CustomizableImpl.java

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/* *********************************************************************** *
 * project: org.matsim.*
 * *********************************************************************** *
 *                                                                         *
 * copyright       : (C) 2007 by the members listed in the COPYING,        *
 *                   LICENSE and WARRANTY file.                            *
 * email           : info at matsim dot org                                *
 *                                                                         *
 * *********************************************************************** *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *   See also COPYING, LICENSE and WARRANTY file                           *
 *                                                                         *
 * *********************************************************************** */

package org.matsim.core.scenario;

import java.util.HashMap;
import java.util.Map;

import org.matsim.api.core.v01.Customizable;

final class CustomizableImpl implements Customizable {
    
    CustomizableImpl() {} 

    // member variables

    private Map<String,Object> custom_attributes = null;

    // interface implementation

    @Override
    public final Map<String,Object> getCustomAttributes() {
        if (this.custom_attributes == null) {
            this.custom_attributes = new HashMap<>();
        }
        return this.custom_attributes;
    }
}