/*

 * Created on Feb 22, 2005

 *

 * @author Alan Krempler

 */

package isac.util.usersettings;

import java.io.Serializable;

import java.util.HashMap;

/**

 * Class for storing/retrieving user settings, i.e. settings which can be set

 * manually by the user as opposed to the

 * {@link isac.util.usersettings.UserModel#}, which is an abstraction of the

 * system's expeience with a user and canot be altered manually. As there is no

 * fixed set of user settings, you can regard this class as a simple storage

 * backend for key/value pairs.

 * 

 * @author Alan Krempler

 *  

 */

public class UserSettings implements Serializable {

    private HashMap storage_;

    UserSettings() {

        storage_ = new HashMap();

    }

    /**

     * @param key

     *            A string key

     * @return The string value associated with the key parameter; null, if

     *         nothing is stored under this key

     */

    public String getValue(String key) {

        return (String) storage_.get(key);

    }

    /**

     * @param key

     *            The key under which "value" is to be stored. Existing data

     *            unde the same key will be replaced.

     * @param value

     *            The value to be stored under "key"

     * @return true in case of success, false in case of error, for example if

     *         trying to replace stored values without proper permissions

     */

    public boolean setValue(String key, String value) {

        storage_.put(key, value);

        return true;

    }

}