/*
 * 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.impl.map.immutable.primitive;

import org.eclipse.collections.api.block.function.Function;
import org.eclipse.collections.api.block.function.primitive.DoubleFunction;
import org.eclipse.collections.api.factory.map.primitive.ImmutableDoubleObjectMapFactory;
import org.eclipse.collections.api.map.primitive.ImmutableDoubleObjectMap;
import org.eclipse.collections.api.map.primitive.DoubleObjectMap;
import org.eclipse.collections.impl.factory.primitive.DoubleObjectMaps;

ImmutableDoubleObjectMapFactoryImpl is a factory implementation which creates instances of type ImmutableDoubleObjectMap. This file was automatically generated from template file immutablePrimitiveObjectMapFactoryImpl.stg.
Since:4.0.
/** * ImmutableDoubleObjectMapFactoryImpl is a factory implementation which creates instances of type {@link ImmutableDoubleObjectMap}. * This file was automatically generated from template file immutablePrimitiveObjectMapFactoryImpl.stg. * * @since 4.0. */
public enum ImmutableDoubleObjectMapFactoryImpl implements ImmutableDoubleObjectMapFactory { INSTANCE; @Override public <V> ImmutableDoubleObjectMap<V> empty() { return (ImmutableDoubleObjectMap<V>) ImmutableDoubleObjectEmptyMap.INSTANCE; } @Override public <V> ImmutableDoubleObjectMap<V> of() { return this.empty(); } @Override public <V> ImmutableDoubleObjectMap<V> with() { return this.empty(); } @Override public <V> ImmutableDoubleObjectMap<V> of(double key, V value) { return this.with(key, value); } @Override public <V> ImmutableDoubleObjectMap<V> with(double key, V value) { return new ImmutableDoubleObjectSingletonMap<>(key, value); } @Override public <V> ImmutableDoubleObjectMap<V> ofAll(DoubleObjectMap<? extends V> map) { return this.withAll(map); } @Override public <V> ImmutableDoubleObjectMap<V> withAll(DoubleObjectMap<? extends V> map) { if (map instanceof ImmutableDoubleObjectMap) { return (ImmutableDoubleObjectMap<V>) map; } if (map.isEmpty()) { return this.with(); } if (map.size() == 1) { //TODO use keysView() when available. final double[] array = new double[1]; map.forEachKey((double each) -> array[0] = each); return new ImmutableDoubleObjectSingletonMap<>(array[0], map.get(array[0])); } return new ImmutableDoubleObjectHashMap<>(map); } @Override public <T, V> ImmutableDoubleObjectMap<V> from(Iterable<T> iterable, DoubleFunction<? super T> keyFunction, Function<? super T, ? extends V> valueFunction) { DoubleObjectMap<V> map = DoubleObjectMaps.mutable.from(iterable, keyFunction, valueFunction); return map.toImmutable(); } }