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/*******************************************************************************
* Copyright (c) 2007, 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.utility.internal.model.value;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import org.eclipse.jpt.utility.internal.CollectionTools;
import org.eclipse.jpt.utility.internal.StringTools;
import org.eclipse.jpt.utility.internal.iterators.ReadOnlyIterator;
import org.eclipse.jpt.utility.internal.iterators.ReadOnlyListIterator;
import org.eclipse.jpt.utility.internal.model.AbstractModel;
import org.eclipse.jpt.utility.model.value.ListValueModel;
/**
* Implementation of ListValueModel that can be used for
* returning a list iterator on a static list, but still allows listeners to be added.
* Listeners will NEVER be notified of any changes, because there should be none.
*/
public class StaticListValueModel<E>
extends AbstractModel
implements ListValueModel<E>
{
/** The value. */
protected final List<? extends E> list;
private static final long serialVersionUID = 1L;
/**
* Construct a static ListValueModel for the specified array.
*/
public StaticListValueModel(E[] array) {
this(CollectionTools.list(array));
}
/**
* Construct a static ListValueModel for the specified list.
*/
public StaticListValueModel(List<? extends E> list) {
super();
if (list == null) {
throw new NullPointerException();
}
this.list = list;
}
// ********** ListValueModel implementation **********
public Iterator<E> iterator() {
return new ReadOnlyIterator<E>(this.list.iterator());
}
public ListIterator<E> listIterator() {
return new ReadOnlyListIterator<E>(this.list.listIterator());
}
public int size() {
return this.list.size();
}
public E get(int index) {
return this.list.get(index);
}
public Object[] toArray() {
return this.list.toArray();
}
// ********** Object overrides **********
@Override
public String toString() {
return StringTools.buildToStringFor(this, this.list);
}
}
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