description copied from interface: com.gs.collections.api.bag.Bag

The size of the Bag when counting only distinct elements.

Specified by:

sizeDistinct in interface com.gs.collections.api.bag.Bag<T>

collect

public <V> com.gs.collections.api.bag.MutableBag<V> collect(com.gs.collections.api.block.function.Function<? super T,? extends V> function)

Description copied from interface: com.gs.collections.api.RichIterable

Returns a new collection with the results of applying the specified function on each element of the source collection. This method is also commonly called transform or map.

Example using a Java 8 lambda expression:

 RichIterable<String> names =
     people.collect(person -> person.getFirstName() + " " + person.getLastName());
 

Example using an anonymous inner class:

 RichIterable<String> names =
     people.collect(new Function<Person, String>()
     {
         public String valueOf(Person person)
         {
             return person.getFirstName() + " " + person.getLastName();
         }
     });
 

Specified by:

collect in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

collect in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

collect in interface com.gs.collections.api.collection.MutableCollection<T>

Specified by:

collect in interface com.gs.collections.api.RichIterable<T>

collectBoolean

public com.gs.collections.api.bag.primitive.MutableBooleanBag collectBoolean(com.gs.collections.api.block.function.primitive.BooleanFunction<? super T> booleanFunction)

Description copied from interface: com.gs.collections.api.RichIterable

Returns a new primitive boolean iterable with the results of applying the specified function on each element of the source collection. This method is also commonly called transform or map.

Example using a Java 8 lambda expression:

 BooleanIterable licenses =
     people.collectBoolean(person -> person.hasDrivingLicense());
 

Example using an anonymous inner class:

 BooleanIterable licenses =
     people.collectBoolean(new BooleanFunction<Person>()
     {
         public boolean booleanValueOf(Person person)
         {
             return person.hasDrivingLicense();
         }
     });
 

Specified by:

collectBoolean in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

collectBoolean in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

collectBoolean in interface com.gs.collections.api.collection.MutableCollection<T>

Specified by:

collectBoolean in interface com.gs.collections.api.RichIterable<T>

collectByte

public com.gs.collections.api.bag.primitive.MutableByteBag collectByte(com.gs.collections.api.block.function.primitive.ByteFunction<? super T> byteFunction)

Description copied from interface: com.gs.collections.api.RichIterable

Returns a new primitive byte iterable with the results of applying the specified function on each element of the source collection. This method is also commonly called transform or map.

Example using a Java 8 lambda expression:

 ByteIterable bytes =
     people.collectByte(person -> person.getCode());
 

Example using an anonymous inner class:

 ByteIterable bytes =
     people.collectByte(new ByteFunction<Person>()
     {
         public byte byteValueOf(Person person)
         {
             return person.getCode();
         }
     });
 

Specified by:

collectByte in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

collectByte in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

collectByte in interface com.gs.collections.api.collection.MutableCollection<T>

Specified by:

collectByte in interface com.gs.collections.api.RichIterable<T>

collectChar

public com.gs.collections.api.bag.primitive.MutableCharBag collectChar(com.gs.collections.api.block.function.primitive.CharFunction<? super T> charFunction)

Description copied from interface: com.gs.collections.api.RichIterable

Returns a new primitive char iterable with the results of applying the specified function on each element of the source collection. This method is also commonly called transform or map.

Example using a Java 8 lambda expression:

 CharIterable chars =
     people.collectChar(person -> person.getMiddleInitial());
 

Example using an anonymous inner class:

 CharIterable chars =
     people.collectChar(new CharFunction<Person>()
     {
         public char charValueOf(Person person)
         {
             return person.getMiddleInitial();
         }
     });
 

Specified by:

collectChar in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

collectChar in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

collectChar in interface com.gs.collections.api.collection.MutableCollection<T>

Specified by:

collectChar in interface com.gs.collections.api.RichIterable<T>

collectDouble

public com.gs.collections.api.bag.primitive.MutableDoubleBag collectDouble(com.gs.collections.api.block.function.primitive.DoubleFunction<? super T> doubleFunction)

Description copied from interface: com.gs.collections.api.RichIterable

Returns a new primitive double iterable with the results of applying the specified function on each element of the source collection. This method is also commonly called transform or map.

Example using a Java 8 lambda expression:

 DoubleIterable doubles =
     people.collectDouble(person -> person.getMilesFromNorthPole());
 

Example using an anonymous inner class:

 DoubleIterable doubles =
     people.collectDouble(new DoubleFunction<Person>()
     {
         public double doubleValueOf(Person person)
         {
             return person.getMilesFromNorthPole();
         }
     });
 

Specified by:

collectDouble in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

collectDouble in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

collectDouble in interface com.gs.collections.api.collection.MutableCollection<T>

Specified by:

collectDouble in interface com.gs.collections.api.RichIterable<T>

collectFloat

public com.gs.collections.api.bag.primitive.MutableFloatBag collectFloat(com.gs.collections.api.block.function.primitive.FloatFunction<? super T> floatFunction)

Description copied from interface: com.gs.collections.api.RichIterable

Returns a new primitive float iterable with the results of applying the specified function on each element of the source collection. This method is also commonly called transform or map.

Example using a Java 8 lambda expression:

 FloatIterable floats =
     people.collectFloat(person -> person.getHeightInInches());
 

Example using an anonymous inner class:

 FloatIterable floats =
     people.collectFloat(new FloatFunction<Person>()
     {
         public float floatValueOf(Person person)
         {
             return person.getHeightInInches();
         }
     });
 

Specified by:

collectFloat in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

collectFloat in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

collectFloat in interface com.gs.collections.api.collection.MutableCollection<T>

Specified by:

collectFloat in interface com.gs.collections.api.RichIterable<T>

collectInt

public com.gs.collections.api.bag.primitive.MutableIntBag collectInt(com.gs.collections.api.block.function.primitive.IntFunction<? super T> intFunction)

Description copied from interface: com.gs.collections.api.RichIterable

Returns a new primitive int iterable with the results of applying the specified function on each element of the source collection. This method is also commonly called transform or map.

Example using a Java 8 lambda expression:

 IntIterable ints =
     people.collectInt(person -> person.getAge());
 

Example using an anonymous inner class:

 IntIterable ints =
     people.collectInt(new IntFunction<Person>()
     {
         public int intValueOf(Person person)
         {
             return person.getAge();
         }
     });
 

Specified by:

collectInt in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

collectInt in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

collectInt in interface com.gs.collections.api.collection.MutableCollection<T>

Specified by:

collectInt in interface com.gs.collections.api.RichIterable<T>

collectLong

public com.gs.collections.api.bag.primitive.MutableLongBag collectLong(com.gs.collections.api.block.function.primitive.LongFunction<? super T> longFunction)

Description copied from interface: com.gs.collections.api.RichIterable

Returns a new primitive long iterable with the results of applying the specified function on each element of the source collection. This method is also commonly called transform or map.

Example using a Java 8 lambda expression:

 LongIterable longs =
     people.collectLong(person -> person.getGuid());
 

Example using an anonymous inner class:

 LongIterable longs =
     people.collectLong(new LongFunction<Person>()
     {
         public long longValueOf(Person person)
         {
             return person.getGuid();
         }
     });
 

Specified by:

collectLong in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

collectLong in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

collectLong in interface com.gs.collections.api.collection.MutableCollection<T>

Specified by:

collectLong in interface com.gs.collections.api.RichIterable<T>

collectShort

public com.gs.collections.api.bag.primitive.MutableShortBag collectShort(com.gs.collections.api.block.function.primitive.ShortFunction<? super T> shortFunction)

Description copied from interface: com.gs.collections.api.RichIterable

Returns a new primitive short iterable with the results of applying the specified function on each element of the source collection. This method is also commonly called transform or map.

Example using a Java 8 lambda expression:

 ShortIterable shorts =
     people.collectShort(person -> person.getNumberOfJunkMailItemsReceivedPerMonth());
 

Example using an anonymous inner class:

 ShortIterable shorts =
     people.collectShort(new ShortFunction<Person>()
     {
         public short shortValueOf(Person person)
         {
             return person.getNumberOfJunkMailItemsReceivedPerMonth();
         }
     });
 

Specified by:

collectShort in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

collectShort in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

collectShort in interface com.gs.collections.api.collection.MutableCollection<T>

Specified by:

collectShort in interface com.gs.collections.api.RichIterable<T>

flatCollect

public <V> com.gs.collections.api.bag.MutableBag<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.RichIterable

flatCollect is a special case of RichIterable.collect(Function). With collect, when the Function returns a collection, the result is a collection of collections. flatCollect outputs a single "flattened" collection instead. This method is commonly called flatMap.

Consider the following example where we have a Person class, and each Person has a list of Address objects. Take the following Function:

 Function<Person, List<Address>> addressFunction = Person::getAddresses;
 MutableList<Person> people = ...;
 

Using collect returns a collection of collections of addresses.

 MutableList<List<Address>> addresses = people.collect(addressFunction);
 

Using flatCollect returns a single flattened list of addresses.

 MutableList<Address> addresses = people.flatCollect(addressFunction);
 

Specified by:

flatCollect in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

flatCollect in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

flatCollect in interface com.gs.collections.api.collection.MutableCollection<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

topOccurrences

public com.gs.collections.api.list.MutableList<com.gs.collections.api.tuple.primitive.ObjectIntPair<T>> topOccurrences(int count)

Description copied from interface: com.gs.collections.api.bag.Bag

Returns the count most frequently occurring items. In the event of a tie, all of the items with the number of occurrences that match the occurrences of the last item will be returned.

Specified by:

topOccurrences in interface com.gs.collections.api.bag.Bag<T>

Specified by:

topOccurrences in interface com.gs.collections.api.bag.MutableBagIterable<T>

bottomOccurrences

public com.gs.collections.api.list.MutableList<com.gs.collections.api.tuple.primitive.ObjectIntPair<T>> bottomOccurrences(int count)

Description copied from interface: com.gs.collections.api.bag.Bag

Returns the count least frequently occurring items. In the event of a tie, all of the items with the number of occurrences that match the occurrences of the last item will be returned.

Specified by:

bottomOccurrences in interface com.gs.collections.api.bag.Bag<T>

Specified by:

bottomOccurrences in interface com.gs.collections.api.bag.MutableBagIterable<T>

collectIf

public <V> com.gs.collections.api.bag.MutableBag<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.RichIterable

Returns a new collection with the results of applying the specified function on each element of the source collection, but only for those elements which return true upon evaluation of the predicate. This is the the optimized equivalent of calling iterable.select(predicate).collect(function).

Example using a Java 8 lambda and method reference:

 RichIterable<String> strings = Lists.mutable.with(1, 2, 3).collectIf(e -> e != null, Object::toString);
 

Example using Predicates factory:

 RichIterable<String> strings = Lists.mutable.with(1, 2, 3).collectIf(Predicates.notNull(), Functions.getToString());
 

Specified by:

collectIf in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

collectIf in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

collectIf in interface com.gs.collections.api.collection.MutableCollection<T>

Specified by:

collectIf in interface com.gs.collections.api.RichIterable<T>

collectWith

public <P,V> com.gs.collections.api.bag.MutableBag<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.bag.MutableBag<T>

Specified by:

collectWith in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

collectWith in interface com.gs.collections.api.collection.MutableCollection<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)

newEmpty

public com.gs.collections.api.bag.MutableBag<T> newEmpty()

Description copied from interface: com.gs.collections.api.collection.MutableCollection

Creates a new empty mutable version of the same collection type. For example, if this instance is a FastList, this method will return a new empty FastList. If the class of this instance is immutable or fixed size (i.e. SingletonList) then a mutable alternative to the class will be provided.

Specified by:

newEmpty in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

newEmpty in interface com.gs.collections.api.collection.MutableCollection<T>

reject

public com.gs.collections.api.bag.MutableBag<T> reject(com.gs.collections.api.block.predicate.Predicate<? super T> predicate)

Description copied from interface: com.gs.collections.api.RichIterable

Returns all elements of the source collection that return false when evaluating of the predicate. This method is also sometimes called filterNot and is the equivalent of calling iterable.select(Predicates.not(predicate)).

Example using a Java 8 lambda expression:

 RichIterable<Person> rejected =
     people.reject(person -> person.person.getLastName().equals("Smith"));
 

Example using an anonymous inner class:

 RichIterable<Person> rejected =
     people.reject(new Predicate<Person>()
     {
         public boolean accept(Person person)
         {
             return person.person.getLastName().equals("Smith");
         }
     });
 

Specified by:

reject in interface com.gs.collections.api.bag.Bag<T>

Specified by:

reject in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

reject in interface com.gs.collections.api.bag.MutableBagIterable<T>

Specified by:

reject in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

reject in interface com.gs.collections.api.collection.MutableCollection<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.bag.MutableBag<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.bag.Bag<T>

Specified by:

rejectWith in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

rejectWith in interface com.gs.collections.api.bag.MutableBagIterable<T>

Specified by:

rejectWith in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

rejectWith in interface com.gs.collections.api.collection.MutableCollection<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)

tap

public com.gs.collections.api.bag.MutableBag<T> tap(com.gs.collections.api.block.procedure.Procedure<? super T> procedure)

Description copied from interface: com.gs.collections.api.RichIterable

Executes the Procedure for each element in the iterable and returns this.

Example using a Java 8 lambda expression:

 RichIterable<Person> tapped =
     people.tap(person -> LOGGER.info(person.getName()));
 

Example using an anonymous inner class:

 RichIterable<Person> tapped =
     people.tap(new Procedure()
     {
         public void value(Person person)
         {
             LOGGER.info(person.getName());
         }
     });
 

Specified by:

tap in interface com.gs.collections.api.bag.Bag<T>

Specified by:

tap in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

tap in interface com.gs.collections.api.bag.MutableBagIterable<T>

Specified by:

tap in interface com.gs.collections.api.collection.MutableCollection<T>

Specified by:

tap in interface com.gs.collections.api.RichIterable<T>

See Also:

RichIterable.each(Procedure), InternalIterable.forEach(Procedure)

select

public com.gs.collections.api.bag.MutableBag<T> select(com.gs.collections.api.block.predicate.Predicate<? super T> predicate)

Description copied from interface: com.gs.collections.api.RichIterable

Returns all elements of the source collection that return true when evaluating the predicate. This method is also commonly called filter.

Example using a Java 8 lambda expression:

 RichIterable<Person> selected =
     people.select(person -> person.getAddress().getCity().equals("London"));
 

Example using an anonymous inner class:

 RichIterable<Person> selected =
     people.select(new Predicate<Person>()
     {
         public boolean accept(Person person)
         {
             return person.getAddress().getCity().equals("London");
         }
     });

Specified by:

select in interface com.gs.collections.api.bag.Bag<T>

Specified by:

select in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

select in interface com.gs.collections.api.bag.MutableBagIterable<T>

Specified by:

select in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

select in interface com.gs.collections.api.collection.MutableCollection<T>

Specified by:

select in interface com.gs.collections.api.RichIterable<T>

selectWith

public <P> com.gs.collections.api.bag.MutableBag<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.bag.Bag<T>

Specified by:

selectWith in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

selectWith in interface com.gs.collections.api.bag.MutableBagIterable<T>

Specified by:

selectWith in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

selectWith in interface com.gs.collections.api.collection.MutableCollection<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)

selectByOccurrences

public com.gs.collections.api.bag.MutableBag<T> selectByOccurrences(com.gs.collections.api.block.predicate.primitive.IntPredicate predicate)

Description copied from interface: com.gs.collections.api.bag.Bag

Returns all elements of the bag that have a number of occurrences that satisfy the predicate.

Specified by:

selectByOccurrences in interface com.gs.collections.api.bag.Bag<T>

Specified by:

selectByOccurrences in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

selectByOccurrences in interface com.gs.collections.api.bag.MutableBagIterable<T>

Specified by:

selectByOccurrences in interface com.gs.collections.api.bag.UnsortedBag<T>

selectInstancesOf

public <S> com.gs.collections.api.bag.MutableBag<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.bag.Bag<T>

Specified by:

selectInstancesOf in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

selectInstancesOf in interface com.gs.collections.api.bag.MutableBagIterable<T>

Specified by:

selectInstancesOf in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

selectInstancesOf in interface com.gs.collections.api.collection.MutableCollection<T>

Specified by:

selectInstancesOf in interface com.gs.collections.api.RichIterable<T>

partition

public com.gs.collections.api.partition.bag.PartitionMutableBag<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.bag.Bag<T>

Specified by:

partition in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

partition in interface com.gs.collections.api.bag.MutableBagIterable<T>

Specified by:

partition in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

partition in interface com.gs.collections.api.collection.MutableCollection<T>

Specified by:

partition in interface com.gs.collections.api.RichIterable<T>

partitionWith

public <P> com.gs.collections.api.partition.bag.PartitionMutableBag<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.bag.Bag<T>

Specified by:

partitionWith in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

partitionWith in interface com.gs.collections.api.bag.MutableBagIterable<T>

Specified by:

partitionWith in interface com.gs.collections.api.collection.MutableCollection<T>

Specified by:

partitionWith in interface com.gs.collections.api.RichIterable<T>

with

public com.gs.collections.api.bag.MutableBag<T> with(T element)

Description copied from interface: com.gs.collections.api.collection.MutableCollection

This method allows mutable and fixed size collections the ability to add elements to their existing elements. In order to support fixed size a new instance of a collection would have to be returned taking the elements of the original collection and appending the new element to form the new collection. In the case of mutable collections, the original collection is modified, and is returned. In order to use this method properly with mutable and fixed size collections the following approach must be taken:

 MutableCollection list;
 list = list.with("1");
 list = list.with("2");
 return list;
 

In the case of FixedSizeCollection a new instance of MutableCollection will be returned by with, and any variables that previously referenced the original collection will need to be redirected to reference the new instance. For other MutableCollection types you will replace the reference to collection with the same collection, since the instance will return "this" after calling add on itself.

Specified by:

with in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

with in interface com.gs.collections.api.bag.MutableBagIterable<T>

Specified by:

with in interface com.gs.collections.api.collection.MutableCollection<T>

See Also:

Collection.add(Object)

without

public com.gs.collections.api.bag.MutableBag<T> without(T element)

Description copied from interface: com.gs.collections.api.collection.MutableCollection

This method allows mutable and fixed size collections the ability to remove elements from their existing elements. In order to support fixed size a new instance of a collection would have to be returned contaning the elements that would be left from the original collection after calling remove. In the case of mutable collections, the original collection is modified, and is returned. In order to use this method properly with mutable and fixed size collections the following approach must be taken:

 MutableCollection list;
 list = list.without("1");
 list = list.without("2");
 return list;
 

In the case of FixedSizeCollection a new instance of MutableCollection will be returned by without, and any variables that previously referenced the original collection will need to be redirected to reference the new instance. For other MutableCollection types you will replace the reference to collection with the same collection, since the instance will return "this" after calling remove on itself.

Specified by:

without in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

without in interface com.gs.collections.api.bag.MutableBagIterable<T>

Specified by:

without in interface com.gs.collections.api.collection.MutableCollection<T>

See Also:

Collection.remove(Object)

withAll

public com.gs.collections.api.bag.MutableBag<T> withAll(java.lang.Iterable<? extends T> elements)

Description copied from interface: com.gs.collections.api.collection.MutableCollection

This method allows mutable and fixed size collections the ability to add multiple elements to their existing elements. In order to support fixed size a new instance of a collection would have to be returned taking the elements of the original collection and appending the new elements to form the new collection. In the case of mutable collections, the original collection is modified, and is returned. In order to use this method properly with mutable and fixed size collections the following approach must be taken:

 MutableCollection list;
 list = list.withAll(FastList.newListWith("1", "2"));
 return list;
 

In the case of FixedSizeCollection a new instance of MutableCollection will be returned by withAll, and any variables that previously referenced the original collection will need to be redirected to reference the new instance. For other MutableCollection types you will replace the reference to collection with the same collection, since the instance will return "this" after calling addAll on itself.

Specified by:

withAll in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

withAll in interface com.gs.collections.api.bag.MutableBagIterable<T>

Specified by:

withAll in interface com.gs.collections.api.collection.MutableCollection<T>

See Also:

Collection.addAll(Collection)

withoutAll

public com.gs.collections.api.bag.MutableBag<T> withoutAll(java.lang.Iterable<? extends T> elements)

Description copied from interface: com.gs.collections.api.collection.MutableCollection

This method allows mutable and fixed size collections the ability to remove multiple elements from their existing elements. In order to support fixed size a new instance of a collection would have to be returned contaning the elements that would be left from the original collection after calling removeAll. In the case of mutable collections, the original collection is modified, and is returned. In order to use this method properly with mutable and fixed size collections the following approach must be taken:

 MutableCollection list;
 list = list.withoutAll(FastList.newListWith("1", "2"));
 return list;
 

In the case of FixedSizeCollection a new instance of MutableCollection will be returned by withoutAll, and any variables that previously referenced the original collection will need to be redirected to reference the new instance. For other MutableCollection types you will replace the reference to collection with the same collection, since the instance will return "this" after calling removeAll on itself.

Specified by:

withoutAll in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

withoutAll in interface com.gs.collections.api.bag.MutableBagIterable<T>

Specified by:

withoutAll in interface com.gs.collections.api.collection.MutableCollection<T>

See Also:

Collection.removeAll(Collection)

toMapOfItemToCount

public com.gs.collections.api.map.MutableMap<T,java.lang.Integer> toMapOfItemToCount()

Description copied from interface: com.gs.collections.api.bag.Bag

Converts the Bag to a Map of the Item type to its count as an Integer.

Specified by:

toMapOfItemToCount in interface com.gs.collections.api.bag.Bag<T>

Specified by:

toMapOfItemToCount in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

toMapOfItemToCount in interface com.gs.collections.api.bag.MutableBagIterable<T>

toStringOfItemToCount

public java.lang.String toStringOfItemToCount()

Description copied from interface: com.gs.collections.api.bag.Bag

Returns a string representation of this bag. The string representation consists of a list of element-count mappings. The elements each appear once, in an order consistent with other methods like Bag.forEachWithOccurrences(ObjectIntProcedure) and Iterable.iterator(). The element-count mappings are enclosed in braces ("{}"). Adjacent mappings are separated by the characters ", " (comma and space). Each element-count mapping is rendered as the element followed by an equals sign ("=") followed by the number of ooccurrences. Elements and are converted to strings as by String.valueOf(Object).

The string representation is similar to AbstractMap.toString(), not RichIterable.toString().

Specified by:

toStringOfItemToCount in interface com.gs.collections.api.bag.Bag<T>

Returns:

a string representation of this bag

groupBy

public <V> com.gs.collections.api.multimap.bag.MutableBagMultimap<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.bag.Bag<T>

Specified by:

groupBy in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

groupBy in interface com.gs.collections.api.bag.MutableBagIterable<T>

Specified by:

groupBy in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

groupBy in interface com.gs.collections.api.collection.MutableCollection<T>

Specified by:

groupBy in interface com.gs.collections.api.RichIterable<T>

groupByEach

public <V> com.gs.collections.api.multimap.bag.MutableBagMultimap<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.bag.Bag<T>

Specified by:

groupByEach in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

groupByEach in interface com.gs.collections.api.bag.MutableBagIterable<T>

Specified by:

groupByEach in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

groupByEach in interface com.gs.collections.api.collection.MutableCollection<T>

Specified by:

groupByEach in interface com.gs.collections.api.RichIterable<T>

groupByUniqueKey

public <V> com.gs.collections.api.map.MutableMap<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.collection.MutableCollection<T>

Specified by:

groupByUniqueKey in interface com.gs.collections.api.RichIterable<T>

See Also:

RichIterable.groupBy(Function)

zip

@Deprecated
public <S> com.gs.collections.api.bag.MutableBag<com.gs.collections.api.tuple.Pair<T,S>> zip(java.lang.Iterable<S> that)

Deprecated. in 6.0. Use OrderedIterable.zip(Iterable) instead.

Description copied from interface: com.gs.collections.api.RichIterable

Returns a RichIterable formed from this RichIterable and another RichIterable by combining corresponding elements in pairs. If one of the two RichIterables is longer than the other, its remaining elements are ignored.

Specified by:

zip in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

zip in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

zip in interface com.gs.collections.api.collection.MutableCollection<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

@Deprecated
public com.gs.collections.api.set.MutableSet<com.gs.collections.api.tuple.Pair<T,java.lang.Integer>> zipWithIndex()

Deprecated. in 6.0. Use OrderedIterable.zipWithIndex() instead.

Description copied from interface: com.gs.collections.api.RichIterable

Zips this RichIterable with its indices.

Specified by:

zipWithIndex in interface com.gs.collections.api.bag.Bag<T>

Specified by:

zipWithIndex in interface com.gs.collections.api.bag.MutableBag<T>

Specified by:

zipWithIndex in interface com.gs.collections.api.bag.MutableBagIterable<T>

Specified by:

zipWithIndex in interface com.gs.collections.api.bag.UnsortedBag<T>

Specified by:

zipWithIndex in interface com.gs.collections.api.collection.MutableCollection<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.RichIterable<com.gs.collections.api.RichIterable<T>> chunk(int size)

Description copied from interface: com.gs.collections.api.RichIterable

Partitions elements in fixed size chunks.

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.

forEachWithOccurrences

public void forEachWithOccurrences(com.gs.collections.api.block.procedure.primitive.ObjectIntProcedure<? super T> procedure)

Description copied from interface: com.gs.collections.api.bag.Bag

For each distinct item, with the number of occurrences, execute the specified procedure.

Specified by:

forEachWithOccurrences in interface com.gs.collections.api.bag.Bag<T>

equals

public boolean equals(java.lang.Object o)

Description copied from interface: com.gs.collections.api.bag.Bag

Two bagsb1 and b2 are equal if m1.toMapOfItemToCount().equals(m2.toMapOfItemToCount()).

Specified by:

equals in interface com.gs.collections.api.bag.Bag<T>

Specified by:

equals in interface java.util.Collection<T>

Overrides:

equals in class java.lang.Object

See Also:

Map.equals(Object)

hashCode

public int hashCode()

Description copied from interface: com.gs.collections.api.bag.Bag

Returns the hash code for this Bag, defined as this.Bag.toMapOfItemToCount().hashCode().

Specified by:

hashCode in interface com.gs.collections.api.bag.Bag<T>

Specified by:

hashCode in interface java.util.Collection<T>

Overrides:

hashCode in class java.lang.Object

See Also:

Map.hashCode()

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Specified by:

writeExternal in interface java.io.Externalizable

Throws:

java.io.IOException

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Specified by:

readExternal in interface java.io.Externalizable

Throws:

java.io.IOException

java.lang.ClassNotFoundException