Examples of com.facebook.presto.jdbc.internal.jackson.databind.jsontype.TypeDeserializer

Package com.facebook.presto.jdbc.internal.jackson.databind.jsontype

Examples of com.facebook.presto.jdbc.internal.jackson.databind.jsontype.TypeDeserializer

com.facebook.presto.jdbc.internal.jackson.databind.jsontype.TypeDeserializer
Interface for deserializing type information from JSON content, to type-safely deserialize data into correct polymorphic instance (when type inclusion has been enabled for type handled).
Separate deserialization methods are needed because serialized form for inclusion mechanism {@link As#PROPERTY}is slighty different if value is not expressed as JSON Object: and as such both type deserializer and serializer need to JSON Object form (array, object or other (== scalar)) being used.

    @Override
    protected T _deserializeFromSingleValue(JsonParser jp, DeserializationContext ctxt)
            throws IOException, JsonProcessingException
    {
        JsonDeserializer<?> valueDes = _valueDeserializer;
        final TypeDeserializer typeDeser = _typeDeserializerForValue;
        JsonToken t = jp.getCurrentToken();


        Object value;
        
        if (t == JsonToken.VALUE_NULL) {

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    @Override
    public JsonDeserializer<?> createContextual(DeserializationContext ctxt,
            BeanProperty property) throws JsonMappingException
    {
        JsonDeserializer<?> deser = _valueDeserializer;
        TypeDeserializer typeDeser = _typeDeserializerForValue;
        if (deser == null) {
            deser = ctxt.findContextualValueDeserializer(_containerType.getContentType(), property);
        }
        if (typeDeser != null) {
            typeDeser = typeDeser.forProperty(property);
        }
        if (deser == _valueDeserializer && typeDeser == _typeDeserializerForValue) {
            return this;
        }
        return withResolved(typeDeser, deser);

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        JsonDeserializer<?> ed = elementDeserializer;
        if (ed == null) {
            ed = ctxt.findContextualValueDeserializer(type.getContentType(), property);
        }
        // Type deserializer is slightly different; must be passed, but needs to become contextual:
        TypeDeserializer etd = elementTypeDeserializer;
        if (etd != null && property != null) {
            etd = etd.forProperty(property);
        }
        return (_createContextual(type, kd, etd, ed, creatorMethod));
    }

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        // If yes, we are mostly done:
        type = modifyTypeByAnnotation(ctxt, param, type);


        // Type deserializer: either comes from property (and already resolved)
        TypeDeserializer typeDeser = (TypeDeserializer) type.getTypeHandler();
        // or if not, based on type being referenced:
        if (typeDeser == null) {
            typeDeser = findTypeDeserializer(config, type);
        }
        // Note: contextualization of typeDeser _should_ occur in constructor of CreatorProperty

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        JavaType elemType = type.getContentType();
        
        // Very first thing: is deserializer hard-coded for elements?
        JsonDeserializer<Object> contentDeser = elemType.getValueHandler();
        // Then optional type info (1.5): if type has been resolved, we may already know type deserializer:
        TypeDeserializer elemTypeDeser = elemType.getTypeHandler();
        // but if not, may still be possible to find:
        if (elemTypeDeser == null) {
            elemTypeDeser = findTypeDeserializer(config, elemType);
        }
        // 23-Nov-2010, tatu: Custom array deserializer?

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        // Very first thing: is deserializer hard-coded for elements?
        JsonDeserializer<Object> contentDeser = contentType.getValueHandler();
        final DeserializationConfig config = ctxt.getConfig();


        // Then optional type info (1.5): if type has been resolved, we may already know type deserializer:
        TypeDeserializer contentTypeDeser = contentType.getTypeHandler();
        // but if not, may still be possible to find:
        if (contentTypeDeser == null) {
            contentTypeDeser = findTypeDeserializer(config, contentType);
        }

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        // Very first thing: is deserializer hard-coded for elements?
        JsonDeserializer<Object> contentDeser = contentType.getValueHandler();
        final DeserializationConfig config = ctxt.getConfig();


        // Then optional type info (1.5): if type has been resolved, we may already know type deserializer:
        TypeDeserializer contentTypeDeser = contentType.getTypeHandler();
        // but if not, may still be possible to find:
        if (contentTypeDeser == null) {
            contentTypeDeser = findTypeDeserializer(config, contentType);
        }
        JsonDeserializer<?> deser = _findCustomCollectionLikeDeserializer(type, config, beanDesc,

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        JsonDeserializer<Object> contentDeser = (JsonDeserializer<Object>) contentType.getValueHandler();
        
        // Ok: need a key deserializer (null indicates 'default' here)
        KeyDeserializer keyDes = (KeyDeserializer) keyType.getValueHandler();
        // Then optional type info (1.5); either attached to type, or resolved separately:
        TypeDeserializer contentTypeDeser = contentType.getTypeHandler();
        // but if not, may still be possible to find:
        if (contentTypeDeser == null) {
            contentTypeDeser = findTypeDeserializer(config, contentType);
        }

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        if (keyDes == null) {
            keyDes = p.findKeyDeserializer(config, keyType, property);
        }
        */
        // Then optional type info (1.5); either attached to type, or resolve separately:
        TypeDeserializer contentTypeDeser = contentType.getTypeHandler();
        // but if not, may still be possible to find:
        if (contentTypeDeser == null) {
            contentTypeDeser = findTypeDeserializer(config, contentType);
        }
        JsonDeserializer<?> deser = _findCustomMapLikeDeserializer(type, config,

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             *    information to use for polymorphic members; and specifically types for
             *    collection values (contents).
             *    ... but only applies to members (fields, methods), not classes
             */
            if (member instanceof AnnotatedMember) {
              TypeDeserializer contentTypeDeser = findPropertyContentTypeDeserializer(
                      ctxt.getConfig(), type, (AnnotatedMember) member);              
              if (contentTypeDeser != null) {
                  type = type.withContentTypeHandler(contentTypeDeser);
              }
            }
        }
        TypeDeserializer valueTypeDeser;


        if (member instanceof AnnotatedMember) { // JAXB allows per-property annotations
            valueTypeDeser = findPropertyTypeDeserializer(ctxt.getConfig(),
                    type, (AnnotatedMember) member);
        } else { // classes just have Jackson annotations

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