package speiger.src.collections.PACKAGE.sets;

import java.util.Iterator;
import java.util.Objects;
import java.util.Set;

import speiger.src.collections.PACKAGE.collections.ABSTRACT_COLLECTION;
import speiger.src.collections.PACKAGE.collections.ITERATOR;

public abstract class ABSTRACT_SET KEY_GENERIC_TYPE extends ABSTRACT_COLLECTION KEY_GENERIC_TYPE implements SET KEY_GENERIC_TYPE
{
	@Override
	public abstract ITERATOR KEY_GENERIC_TYPE iterator();
	
	@Override
	public int hashCode() {
    	int hashCode = 1;
    	ITERATOR KEY_GENERIC_TYPE i = iterator();
    	while(i.hasNext())
    		hashCode = 31 * hashCode + KEY_TO_HASH(i.NEXT());
    	return hashCode;
	}
	
	@Override
	public boolean equals(Object o) {
    	if (o == this)
    		return true;
    	if (!(o instanceof Set))
    		return false;
    	Set<?> l = (Set<?>)o;
    	if(l.size() != size()) return false;
#if !TYPE_OBJECT    	
		if(l instanceof SET)
		{
	    	ITERATOR e1 = iterator();
	    	ITERATOR e2 = ((SET)l).iterator();
	    	while (e1.hasNext() && e2.hasNext()) {
	    		if(!(KEY_EQUALS(e1.NEXT(), e2.NEXT())))
	    			return false;
	    	}
	    	return !(e1.hasNext() || e2.hasNext());
		}
#endif
		Iterator<CLASS_TYPE> e1 = iterator();
		Iterator<?> e2 = l.iterator();
		while (e1.hasNext() && e2.hasNext()) {
			if(!Objects.equals(e1.next(), e2.next()))
				return false;
		}
		return !(e1.hasNext() || e2.hasNext());
	}
}