diff options
Diffstat (limited to 'jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/SimpleStack.java')
-rw-r--r-- | jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/SimpleStack.java | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/SimpleStack.java b/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/SimpleStack.java deleted file mode 100644 index f183943d9a..0000000000 --- a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/SimpleStack.java +++ /dev/null @@ -1,95 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2007, 2008 Oracle. All rights reserved. - * This program and the accompanying materials are made available under the - * terms of the Eclipse Public License v1.0, which accompanies this distribution - * and is available at http://www.eclipse.org/legal/epl-v10.html. - * - * Contributors: - * Oracle - initial API and implementation - ******************************************************************************/ -package org.eclipse.jpt.utility.internal; - -import java.io.Serializable; -import java.util.Collection; -import java.util.EmptyStackException; -import java.util.LinkedList; -import java.util.NoSuchElementException; - -/** - * Straightforward implementation of the Stack interface. - */ -public class SimpleStack<E> - implements Stack<E>, Cloneable, Serializable -{ - private LinkedList<E> elements; - - private static final long serialVersionUID = 1L; - - - // ********** constructors ********** - - /** - * Construct an empty stack. - */ - public SimpleStack() { - super(); - this.elements = new LinkedList<E>(); - } - - /** - * Construct a stack containing the elements of the specified - * collection. The stack will pop its elements in reverse of the - * order they are returned by the collection's iterator (i.e. the - * last element returned by the collection's iterator will be the - * first element returned by #pop()). - */ - public SimpleStack(Collection<? extends E> c) { - super(); - this.elements = new LinkedList<E>(c); - } - - - // ********** Stack implementation ********** - - public void push(E o) { - this.elements.addLast(o); - } - - public E pop() { - try { - return this.elements.removeLast(); - } catch (NoSuchElementException ex) { - throw new EmptyStackException(); - } - } - - public E peek() { - try { - return this.elements.getLast(); - } catch (NoSuchElementException ex) { - throw new EmptyStackException(); - } - } - - public boolean isEmpty() { - return this.elements.isEmpty(); - } - - - // ********** Cloneable implementation ********** - - @Override - public SimpleStack<E> clone() { - try { - @SuppressWarnings("unchecked") - SimpleStack<E> clone = (SimpleStack<E>) super.clone(); - @SuppressWarnings("unchecked") - LinkedList<E> ll = (LinkedList<E>) this.elements.clone(); - clone.elements = ll; - return clone; - } catch (CloneNotSupportedException ex) { - throw new InternalError(); - } - } - -} |