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Library providing immutable/persistent collection classes for Java. While collections are immutable they provide methods for adding and removing values by creating new modified copies of themselves. Each copy shares almost all of its structure with other copies to minimize memory consumption.

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///###////////////////////////////////////////////////////////////////////////
//
// Burton Computer Corporation
// http://www.burton-computer.com
//
// Copyright (c) 2017, Burton Computer Corporation
// All rights reserved.
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package org.javimmutable.collections.serialization;

import org.javimmutable.collections.JImmutableMap;
import org.javimmutable.collections.JImmutableSet;
import org.javimmutable.collections.JImmutableSetMap;
import org.javimmutable.collections.hash.JImmutableHashMap;
import org.javimmutable.collections.hash.JImmutableHashSet;
import org.javimmutable.collections.setmap.JImmutableTemplateSetMap;

import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;

/**
 * Serialization proxy class to safely serialize immutable collection.
 */
@SuppressWarnings("unchecked")
public class JImmutableTemplateSetMapProxy
    extends AbstractJImmutableSetMapProxy
{
    private static final long serialVersionUID = -121805;

    public JImmutableTemplateSetMapProxy()
    {
        super(JImmutableTemplateSetMap.of(JImmutableHashMap.of(), JImmutableHashSet.of()));
    }

    public JImmutableTemplateSetMapProxy(JImmutableTemplateSetMap map)
    {
        super(map);
    }

    @Override
    protected JImmutableSetMap readMap(ObjectInput in)
        throws IOException, ClassNotFoundException
    {
        JImmutableMap emptyMap = (JImmutableMap)in.readObject();
        JImmutableSet emptySet = (JImmutableSet)in.readObject();
        return JImmutableTemplateSetMap.of(emptyMap, emptySet);
    }

    @Override
    protected void writeMap(ObjectOutput out)
        throws IOException
    {
        JImmutableTemplateSetMap setMap = (JImmutableTemplateSetMap)map;
        out.writeObject(setMap.getEmptyMap());
        out.writeObject(setMap.getEmptySet());
    }
}