/*
 * Copyright (c) 2018 Goldman Sachs and others.
 * 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.stack.mutable.primitive;

import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;

import org.eclipse.collections.api.DoubleIterable;
import org.eclipse.collections.api.block.function.primitive.DoubleToObjectFunction;
import org.eclipse.collections.api.block.predicate.primitive.DoublePredicate;
import org.eclipse.collections.api.iterator.DoubleIterator;
import org.eclipse.collections.api.list.primitive.DoubleList;
import org.eclipse.collections.api.list.primitive.MutableDoubleList;
import org.eclipse.collections.api.stack.MutableStack;
import org.eclipse.collections.api.stack.primitive.ImmutableDoubleStack;
import org.eclipse.collections.api.stack.primitive.MutableDoubleStack;
import org.eclipse.collections.impl.factory.primitive.DoubleStacks;
import org.eclipse.collections.impl.list.mutable.primitive.DoubleArrayList;
import org.eclipse.collections.impl.stack.primitive.AbstractDoubleStack;
import org.eclipse.collections.impl.stack.mutable.ArrayStack;

DoubleArrayStack is similar to ArrayStack, and is memory-optimized for double primitives. This file was automatically generated from template file primitiveArrayStack.stg.
/** * DoubleArrayStack is similar to {@link ArrayStack}, and is memory-optimized for double primitives. * This file was automatically generated from template file primitiveArrayStack.stg. */
public class DoubleArrayStack extends AbstractDoubleStack implements MutableDoubleStack, Externalizable { private static final long serialVersionUID = 1L; private transient DoubleArrayList delegate; public DoubleArrayStack() { this.delegate = new DoubleArrayList(); } private DoubleArrayStack(int size) { this.delegate = new DoubleArrayList(size); } private DoubleArrayStack(double... items) { this.delegate = new DoubleArrayList(items); } public static DoubleArrayStack newStackFromTopToBottom(double... items) { DoubleArrayStack stack = new DoubleArrayStack(items.length); for (int i = items.length - 1; i >= 0; i--) { stack.push(items[i]); } return stack; } public static DoubleArrayStack newStackWith(double... items) { return new DoubleArrayStack(items); } public static DoubleArrayStack newStack(DoubleIterable items) { DoubleArrayStack stack = new DoubleArrayStack(items.size()); stack.delegate = DoubleArrayList.newList(items); return stack; } public static DoubleArrayStack newStackFromTopToBottom(DoubleIterable items) { DoubleArrayStack stack = new DoubleArrayStack(items.size()); stack.delegate = DoubleArrayList.newList(items).reverseThis(); return stack; } @Override protected DoubleArrayList getDelegate() { return this.delegate; } @Override public void push(double item) { this.delegate.add(item); } @Override public double pop() { this.checkEmptyStack(); return this.delegate.removeAtIndex(this.delegate.size() - 1); } @Override public DoubleList pop(int count) { this.checkPositiveValueForCount(count); this.checkSizeLessThanCount(count); if (count == 0) { return new DoubleArrayList(0); } MutableDoubleList subList = new DoubleArrayList(count); while (count > 0) { subList.add(this.pop()); count--; } return subList; } @Override public MutableDoubleStack select(DoublePredicate predicate) { return newStackFromTopToBottom(this.delegate.asReversed().select(predicate)); } @Override public MutableDoubleStack reject(DoublePredicate predicate) { return newStackFromTopToBottom(this.delegate.asReversed().reject(predicate)); } @Override public <V> MutableStack<V> collect(DoubleToObjectFunction<? extends V> function) { return ArrayStack.newStackFromTopToBottom(this.delegate.asReversed().collect(function)); } @Override public void clear() { this.delegate.clear(); } @Override public MutableDoubleList toSortedList() { return DoubleArrayList.newList(this).sortThis(); } @Override public MutableDoubleStack asUnmodifiable() { return new UnmodifiableDoubleStack(this); } @Override public MutableDoubleStack asSynchronized() { return new SynchronizedDoubleStack(this); } @Override public ImmutableDoubleStack toImmutable() { return DoubleStacks.immutable.withAll(this.delegate); }
Creates a new empty DoubleArrayStack.
Since:9.2.
/** * Creates a new empty DoubleArrayStack. * * @since 9.2. */
public DoubleArrayStack newEmpty() { return new DoubleArrayStack(); } @Override public void writeExternal(ObjectOutput out) throws IOException { out.writeInt(this.size()); DoubleIterator iterator = this.delegate.asReversed().doubleIterator(); while (iterator.hasNext()) { double each = iterator.next(); out.writeDouble(each); } } @Override public void readExternal(ObjectInput in) throws IOException { int size = in.readInt(); double[] array = new double[size]; for (int i = size - 1; i >= 0; i--) { array[i] = in.readDouble(); } this.delegate = DoubleArrayList.newListWith(array); } }