org.pvalsecc.misc.MatchAllSet Maven / Gradle / Ivy

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/*
 * Copyright (C) 2008 Patrick Valsecchi
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  U
 */
package org.pvalsecc.misc;

import java.util.Set;
import java.util.Iterator;
import java.util.Collection;

/**
 * A un-modifiable set that always returns true when {@link #contains} or
 * {@link #containsAll} is called.
 * @param 
 */
public class MatchAllSet implements Set {
    public int size() {
        throw new UnsupportedOperationException();
    }

    public boolean isEmpty() {
        return false;
    }

    public boolean contains(Object o) {
        return true;
    }

    public Iterator iterator() {
        throw new UnsupportedOperationException();
    }

    public Object[] toArray() {
        throw new UnsupportedOperationException();
    }

    public  T[] toArray(T[] a) {
        throw new UnsupportedOperationException();
    }

    public boolean add(T o) {
        throw new UnsupportedOperationException();
    }

    public boolean remove(Object o) {
        throw new UnsupportedOperationException();
    }

    public boolean containsAll(Collection c) {
        return true;
    }

    public boolean addAll(Collection c) {
        throw new UnsupportedOperationException();
    }

    public boolean retainAll(Collection c) {
        throw new UnsupportedOperationException();
    }

    public boolean removeAll(Collection c) {
        throw new UnsupportedOperationException();
    }

    public void clear() {
        throw new UnsupportedOperationException();
    }
}