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package org.gvsig.fmap.data.feature.db;

import java.util.ArrayList;

import java.util.Collection;

import java.util.Iterator;

import org.gvsig.fmap.dal.feature.Feature;

import org.gvsig.fmap.dal.feature.impl.AbstractFeatureCollection;

public abstract class DBDataFeatureCollection extends

                AbstractFeatureCollection {

        protected boolean isStringEmpty(String s) {

                return s == null || s == "";

        }

        public boolean add(Object o) {

                throw new UnsupportedOperationException();

        }

        public boolean remove(Object o) {

                throw new UnsupportedOperationException();

        }

        public boolean addAll(Collection c) {

                throw new UnsupportedOperationException();

        }

        public boolean removeAll(Collection c) {

                throw new UnsupportedOperationException();

        }

        public boolean retainAll(Collection c) {

                throw new UnsupportedOperationException();

        }

        public void clear() {

                throw new UnsupportedOperationException();

        }

        public boolean contains(Object o) {

                checkModified();

                //FIXME: Arreglar (lanzar select directamente)

                Iterator iterator= this.iterator();

                while(iterator.hasNext()){

                        Feature feature=(Feature)iterator.next();

                        if (feature.getReference().equals(((Feature)o).getReference())){

                                return true;

                        }

                }

                return false;

        }

        public Object[] toArray() {

                checkModified();

                ArrayList features= new ArrayList();

                Iterator iterator= this.iterator();

                while(iterator.hasNext()){

                        Feature feature=(Feature)iterator.next();

                        features.add(feature);

                }

                return features.toArray();

        }

        public Object[] toArray(Object[] a) {

                checkModified();

                ArrayList features= new ArrayList();

                Iterator iterator= this.iterator();

                while(iterator.hasNext()){

                        Feature feature=(Feature)iterator.next();

                        features.add(feature);

                }

                return features.toArray(a);

        }

        public boolean containsAll(Collection c) {

                checkModified();

                Iterator iter = c.iterator();

                while (iter.hasNext()){

                        if (!this.contains(iter.next())){

                                return false;

                        }

                }

                return true;

        }

}