/*
 * Copyright (c) 2018 Goldman Sachs.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and Eclipse Distribution License v. 1.0 which accompany this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 */

package org.eclipse.collections.api.map.primitive;

import org.eclipse.collections.api.LazyLongIterable;
import org.eclipse.collections.api.RichIterable;
import org.eclipse.collections.api.block.function.Function0;
import org.eclipse.collections.api.block.predicate.primitive.LongObjectPredicate;
import org.eclipse.collections.api.block.procedure.Procedure;
import org.eclipse.collections.api.block.procedure.primitive.LongObjectProcedure;
import org.eclipse.collections.api.block.procedure.primitive.LongProcedure;
import org.eclipse.collections.api.set.primitive.MutableLongSet;
import org.eclipse.collections.api.tuple.primitive.LongObjectPair;

This file was automatically generated from template file primitiveObjectMap.stg.
Since:
3.0./**
 * This file was automatically generated from template file primitiveObjectMap.stg.
 *
 * @since 3.0.
 */
public interface LongObjectMap<V> extends PrimitiveObjectMap<V>
{
    
Retrieves the value associated with the key. If no mapping exists for the key, null is returned. 
Params:
key – the key
Returns:
the value associated with the key, or the default value if no such
mapping exists/**
     * Retrieves the value associated with the key. If no mapping exists for the key,
     * {@code null} is returned.
     * @param key the key
     * @return the value associated with the key, or the default value if no such
     * mapping exists
     */
    V get(long key);

    
Retrieves the value associated with the key if one exists; if it does not,
returns the result of invoking the value supplier.
Params:
key – the key
function – the supplier that provides the value if no mapping exists for key
Returns:
the value associated with the key, if one exists, or the result of invoking ifAbsent if not/**
     * Retrieves the value associated with the key if one exists; if it does not,
     * returns the result of invoking the value supplier.
     * @param key the key
     * @param function the supplier that provides the value if no mapping exists for {@code key}
     * @return the value associated with the key, if one exists, or the result of
     * invoking {@code ifAbsent} if not
     */
    V getIfAbsent(long key, Function0<? extends V> ifAbsent);

    
Returns whether or not the key is present in the map.
Params:
key – the key
Returns:
if a mapping exists in this map for the key/**
     * Returns whether or not the key is present in the map.
     * @param key the key
     * @return if a mapping exists in this map for the key
     */
    boolean containsKey(long key);

    @Override
    LongObjectMap<V> tap(Procedure<? super V> procedure);

    
Iterates through each key in the map, invoking the procedure for each.
Params:
procedure – the procedure to invoke for each key/**
     * Iterates through each key in the map, invoking the procedure for each.
     * @param procedure the procedure to invoke for each key
     */
    void forEachKey(LongProcedure procedure);

    
Iterates through each key/value pair in the map, invoking the procedure for each.
Params:
procedure – the procedure to invoke for each key/value pair/**
     * Iterates through each key/value pair in the map, invoking the procedure for each.
     * @param procedure the procedure to invoke for each key/value pair
     */
    void forEachKeyValue(LongObjectProcedure<? super V> procedure);

    
Return a copy of this map containing only the key/value pairs that match the predicate.
Params:
predicate – the predicate to determine which key/value pairs in this map should be
included in the returned map
Returns:
a copy of this map with the matching key/value pairs/**
     * Return a copy of this map containing only the key/value pairs that match the predicate.
     * @param predicate the predicate to determine which key/value pairs in this map should be
     * included in the returned map
     * @return a copy of this map with the matching key/value pairs
     */
    LongObjectMap<V> select(LongObjectPredicate<? super V> predicate);

    
Return a copy of this map containing only the key/value pairs that do not match the
predicate.
Params:
predicate – the predicate to determine which key/value pairs in this map should be
excluded from the returned map
Returns:
a copy of this map without the matching key/value pairs/**
     * Return a copy of this map containing only the key/value pairs that do not match the
     * predicate.
     * @param predicate the predicate to determine which key/value pairs in this map should be
     * excluded from the returned map
     * @return a copy of this map without the matching key/value pairs
     */
    LongObjectMap<V> reject(LongObjectPredicate<? super V> predicate);

    
Returns a copy of this map that is immutable (if this map is mutable) or
itself if it is already immutable.
Returns:
an immutable map that is equivalent to this one/**
     * Returns a copy of this map that is immutable (if this map is mutable) or
     * itself if it is already immutable.
     * @return an immutable map that is equivalent to this one
     */
    ImmutableLongObjectMap<V> toImmutable();

    
Returns a set containing all the keys in this map. The set is backed by the
map, so any modifications to the returned set will affect this map.
Returns:
a mutable set containing the keys in this map/**
     * Returns a set containing all the keys in this map. The set is backed by the
     * map, so any modifications to the returned set will affect this map.
     * @return a mutable set containing the keys in this map
     */
    MutableLongSet keySet();

    
Returns a view of the keys in this map. This iterable is backed by the map, so
any modifications to the underlying map will be reflected in the keys returned
by the iterable.
Returns:
a view of the keys in this map
Since:
5.0/**
     * Returns a view of the keys in this map. This iterable is backed by the map, so
     * any modifications to the underlying map will be reflected in the keys returned
     * by the iterable.
     * @return a view of the keys in this map
     * @since 5.0
     */
    LazyLongIterable keysView();

    
Returns a view of the key/value pairs in this map. This iterable is backed by
the map, so any modifications to the underlying map will be reflected in the
pairs returned by the iterable.
Returns:
a view of the keys in this map
Since:
5.0/**
     * Returns a view of the key/value pairs in this map. This iterable is backed by
     * the map, so any modifications to the underlying map will be reflected in the
     * pairs returned by the iterable.
     * @return a view of the keys in this map
     * @since 5.0
     */
    RichIterable<LongObjectPair<V>> keyValuesView();

    
Return the ObjectLongMap that is obtained by flipping the direction of this map and making the associations
from value to key.
Throws:
IllegalStateException – if the ObjectLongMap contains duplicate values.
Since:
9.0/**
     * Return the ObjectLongMap that is obtained by flipping the direction of this map and making the associations
     * from value to key.
     *
     * @throws IllegalStateException if the ObjectLongMap contains duplicate values.
     * @since 9.0
     */
    ObjectLongMap<V> flipUniqueValues();
}