/*
 * 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.set.immutable.primitive;

import java.io.IOException;
import java.io.Serializable;
import java.util.NoSuchElementException;

import org.eclipse.collections.api.DoubleIterable;
import org.eclipse.collections.api.LazyDoubleIterable;
import org.eclipse.collections.api.RichIterable;
import org.eclipse.collections.api.bag.primitive.MutableDoubleBag;
import org.eclipse.collections.api.set.ImmutableSet;
import org.eclipse.collections.api.set.primitive.ImmutableDoubleSet;
import org.eclipse.collections.api.set.primitive.DoubleSet;
import org.eclipse.collections.api.set.primitive.MutableDoubleSet;
import org.eclipse.collections.api.block.function.primitive.DoubleToObjectFunction;
import org.eclipse.collections.api.block.function.primitive.ObjectDoubleToObjectFunction;
import org.eclipse.collections.api.block.predicate.primitive.DoublePredicate;
import org.eclipse.collections.api.block.procedure.primitive.DoubleProcedure;
import org.eclipse.collections.api.iterator.DoubleIterator;
import org.eclipse.collections.api.list.primitive.MutableDoubleList;
import org.eclipse.collections.impl.bag.mutable.primitive.DoubleHashBag;
import org.eclipse.collections.impl.set.mutable.primitive.DoubleHashSet;
import org.eclipse.collections.impl.factory.Lists;
import org.eclipse.collections.impl.factory.Sets;
import org.eclipse.collections.impl.factory.primitive.DoubleSets;
import org.eclipse.collections.impl.iterator.ImmutableEmptyDoubleIterator;
import org.eclipse.collections.impl.lazy.primitive.LazyDoubleIterableAdapter;
import org.eclipse.collections.impl.list.mutable.primitive.DoubleArrayList;

ImmutableDoubleEmptySet is an optimization for ImmutableDoubleSet of size 0. This file was automatically generated from template file immutablePrimitiveEmptySet.stg.
Since:4.0.
/** * ImmutableDoubleEmptySet is an optimization for {@link ImmutableDoubleSet} of size 0. * This file was automatically generated from template file immutablePrimitiveEmptySet.stg. * * @since 4.0. */
final class ImmutableDoubleEmptySet implements ImmutableDoubleSet, Serializable { static final ImmutableDoubleSet INSTANCE = new ImmutableDoubleEmptySet(); private static final long serialVersionUID = 1L; private Object readResolve() { return INSTANCE; } @Override public ImmutableDoubleSet newWith(double element) { return new ImmutableDoubleSingletonSet(element); } @Override public ImmutableDoubleSet newWithout(double element) { return this; } @Override public ImmutableDoubleSet newWithAll(DoubleIterable elements) { return DoubleSets.immutable.withAll(elements); } @Override public ImmutableDoubleSet newWithoutAll(DoubleIterable elements) { return this; } @Override public int size() { return 0; } @Override public boolean isEmpty() { return true; } @Override public boolean notEmpty() { return false; } @Override public boolean contains(double value) { return false; } @Override public boolean containsAll(DoubleIterable source) { return source.isEmpty(); } @Override public boolean containsAll(double... elements) { return elements.length == 0; } @Override public void forEach(DoubleProcedure procedure) { }
Since:7.0.
/** * @since 7.0. */
@Override public void each(DoubleProcedure procedure) { } @Override public ImmutableDoubleSet select(DoublePredicate predicate) { return this; } @Override public ImmutableDoubleSet reject(DoublePredicate predicate) { return this; } @Override public <V> ImmutableSet<V> collect(DoubleToObjectFunction<? extends V> function) { return Sets.immutable.of(); } @Override public MutableDoubleList toList() { return new DoubleArrayList(); } @Override public double detectIfNone(DoublePredicate predicate, double ifNone) { return ifNone; } @Override public int count(DoublePredicate predicate) { return 0; } @Override public boolean anySatisfy(DoublePredicate predicate) { return false; } @Override public double sum() { return 0.0; } @Override public double min() { throw new NoSuchElementException(); } @Override public double max() { throw new NoSuchElementException(); } @Override public double maxIfEmpty(double defaultValue) { return defaultValue; } @Override public double minIfEmpty(double defaultValue) { return defaultValue; } @Override public double average() { throw new ArithmeticException(); } @Override public double median() { throw new ArithmeticException(); } @Override public double[] toSortedArray() { return new double[0]; } @Override public MutableDoubleList toSortedList() { return new DoubleArrayList(); } @Override public boolean noneSatisfy(DoublePredicate predicate) { return true; } @Override public boolean allSatisfy(DoublePredicate predicate) { return true; } @Override public <T> T injectInto(T injectedValue, ObjectDoubleToObjectFunction<? super T, ? extends T> function) { return injectedValue; } @Override public RichIterable<DoubleIterable> chunk(int size) { return Lists.immutable.empty(); } @Override public boolean equals(Object obj) { if (obj == this) { return true; } if (!(obj instanceof DoubleSet)) { return false; } DoubleSet set = (DoubleSet) obj; return set.isEmpty(); } @Override public int hashCode() { return 0; } @Override public MutableDoubleSet toSet() { return new DoubleHashSet(); } @Override public MutableDoubleBag toBag() { return new DoubleHashBag(); } @Override public DoubleSet freeze() { return this; } @Override public ImmutableDoubleSet toImmutable() { return this; } @Override public LazyDoubleIterable asLazy() { return new LazyDoubleIterableAdapter(this); } @Override public double[] toArray() { return new double[0]; } @Override public double[] toArray(double[] target) { return target; } @Override public String toString() { return "[]"; } @Override public String makeString() { return ""; } @Override public String makeString(String separator) { return ""; } @Override public String makeString(String start, String separator, String end) { return start + end; } @Override public void appendString(Appendable appendable) { } @Override public void appendString(Appendable appendable, String separator) { } @Override public void appendString(Appendable appendable, String start, String separator, String end) { try { appendable.append(start); appendable.append(end); } catch (IOException e) { throw new RuntimeException(e); } } @Override public DoubleIterator doubleIterator() { return ImmutableEmptyDoubleIterator.INSTANCE; } }