Examples of com.fasterxml.jackson.databind.module.SimpleModule

Package com.fasterxml.jackson.databind.module

Examples of com.fasterxml.jackson.databind.module.SimpleModule

com.fasterxml.jackson.databind.module.SimpleModule
Simple {@link Module} implementation that allows registrationof serializers and deserializers, and bean serializer and deserializer modifiers.

    // [Issue#227]
    public void testGenericEnumSerializer() throws Exception
    {
        // By default, serialize using name
        ObjectMapper m = new ObjectMapper();
        SimpleModule module = new SimpleModule("foobar");
        module.addSerializer(Enum.class, new LowerCasingEnumSerializer());
        m.registerModule(module);
        assertEquals(quote("b"), m.writeValueAsString(TestEnum.B));
    }

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    {
        ObjectMapper mapper = new ObjectMapper();


        mapper.enableDefaultTypingAsProperty(ObjectMapper.DefaultTyping.NON_FINAL, "@class");


         SimpleModule testModule = new SimpleModule("MyModule", new Version(1, 0, 0, null, "TEST", "TEST"));
         testModule.addDeserializer(SavedCookie.class, new SavedCookieDeserializer());
         mapper.registerModule(testModule);


         SavedCookie savedCookie = new SavedCookie("key", "v");
         String json = mapper.writeValueAsString(savedCookie);
         SavedCookie out = mapper.reader(SavedCookie.class).readValue(json);

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     */


    public void testCustomDeserializers() throws Exception
    {
        ObjectMapper mapper = new ObjectMapper();
        SimpleModule testModule = new SimpleModule("test", Version.unknownVersion());
        testModule.addDeserializer(NonDeserializable[].class, new CustomNonDeserArrayDeserializer());
        mapper.registerModule(testModule);
        
        NonDeserializable[] result = mapper.readValue("[\"a\"]", NonDeserializable[].class);
        assertNotNull(result);
        assertEquals(1, result.length);

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    // for [JACKSON-670]
    public void testEmptyBean() throws Exception
    {
        ObjectMapper mapper = new ObjectMapper();
        mapper.registerModule(new SimpleModule("test", Version.unknownVersion()) {
            @Override
            public void setupModule(SetupContext context)
            {
                super.setupModule(context);
                context.addBeanSerializerModifier(new EmptyBeanModifier());

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    // [Issue#539]
    public void testEmptyBean539() throws Exception
    {
        ObjectMapper mapper = new ObjectMapper();
        mapper.registerModule(new SimpleModule("test", Version.unknownVersion()) {
            @Override
            public void setupModule(SetupContext context)
            {
                super.setupModule(context);
                context.addBeanSerializerModifier(new EmptyBeanModifier539());

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    // [Issue#121]


    public void testModifyArraySerializer() throws Exception
    {
        ObjectMapper mapper = new ObjectMapper();
        mapper.registerModule(new SimpleModule("test")
            .setSerializerModifier(new ArraySerializerModifier()));
        assertEquals("123", mapper.writeValueAsString(new Integer[] { 1, 2 }));
    }

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    }


    public void testModifyCollectionSerializer() throws Exception
    {
        ObjectMapper mapper = new ObjectMapper();
        mapper.registerModule(new SimpleModule("test")
            .setSerializerModifier(new CollectionSerializerModifier()));
        assertEquals("123", mapper.writeValueAsString(new ArrayList<Integer>()));
    }

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    }


    public void testModifyMapSerializer() throws Exception
    {
        ObjectMapper mapper = new ObjectMapper();
        mapper.registerModule(new SimpleModule("test")
            .setSerializerModifier(new MapSerializerModifier()));
        assertEquals("123", mapper.writeValueAsString(new HashMap<String,String>()));
    }

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    }


    public void testModifyEnumSerializer() throws Exception
    {
        ObjectMapper mapper = new ObjectMapper();
        mapper.registerModule(new SimpleModule("test")
            .setSerializerModifier(new EnumSerializerModifier()));
        assertEquals("123", mapper.writeValueAsString(EnumABC.C));
    }

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    }


    public void testModifyKeySerializer() throws Exception
    {
        ObjectMapper mapper = new ObjectMapper();
        mapper.registerModule(new SimpleModule("test")
            .setSerializerModifier(new KeySerializerModifier()));
        Map<String,Integer> map = new HashMap<String,Integer>();
        map.put("x", 3);
        assertEquals("{\"foo\":3}", mapper.writeValueAsString(map));
    }

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