net.pwall.util

Class ImmutableCollectionBase<A,E>

java.lang.Object

net.pwall.util.ImmutableBase<A>

net.pwall.util.ImmutableCollectionBase<A,E>

Type Parameters:

A - the array item type

E - the collection element type

All Implemented Interfaces:

Iterable<E>, Collection<E>

Direct Known Subclasses:

ImmutableCollection, ImmutableMap.KeySet, ImmutableMap.ValueCollection

public abstract class ImmutableCollectionBase<A,E>
extends ImmutableBase<A>
implements Collection<E>

Base class for implementations of Collection and its derived classes.

Author:

Peter Wall

Method Summary

Modifier and Type	Method and Description
boolean	add(E e) Modifying operation - not allowed.
boolean	addAll(Collection<? extends E> c) Modifying operation - not allowed.
boolean	containsAll(Collection<?> c) Test whether the collection contains all of the objects in a supplied Collection.
boolean	remove(Object o) Modifying operation - not allowed.
boolean	removeAll(Collection<?> c) Modifying operation - not allowed.
boolean	retainAll(Collection<?> c) Modifying operation - not allowed.
String	toString() Returns a string representation of this collection.

Methods inherited from class net.pwall.util.ImmutableBase

clear, isEmpty, 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, contains, equals, hashCode, isEmpty, iterator, parallelStream, removeIf, size, spliterator, stream, toArray, toArray

Methods inherited from interface java.lang.Iterable

forEach

Method Detail

containsAll

public boolean containsAll(Collection<?> c)

Test whether the collection contains all of the objects in a supplied Collection.

Specified by:

containsAll in interface Collection<E>

Parameters:

c - the other Collection

Returns:

true if the collection contains all of the objects in the other Collection

add

public boolean add(E e)

Modifying operation - not allowed.

Specified by:

add in interface Collection<E>

Throws:

UnsupportedOperationException - (in all cases)

remove

public boolean remove(Object o)

Modifying operation - not allowed.

Specified by:

remove in interface Collection<E>

Throws:

UnsupportedOperationException - (in all cases)

addAll

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

Modifying operation - not allowed.

Specified by:

addAll in interface Collection<E>

Throws:

UnsupportedOperationException - (in all cases)

removeAll

public boolean removeAll(Collection<?> c)

Modifying operation - not allowed.

Specified by:

removeAll in interface Collection<E>

Throws:

UnsupportedOperationException - (in all cases)

retainAll

public boolean retainAll(Collection<?> c)

Modifying operation - not allowed.

Specified by:

retainAll in interface Collection<E>

Throws:

UnsupportedOperationException - (in all cases)

toString

public String toString()

Returns a string representation of this collection. The string representation consists of the string representations of each of the elements, enclosed in square brackets and separated by a comma and a space. Elements are converted to strings by String.valueOf(Object).

Overrides:

toString in class Object

Returns:

a string representation of this collection