package org.litesoft.GWT.forms.client;

import java.util.*;

public interface CtrlBitsSource
{
    public int getCtrlBits();

    public class Invariant implements CtrlBitsSource
    {
        public static CtrlBitsSource of( int pCtrlBits )
        {
            return fromCache( pCtrlBits );
        }

        private static CtrlBitsSource fromCache( Integer pKey )
        {
            Invariant zInvariant = INSTANCES.get( pKey );
            if ( zInvariant == null )
            {
                INSTANCES.put( pKey, zInvariant = new Invariant( pKey ) );
            }
            return zInvariant;
        }

        private static final Map<Integer, Invariant> INSTANCES = new HashMap<Integer, Invariant>();

        private int mCtrlBits;

        private Invariant( int pCtrlBits )
        {
            mCtrlBits = pCtrlBits;
        }

        public int getCtrlBits()
        {
            return mCtrlBits;
        }
    }
}