it.unimi.dsi.fastutil.doubles

Class AbstractDoubleCollection

java.lang.Object

java.util.AbstractCollection<Double>

it.unimi.dsi.fastutil.doubles.AbstractDoubleCollection

All Implemented Interfaces:

DoubleCollection, DoubleIterable, Iterable<Double>, Collection<Double>

Direct Known Subclasses:

AbstractByte2DoubleSortedMap.ValuesCollection, AbstractChar2DoubleSortedMap.ValuesCollection, AbstractDouble2DoubleSortedMap.ValuesCollection, AbstractDoubleBigList, AbstractDoubleList, AbstractDoubleSet, AbstractFloat2DoubleSortedMap.ValuesCollection, AbstractInt2DoubleSortedMap.ValuesCollection, AbstractLong2DoubleSortedMap.ValuesCollection, AbstractObject2DoubleSortedMap.ValuesCollection, AbstractReference2DoubleSortedMap.ValuesCollection, AbstractShort2DoubleSortedMap.ValuesCollection, DoubleCollections.EmptyCollection, DoubleCollections.IterableCollection

public abstract class AbstractDoubleCollection
extends AbstractCollection<Double>
implements DoubleCollection

An abstract class providing basic methods for collections implementing a type-specific interface.

In particular, this class provide iterator(), add(), remove(Object) and contains(Object) methods that just call the type-specific counterpart.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractDoubleCollection()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	add(double k)
boolean	add(Double o) Delegates to the corresponding type-specific method.
boolean	addAll(Collection<? extends Double> c) Adds all elements of the given collection to this collection.
boolean	addAll(DoubleCollection c) Adds all elements of the given type-specific collection to this collection.
boolean	contains(double k)
boolean	contains(Object o) Delegates to the corresponding type-specific method.
boolean	containsAll(Collection<?> c) Checks whether this collection contains all elements from the given collection.
boolean	containsAll(DoubleCollection c) Checks whether this collection contains all elements from the given type-specific collection.
DoubleIterator	doubleIterator() Deprecated.
boolean	isEmpty()
abstract DoubleIterator	iterator() Returns a type-specific iterator on the elements of this collection.
boolean	rem(double k) Note that this method should be called remove(), but the clash with the similarly named index-based method in the List interface forces us to use a distinguished name.
boolean	rem(Object o) Delegates to the corresponding type-specific method.
boolean	remove(Object ok) Delegates to the type-specific rem() method.
boolean	removeAll(Collection<?> c) Remove from this collection all elements in the given collection.
boolean	removeAll(DoubleCollection c) Remove from this collection all elements in the given type-specific collection.
boolean	retainAll(Collection<?> c) Retains in this collection only elements from the given collection.
boolean	retainAll(DoubleCollection c) Retains in this collection only elements from the given type-specific collection.
Object[]	toArray()
double[]	toArray(double[] a) Returns a primitive type array containing the items of this collection.
<T> T[]	toArray(T[] a) Returns an containing the items of this collection; the runtime type of the returned array is that of the specified array.
double[]	toDoubleArray() Returns a primitive type array containing the items of this collection.
double[]	toDoubleArray(double[] a) Returns a primitive type array containing the items of this collection.
String	toString()

Methods inherited from class java.util.AbstractCollection

clear, size

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

clear, equals, hashCode, size

Constructor Detail

AbstractDoubleCollection

protected AbstractDoubleCollection()

Method Detail

toArray

public double[] toArray(double[] a)

Description copied from interface: DoubleCollection

Returns a primitive type array containing the items of this collection.

Note that, contrarily to Collection.toArray(Object[]), this methods just writes all elements of this collection: no special value will be added after the last one.

Specified by:

toArray in interface DoubleCollection

Parameters:

a - if this array is big enough, it will be used to store this collection.

Returns:

a primitive type array containing the items of this collection.

See Also:

Collection.toArray(Object[])

toDoubleArray

public double[] toDoubleArray()

Description copied from interface: DoubleCollection

Returns a primitive type array containing the items of this collection.

Specified by:

toDoubleArray in interface DoubleCollection

Returns:

a primitive type array containing the items of this collection.

See Also:

Collection.toArray()

toDoubleArray

public double[] toDoubleArray(double[] a)

Description copied from interface: DoubleCollection

Returns a primitive type array containing the items of this collection.

Note that, contrarily to Collection.toArray(Object[]), this methods just writes all elements of this collection: no special value will be added after the last one.

Specified by:

toDoubleArray in interface DoubleCollection

Parameters:

a - if this array is big enough, it will be used to store this collection.

Returns:

a primitive type array containing the items of this collection.

See Also:

Collection.toArray(Object[])

addAll

public boolean addAll(DoubleCollection c)

Adds all elements of the given type-specific collection to this collection.

Specified by:

addAll in interface DoubleCollection

Parameters:

c - a type-specific collection.

Returns:

true if this collection changed as a result of the call.

See Also:

Collection.addAll(Collection)

containsAll

public boolean containsAll(DoubleCollection c)

Checks whether this collection contains all elements from the given type-specific collection.

Specified by:

containsAll in interface DoubleCollection

Parameters:

c - a type-specific collection.

Returns:

true if this collection contains all elements of the argument.

See Also:

Collection.containsAll(Collection)

retainAll

public boolean retainAll(DoubleCollection c)

Retains in this collection only elements from the given type-specific collection.

Specified by:

retainAll in interface DoubleCollection

Parameters:

c - a type-specific collection.

Returns:

true if this collection changed as a result of the call.

See Also:

Collection.retainAll(Collection)

removeAll

public boolean removeAll(DoubleCollection c)

Remove from this collection all elements in the given type-specific collection.

Specified by:

removeAll in interface DoubleCollection

Parameters:

c - a type-specific collection.

Returns:

true if this collection changed as a result of the call.

See Also:

Collection.removeAll(Collection)

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection<Double>

Overrides:

toArray in class AbstractCollection<Double>

toArray

public <T> T[] toArray(T[] a)

Description copied from interface: DoubleCollection

Returns an containing the items of this collection; the runtime type of the returned array is that of the specified array.

Warning: Note that, contrarily to Collection.toArray(Object[]), this methods just writes all elements of this collection: no special value will be added after the last one.

Specified by:

toArray in interface DoubleCollection

Specified by:

toArray in interface Collection<Double>

Overrides:

toArray in class AbstractCollection<Double>

Parameters:

a - if this array is big enough, it will be used to store this collection.

Returns:

a primitive type array containing the items of this collection.

See Also:

Collection.toArray(Object[])

addAll

public boolean addAll(Collection<? extends Double> c)

Adds all elements of the given collection to this collection.

Specified by:

addAll in interface Collection<Double>

Overrides:

addAll in class AbstractCollection<Double>

Parameters:

c - a collection.

Returns:

true if this collection changed as a result of the call.

add

public boolean add(double k)

Specified by:

add in interface DoubleCollection

See Also:

Collection.add(Object)

doubleIterator

@Deprecated
public DoubleIterator doubleIterator()

Deprecated.

Delegates to the new covariantly stronger generic method.

Specified by:

doubleIterator in interface DoubleCollection

See Also:

DoubleCollection.iterator()

iterator

public abstract DoubleIterator iterator()

Description copied from interface: DoubleCollection

Returns a type-specific iterator on the elements of this collection.

Note that this specification strengthens the one given in Iterable.iterator(), which was already strengthened in the corresponding type-specific class, but was weakened by the fact that this interface extends Collection.

Specified by:

iterator in interface DoubleCollection

Specified by:

iterator in interface DoubleIterable

Specified by:

iterator in interface Iterable<Double>

Specified by:

iterator in interface Collection<Double>

Specified by:

iterator in class AbstractCollection<Double>

Returns:

a type-specific iterator on the elements of this collection.

remove

public boolean remove(Object ok)

Delegates to the type-specific rem() method.

Specified by:

remove in interface Collection<Double>

Overrides:

remove in class AbstractCollection<Double>

add

public boolean add(Double o)

Delegates to the corresponding type-specific method.

Specified by:

add in interface Collection<Double>

Overrides:

add in class AbstractCollection<Double>

rem

public boolean rem(Object o)

Delegates to the corresponding type-specific method.

contains

public boolean contains(Object o)

Delegates to the corresponding type-specific method.

Specified by:

contains in interface Collection<Double>

Overrides:

contains in class AbstractCollection<Double>

contains

public boolean contains(double k)

Specified by:

contains in interface DoubleCollection

See Also:

Collection.contains(Object)

rem

public boolean rem(double k)

Description copied from interface: DoubleCollection

Note that this method should be called remove(), but the clash with the similarly named index-based method in the List interface forces us to use a distinguished name. For simplicity, the set interfaces reinstates remove().

Specified by:

rem in interface DoubleCollection

See Also:

Collection.remove(Object)

containsAll

public boolean containsAll(Collection<?> c)

Checks whether this collection contains all elements from the given collection.

Specified by:

containsAll in interface Collection<Double>

Overrides:

containsAll in class AbstractCollection<Double>

Parameters:

c - a collection.

Returns:

true if this collection contains all elements of the argument.

retainAll

public boolean retainAll(Collection<?> c)

Retains in this collection only elements from the given collection.

Specified by:

retainAll in interface Collection<Double>

Overrides:

retainAll in class AbstractCollection<Double>

Parameters:

c - a collection.

Returns:

true if this collection changed as a result of the call.

removeAll

public boolean removeAll(Collection<?> c)

Remove from this collection all elements in the given collection. If the collection is an instance of this class, it uses faster iterators.

Specified by:

removeAll in interface Collection<Double>

Overrides:

removeAll in class AbstractCollection<Double>

Parameters:

c - a collection.

Returns:

true if this collection changed as a result of the call.

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection<Double>

Overrides:

isEmpty in class AbstractCollection<Double>

toString

public String toString()

Overrides:

toString in class AbstractCollection<Double>