Application: gvSIG desktop » Library: org.gvsig.tools

package org.gvsig.tools.util;

import java.util.Iterator;

import java.util.Set;

/**

 *

 * @author jjdelcerro

 */

public class UnmodifiableBasicSetChained<V> implements UnmodifiableBasicSet<V> {

    private final UnmodifiableBasicSet<V>[] sets;

    public UnmodifiableBasicSetChained(UnmodifiableBasicSet<V>... sets) {

        this.sets = sets;

    }

    @Override

    public boolean contains(V value) {

        for (UnmodifiableBasicSet<V> set : sets) {

            if( set.contains(value) ) {

                return true;

            }

        }

        return false;

    }

    @Override

    public boolean isEmpty() {

        for (UnmodifiableBasicSet<V> set : sets) {

            if( !set.isEmpty() ) {

                return false;

            }

        }

        return true;

    }

    @Override

    public int size() {

        int sz = 0;

        for (UnmodifiableBasicSet<V> set : sets) {

            sz += set.size();

        }

        return sz;

    }

    @Override

    public Iterator<V> iterator() {

        Iterator[] its = new Iterator[this.sets.length];

        for (int i = 0; i < this.sets.length; i++) {

            its[i] = this.sets[i].iterator();

        }

        return new ChainedIterator<>(its);

    }

}