johnzon-jsonb/src/test/java/org/apache/johnzon/jsonb/InterfaceMappingTest.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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.apache.johnzon.jsonb;

import static java.util.Collections.singletonMap;
import static org.junit.Assert.assertEquals;

import jakarta.json.bind.Jsonb;
import jakarta.json.bind.JsonbBuilder;
import jakarta.json.bind.JsonbConfig;

import org.junit.Test;

public class InterfaceMappingTest {
    @Test
    public void mapInterface() throws Exception {
        try (final Jsonb jsonb = JsonbBuilder.create(new JsonbConfig()
            .setProperty("johnzon.interfaceImplementationMapping", singletonMap(SomeItf.class, SomeImpl.class)))) {
            assertEquals("ok", jsonb.fromJson("{\"value\":\"ok\"}", SomeItf.class).getValue());
        }
    }

    public interface SomeItf {
        String getValue();
        void setValue(String value);
    }

    public static class SomeImpl implements SomeItf {
        private String value;

        @Override
        public String getValue() {
            return value;
        }

        @Override
        public void setValue(final String value) {
            this.value = value;
        }
    }
}