EncryptedPreferences/src/main/java/ru/bvn13/encryptedpreferences/WrappedPreferences.java

package ru.bvn13.encryptedpreferences;

import java.util.prefs.*;

/**
 * Created by bvn13 on 22.06.2017.
 */
abstract public class WrappedPreferences extends DelegatedPreferences
{
    protected WrappedPreferences( AbstractPreferences parent, String name,
                                  AbstractPreferences target ) {
        super( parent, name, target );
    }

    protected AbstractPreferences childSpi( String name ) {
        return wrapChild( this, name,
                (AbstractPreferences)super.childSpi( name ) );
    }

    public WrappedPreferences wrapChild( WrappedPreferences parent,
                                         String name,
                                         AbstractPreferences child ) {
        throw new UnsupportedOperationException(
                "You must override WrappedPreferences.wrapChild()" );
    }
}