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A Wicket component for Apache Isis' Wicket viewer to render any collection of entities that implement Locatable in a Google map (gmap3 API)

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/*
 *  Copyright 2013~2014 Dan Haywood
 *
 *  Licensed under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License.
 */
package org.isisaddons.wicket.gmap3.cpt.applib;

import org.apache.isis.applib.annotation.Programmatic;

/**
 * Optional SPI service that allows a {@link Locatable} object to be translated/dereferenced to some other object, typically its owner.  The markers on the map then open up the dereferenced object, rather than the Locatable.
 *
 * 
 *     For example, the incode-module-commchannel's PostalAddress implements Locatable, but this service allows the owner of the
 *     PostalAddress to be shown instead.
 * 
 *
 */
public interface LocationDereferencingService {
    @Programmatic
	Object dereference(final Object locatable);
}