Examples of com.fasterxml.jackson.databind.ser.Serializers

Package com.fasterxml.jackson.databind.ser

Examples of com.fasterxml.jackson.databind.ser.Serializers

com.fasterxml.jackson.databind.ser.Serializers
Interface that defines API for simple extensions that can provide additional serializers for various types. Access is by a single callback method; instance is to either return a configured {@link JsonSerializer} for specified type, or null to indicate that itdoes not support handling of the type. In latter case, further calls can be made for other providers; in former case returned serializer is used for handling of instances of specified type.

  public void setModules() {
    NumberSerializer serializer1 = new NumberSerializer();
    SimpleModule module = new SimpleModule();
    module.addSerializer(Integer.class, serializer1);
    ObjectMapper objectMapper = Jackson2ObjectMapperBuilder.json().modules(Arrays.asList(new Module[]{module})).build();
    Serializers serializers = getSerializerFactoryConfig(objectMapper).serializers().iterator().next();
    assertTrue(serializers.findSerializer(null, SimpleType.construct(Integer.class), null) == serializer1);
  }

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  public void serializerByType() {
    JsonSerializer<Number> serializer = new NumberSerializer();
    ObjectMapper objectMapper = Jackson2ObjectMapperBuilder.json()
        .serializerByType(Boolean.class, serializer).build();
    assertTrue(getSerializerFactoryConfig(objectMapper).hasSerializers());
    Serializers serializers = getSerializerFactoryConfig(objectMapper).serializers().iterator().next();
    assertTrue(serializers.findSerializer(null, SimpleType.construct(Boolean.class), null) == serializer);
  }

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    builder.configure(objectMapper);


    assertTrue(getSerializerFactoryConfig(objectMapper).hasSerializers());
    assertTrue(getDeserializerFactoryConfig(objectMapper).hasDeserializers());


    Serializers serializers = getSerializerFactoryConfig(objectMapper).serializers().iterator().next();
    assertTrue(serializers.findSerializer(null, SimpleType.construct(Class.class), null) == serializer1);
    assertTrue(serializers.findSerializer(null, SimpleType.construct(Boolean.class), null) == serializer2);
    assertNull(serializers.findSerializer(null, SimpleType.construct(Number.class), null));


    Deserializers deserializers = getDeserializerFactoryConfig(objectMapper).deserializers().iterator().next();
    assertTrue(deserializers.findBeanDeserializer(SimpleType.construct(Date.class), null, null) == deserializer);


    assertTrue(annotationIntrospector == objectMapper.getSerializationConfig().getAnnotationIntrospector());

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    this.factory.setModules(Arrays.asList(new Module[] {module}));
    this.factory.afterPropertiesSet();
    ObjectMapper objectMapper = this.factory.getObject();


    Serializers serializers = getSerializerFactoryConfig(objectMapper).serializers().iterator().next();
    assertTrue(serializers.findSerializer(null, SimpleType.construct(Integer.class), null) == serializer1);
  }

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    assertTrue(objectMapper == this.factory.getObject());
    assertTrue(getSerializerFactoryConfig(objectMapper).hasSerializers());
    assertTrue(getDeserializerFactoryConfig(objectMapper).hasDeserializers());


    Serializers serializers = getSerializerFactoryConfig(objectMapper).serializers().iterator().next();
    assertTrue(serializers.findSerializer(null, SimpleType.construct(Class.class), null) == serializer1);
    assertTrue(serializers.findSerializer(null, SimpleType.construct(Boolean.class), null) == serializer2);
    assertNull(serializers.findSerializer(null, SimpleType.construct(Number.class), null));


    assertTrue(annotationIntrospector == objectMapper.getSerializationConfig().getAnnotationIntrospector());
    assertTrue(annotationIntrospector == objectMapper.getDeserializationConfig().getAnnotationIntrospector());


    assertTrue(objectMapper.getSerializationConfig().isEnabled(SerializationFeature.FAIL_ON_EMPTY_BEANS));

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Related Classes of com.fasterxml.jackson.databind.ser.Serializers

org.springframework.http.converter.json.Jackson2ObjectMapperBuilderTests

org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBeanTests

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