1 files changed, 0 insertions, 112 deletions
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/iterators/PeekableIterator.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/iterators/PeekableIterator.java
deleted file mode 100644
index 1a1f6284ae..0000000000
--- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/iterators/PeekableIterator.java
+++ /dev/null
@@ -1,112 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2005, 2009 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.common.utility.internal.iterators;
-
-import java.util.Iterator;
-import java.util.NoSuchElementException;
-import org.eclipse.jpt.common.utility.internal.StringTools;
-
-/**
- * A <code>PeekableIterator</code> wraps another {@link Iterator}
- * and allows a {@link #peek()} at the next element to be 
- * returned by {@link #next()}.
- * <p>
- * One, possibly undesirable, side-effect of using this iterator is that
- * the nested iterator's <code>next()</code> method will be invoked
- * <em>before</em> the peekable iterator's {@link #next()}
- * method is invoked. This is because the "next" element must be
- * pre-loaded for the {@link #peek()} method.
- * This also prevents a peekable iterator from supporting the optional
- * {@link #remove()} method.
- * 
- * @param <E> the type of elements returned by the iterator
- * 
- * @see org.eclipse.jpt.common.utility.internal.iterables.PeekableIterable
- */
-public class PeekableIterator<E>
-	implements Iterator<E>
-{
-	private final Iterator<? extends E> iterator;
-	private E next;
-	private boolean done;
-
-
-	/**
-	 * Construct a peekable iterator that wraps the specified
-	 * iterable.
-	 */
-	public PeekableIterator(Iterable<? extends E> iterable) {
-		this(iterable.iterator());
-	}
-
-	/**
-	 * Construct a peekable iterator that wraps the specified nested
-	 * iterator.
-	 */
-	public PeekableIterator(Iterator<? extends E> iterator) {
-		super();
-		this.iterator = iterator;
-		this.done = false;
-		this.loadNext();
-	}
-
-	public boolean hasNext() {
-		return ! this.done;
-	}
-
-	public E next() {
-		if (this.done) {
-			throw new NoSuchElementException();
-		}
-		E result = this.next;
-		this.loadNext();
-		return result;
-	}
-
-	/**
-	 * Return the element that will be returned by the next call to the
-	 * {@link #next()} method, without advancing past it.
-	 */
-	public E peek() {
-		if (this.done) {
-			throw new NoSuchElementException();
-		}
-		return this.next;
-	}
-
-	/**
-	 * Because we need to pre-load the next element
-	 * to be returned, we cannot support the {@link #remove()}
-	 * method.
-	 */
-	public void remove() {
-		throw new UnsupportedOperationException();
-	}
-
-	/**
-	 * Load next with the next entry from the nested
-	 * iterator. If there are none, {@link #next} is set to <code>null</code>
-	 * and {@link #done} is set to <code>true</code>.
-	 */
-	private void loadNext() {
-		if (this.iterator.hasNext()) {
-			this.next = this.iterator.next();
-		} else {
-			this.next = null;
-			this.done = true;
-		}
-	}
-
-	@Override
-	public String toString() {
-		return StringTools.buildToStringFor(this, this.iterator);
-	}
-
-}