/*
 * 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.IntIterable;
import org.eclipse.collections.api.block.function.primitive.IntToObjectFunction;
import org.eclipse.collections.api.block.predicate.primitive.IntPredicate;
import org.eclipse.collections.api.iterator.IntIterator;
import org.eclipse.collections.api.list.primitive.IntList;
import org.eclipse.collections.api.list.primitive.MutableIntList;
import org.eclipse.collections.api.stack.MutableStack;
import org.eclipse.collections.api.stack.primitive.ImmutableIntStack;
import org.eclipse.collections.api.stack.primitive.MutableIntStack;
import org.eclipse.collections.impl.factory.primitive.IntStacks;
import org.eclipse.collections.impl.list.mutable.primitive.IntArrayList;
import org.eclipse.collections.impl.stack.primitive.AbstractIntStack;
import org.eclipse.collections.impl.stack.mutable.ArrayStack;

IntArrayStack is similar to ArrayStack, and is memory-optimized for int primitives. This file was automatically generated from template file primitiveArrayStack.stg.
/** * IntArrayStack is similar to {@link ArrayStack}, and is memory-optimized for int primitives. * This file was automatically generated from template file primitiveArrayStack.stg. */
public class IntArrayStack extends AbstractIntStack implements MutableIntStack, Externalizable { private static final long serialVersionUID = 1L; private transient IntArrayList delegate; public IntArrayStack() { this.delegate = new IntArrayList(); } private IntArrayStack(int size) { this.delegate = new IntArrayList(size); } private IntArrayStack(int... items) { this.delegate = new IntArrayList(items); } public static IntArrayStack newStackFromTopToBottom(int... items) { IntArrayStack stack = new IntArrayStack(items.length); for (int i = items.length - 1; i >= 0; i--) { stack.push(items[i]); } return stack; } public static IntArrayStack newStackWith(int... items) { return new IntArrayStack(items); } public static IntArrayStack newStack(IntIterable items) { IntArrayStack stack = new IntArrayStack(items.size()); stack.delegate = IntArrayList.newList(items); return stack; } public static IntArrayStack newStackFromTopToBottom(IntIterable items) { IntArrayStack stack = new IntArrayStack(items.size()); stack.delegate = IntArrayList.newList(items).reverseThis(); return stack; } @Override protected IntArrayList getDelegate() { return this.delegate; } @Override public void push(int item) { this.delegate.add(item); } @Override public int pop() { this.checkEmptyStack(); return this.delegate.removeAtIndex(this.delegate.size() - 1); } @Override public IntList pop(int count) { this.checkPositiveValueForCount(count); this.checkSizeLessThanCount(count); if (count == 0) { return new IntArrayList(0); } MutableIntList subList = new IntArrayList(count); while (count > 0) { subList.add(this.pop()); count--; } return subList; } @Override public MutableIntStack select(IntPredicate predicate) { return newStackFromTopToBottom(this.delegate.asReversed().select(predicate)); } @Override public MutableIntStack reject(IntPredicate predicate) { return newStackFromTopToBottom(this.delegate.asReversed().reject(predicate)); } @Override public <V> MutableStack<V> collect(IntToObjectFunction<? extends V> function) { return ArrayStack.newStackFromTopToBottom(this.delegate.asReversed().collect(function)); } @Override public void clear() { this.delegate.clear(); } @Override public MutableIntList toSortedList() { return IntArrayList.newList(this).sortThis(); } @Override public MutableIntStack asUnmodifiable() { return new UnmodifiableIntStack(this); } @Override public MutableIntStack asSynchronized() { return new SynchronizedIntStack(this); } @Override public ImmutableIntStack toImmutable() { return IntStacks.immutable.withAll(this.delegate); }
Creates a new empty IntArrayStack.
Since:9.2.
/** * Creates a new empty IntArrayStack. * * @since 9.2. */
public IntArrayStack newEmpty() { return new IntArrayStack(); } @Override public void writeExternal(ObjectOutput out) throws IOException { out.writeInt(this.size()); IntIterator iterator = this.delegate.asReversed().intIterator(); while (iterator.hasNext()) { int each = iterator.next(); out.writeInt(each); } } @Override public void readExternal(ObjectInput in) throws IOException { int size = in.readInt(); int[] array = new int[size]; for (int i = size - 1; i >= 0; i--) { array[i] = in.readInt(); } this.delegate = IntArrayList.newListWith(array); } }