import java.util.Collection;
import java.util.Map;
import java.util.Set;

/**
 * An abstract class for a class implementing a map in which the most
 * important operations of the Map interface are supported, but all others are
 * not supported and result in errors if called. Dummy methods for unsupported
 * operations are defined here.
 * 
 * @author Sean Barker
 * @param <K> The type of the keys stored in the map.
 * @param <V> The type of the values stored in the map.
 */
public abstract class AbstractSimpleMap<K, V> implements Map<K, V> {

    @Override
    public void putAll(Map<? extends K, ? extends V> m) {
        throw new UnsupportedOperationException("operation not supported");
    }

    @Override
    public void clear() {
        throw new UnsupportedOperationException("operation not supported");
    }

    @Override
    public Set<K> keySet() {
        throw new UnsupportedOperationException("operation not supported");
    }

    @Override
    public boolean containsValue(Object value) {
        throw new UnsupportedOperationException("operation not supported");
    }

    @Override
    public Collection<V> values() {
        throw new UnsupportedOperationException("operation not supported");
    }

    @Override
    public Set<Entry<K, V>> entrySet() {
        throw new UnsupportedOperationException("operation not supported");
    }

}