1 files changed, 93 insertions, 0 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/iterators/ReadOnlyListIterator.java b/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/iterators/ReadOnlyListIterator.java
new file mode 100644
index 0000000000..c3b2591f44
--- /dev/null
+++ b/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/iterators/ReadOnlyListIterator.java
@@ -0,0 +1,93 @@
+/*******************************************************************************
+ * Copyright (c) 2005, 2007 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.iterators;
+
+import java.util.List;
+import java.util.ListIterator;
+import org.eclipse.jpt.utility.internal.StringTools;
+
+/**
+ * A <code>ReadOnlyListIterator</code> wraps another
+ * <code>ListIterator</code> and removes support for:
+ * 	#remove()
+ * 	#set(Object)
+ * 	#add(Object)
+ */
+public class ReadOnlyListIterator<E>
+	implements ListIterator<E>
+{
+	private final ListIterator<? extends E> nestedListIterator;
+
+
+	/**
+	 * Construct an iterator on the specified list that
+	 * disallows removes, sets, and adds.
+	 */
+	public ReadOnlyListIterator(List<? extends E> list) {
+		this(list.listIterator());
+	}
+
+	/**
+	 * Construct an iterator on the specified list iterator that
+	 * disallows removes, sets, and adds.
+	 */
+	public ReadOnlyListIterator(ListIterator<? extends E> nestedListIterator) {
+		super();
+		this.nestedListIterator = nestedListIterator;
+	}
+
+	public boolean hasNext() {
+		// delegate to the nested iterator
+		return this.nestedListIterator.hasNext();
+	}
+
+	public E next() {
+		// delegate to the nested iterator
+		return this.nestedListIterator.next();
+	}
+
+	public boolean hasPrevious() {
+		// delegate to the nested iterator
+		return this.nestedListIterator.hasPrevious();
+	}
+
+	public E previous() {
+		// delegate to the nested iterator
+		return this.nestedListIterator.previous();
+	}
+
+	public int nextIndex() {
+		// delegate to the nested iterator
+		return this.nestedListIterator.nextIndex();
+	}
+
+	public int previousIndex() {
+		// delegate to the nested iterator
+		return this.nestedListIterator.previousIndex();
+	}
+
+	public void remove() {
+		throw new UnsupportedOperationException();
+	}
+
+	public void set(E o) {
+		throw new UnsupportedOperationException();
+	}
+
+	public void add(E o) {
+		throw new UnsupportedOperationException();
+	}
+
+	@Override
+	public String toString() {
+		return StringTools.buildToStringFor(this, this.nestedListIterator);
+	}
+	
+}