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package net.dongliu.commons.collection;

import java.util.Collection;
import java.util.Iterator;
import java.util.function.Predicate;

/**
 * EnhancedCollection
 *
 * @author Liu Dong
 */
class ForwardingCollection implements ExCollection {
    private final Collection collection;

    ForwardingCollection(Collection collection) {
        this.collection = collection;
    }

    @Override
    public int hashCode() {
        return collection.hashCode();
    }

    @Override
    public int size() {
        return collection.size();
    }

    @Override
    public boolean isEmpty() {
        return collection.isEmpty();
    }

    @Override
    public boolean contains(Object o) {
        return collection.contains(o);
    }

    @Override
    public Iterator iterator() {
        return collection.iterator();
    }

    @Override
    public Object[] toArray() {
        return collection.toArray();
    }

    @Override
    public  T1[] toArray(T1[] a) {
        return collection.toArray(a);
    }

    @Override
    public boolean add(T t) {
        return collection.add(t);
    }

    @Override
    public boolean remove(Object o) {
        return collection.remove(o);
    }

    @Override
    public boolean containsAll(Collection c) {
        return collection.containsAll(c);
    }

    @Override
    public boolean addAll(Collection c) {
        return collection.addAll(c);
    }

    @Override
    public boolean removeAll(Collection c) {
        return collection.removeAll(c);
    }

    @Override
    public boolean removeIf(Predicate filter) {
        return collection.removeIf(filter);
    }

    @Override
    public boolean retainAll(Collection c) {
        return collection.retainAll(c);
    }

    @Override
    public void clear() {
        collection.clear();
    }

    @Override
    public boolean equals(Object o) {
        return collection.equals(o);
    }
}