it.unimi.dsi.fastutil.doubles
Class AbstractDoubleCollection

java.lang.Object
  it.unimi.dsi.fastutil.doubles.AbstractDoubleCollection

All Implemented Interfaces:

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

Direct Known Subclasses:

AbstractDoubleList, AbstractDoubleSet, DoubleCollections.EmptyCollection

public abstract class AbstractDoubleCollection
extends Object
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.

Method Summary

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.
void	clear()
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)
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.lang.Object

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

Methods inherited from interface it.unimi.dsi.fastutil.doubles.DoubleCollection

contains

Methods inherited from interface java.util.Collection

equals, hashCode, size

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[])

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)

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>

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>

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>

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)

remove

public boolean remove(Object ok)

Specified by:

remove in interface Collection<Double>

clear

public void clear()

Specified by:

clear in interface Collection<Double>

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>

Returns:

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

add

public boolean add(Double o)

Delegates to the corresponding type-specific method.

Specified by:

add in interface Collection<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>

containsAll

public boolean containsAll(Collection<?> c)

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

Specified by:

containsAll in interface Collection<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>

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>

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>

toString

public String toString()

Overrides:

toString in class Object