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package org.apache.juneau.swap;

import org.apache.juneau.*;
import org.apache.juneau.collections.*;

/**
 * Abstract subclass for object swaps that swap objects for object maps.
 *
 * <h5 class='section'>Example:</h5>
 * <p class='bjava'>
 * 	<jc>// A swap that converts beans into generic maps.</jc>
 * 	<jk>public class</jk> MyBeanSwap <jk>extends</jk> MapSwap&lt;<jk>byte</jk>[]&gt; {
 *
 * 		<ja>@Override</ja>
 * 		<jk>public</jk> JsonMap swap(BeanSession <jv>session</jv>, MyBean <jv>bean</jv>) <jk>throws</jk> Exception {
 * 			<jk>return</jk> JsonMap.<jsm>of</jsm>(<js>"foo"</js>, <jv>bean</jv>.getFoo());
 * 		}
 *
 * 		<ja>@Override</ja>
 * 		<jk>public</jk> MyBean unswap(BeanSession <jv>session</jv>, JsonMap <jv>map</jv>, ClassMeta&lt;?&gt; <jv>hint</jv>) <jk>throws</jk> Exception {
 * 			<jk>return</jk> new</jk> MyBean(<jv>map</jv>.get(<js>"foo"</js>));
 * 		}
 * 	}
 *
 * 	<jc>// Use it to serialize a byte array.</jc>
 * 	WriterSerializer <jv>serializer</jv> = JsonSerializer.<jsm>create</jsm>().simple().swaps(MyBeanSwap.<jk>class</jk>).build();
 * 	String <jv>json</jv> = <jv>serializer</jv>.serialize(<jk>new</jk> MyBean(<js>"bar"</js>));  <jc>// Produces "{foo:'bar'}"</jc>
 * </p>
 *
 * <ul class='seealso'>
 * 	<li class='link'>{@doc jm.Swaps}
 * 	<li class='extlink'>{@source}
 * </ul>
 *
 * @param <T> The normal form of the class.
 */
public abstract class MapSwap<T> extends ObjectSwap<T,JsonMap> {

	@Override /* ObjectSwap */
	public JsonMap swap(BeanSession session, T o) throws Exception {
		return super.swap(session, o);
	}

	@Override /* ObjectSwap */
	public T unswap(BeanSession session, JsonMap f, ClassMeta<?> hint) throws Exception {
		return super.unswap(session, f, hint);
	}
}
