src.it.unimi.dsi.fastutil.objects.ReferenceCollection Maven / Gradle / Ivy
/* Generic definitions */
/* Assertions (useful to generate conditional code) */
/* Current type and class (and size, if applicable) */
/* Value methods */
/* Interfaces (keys) */
/* Interfaces (values) */
/* Abstract implementations (keys) */
/* Abstract implementations (values) */
/* Static containers (keys) */
/* Static containers (values) */
/* Implementations */
/* Synchronized wrappers */
/* Unmodifiable wrappers */
/* Other wrappers */
/* Methods (keys) */
/* Methods (values) */
/* Methods (keys/values) */
/* Methods that have special names depending on keys (but the special names depend on values) */
/* Equality */
/* Object/Reference-only definitions (keys) */
/* Object/Reference-only definitions (values) */
/*
* Copyright (C) 2002-2015 Sebastiano Vigna
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package it.unimi.dsi.fastutil.objects;
import java.util.Collection;
/** A type-specific {@link Collection}; provides some additional methods that use polymorphism to avoid (un)boxing.
*
* Additionally, this class defines strengthens (again) {@link #iterator()} and defines a slightly different semantics for {@link #toArray(Object[])}.
*
* @see Collection */
public interface ReferenceCollection extends Collection, ObjectIterable {
/** Returns a type-specific iterator on the elements of this collection.
*
* Note that this specification strengthens the one given in {@link java.lang.Iterable#iterator()}, which was already strengthened in the corresponding type-specific class, but was weakened by
* the fact that this interface extends {@link Collection}.
*
* @return a type-specific iterator on the elements of this collection. */
ObjectIterator iterator();
/** Returns a type-specific iterator on this elements of this collection.
*
* @see #iterator()
* @deprecated As of fastutil 5, replaced by {@link #iterator()}. */
@Deprecated
ObjectIterator objectIterator();
/** 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 {@link Collection#toArray(Object[])}, this methods just writes all elements of this collection: no special value will be added after the
* last one.
*
* @param a if this array is big enough, it will be used to store this collection.
* @return a primitive type array containing the items of this collection.
* @see Collection#toArray(Object[]) */
T[] toArray( T[] a );
}