Examples of com.fasterxml.jackson.databind.type.ClassKey

Package com.fasterxml.jackson.databind.type

Examples of com.fasterxml.jackson.databind.type.ClassKey

com.fasterxml.jackson.databind.type.ClassKey
Key class, used as an efficient and accurate key for locating per-class values, such as {@link com.fasterxml.jackson.databind.JsonSerializer}s.
The reason for having a separate key class instead of directly using {@link Class} as key is mostlyto allow for redefining hashCode method -- for some strange reason, {@link Class} does notredefine {@link Object#hashCode} and thus uses identityhash, which is pretty slow. This makes key access using {@link Class} unnecessarily slow.
Note: since class is not strictly immutable, caller must know what it is doing, if changing field values.

     * @param mixinSource Class (or interface) whose annotations are to
     *   be "added" to target's annotations, overriding as necessary
     */
    public final void addMixInAnnotations(Class<?> target, Class<?> mixinSource)
    {
        _mixInAnnotations.put(new ClassKey(target), mixinSource);
    }

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    {
        _mixInAnnotations.put(new ClassKey(target), mixinSource);
    }


    public final Class<?> findMixInClassFor(Class<?> cls) {
        return (_mixInAnnotations == null) ? null : _mixInAnnotations.get(new ClassKey(cls));
    }

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     * Method that will check if there are "mix-in" classes (with mix-in
     * annotations) for given class
     */
    @Override
    public final Class<?> findMixInClassFor(Class<?> cls) {
        return (_mixInAnnotations == null) ? null : _mixInAnnotations.get(new ClassKey(cls));
    }

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    {  
        JsonDeserializer<Object> subDeser;


        // First: maybe we have already created sub-type deserializer?
        synchronized (this) {
            subDeser = (_subDeserializers == null) ? null : _subDeserializers.get(new ClassKey(bean.getClass()));
        }
        if (subDeser != null) {
            return subDeser;
        }
        // If not, maybe we can locate one. First, need provider
        JavaType type = ctxt.constructType(bean.getClass());
        /* 30-Jan-2012, tatu: Ideally we would be passing referring
         *   property; which in theory we could keep track of via
         *   ResolvableDeserializer (if we absolutely must...).
         *   But for now, let's not bother.
         */
//        subDeser = ctxt.findValueDeserializer(type, _property);
        subDeser = ctxt.findRootValueDeserializer(type);
        // Also, need to cache it
        if (subDeser != null) {
            synchronized (this) {
                if (_subDeserializers == null) {
                    _subDeserializers = new HashMap<ClassKey,JsonDeserializer<Object>>();;
                }
                _subDeserializers.put(new ClassKey(bean.getClass()), subDeser);
            }            
        }
        return subDeser;
    }

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    {  
        JsonDeserializer<Object> subDeser;


        // First: maybe we have already created sub-type deserializer?
        synchronized (this) {
            subDeser = (_subDeserializers == null) ? null : _subDeserializers.get(new ClassKey(bean.getClass()));
        }
        if (subDeser != null) {
            return subDeser;
        }
        // If not, maybe we can locate one. First, need provider
        JavaType type = ctxt.constructType(bean.getClass());
        /* 30-Jan-2012, tatu: Ideally we would be passing referring
         *   property; which in theory we could keep track of via
         *   ResolvableDeserializer (if we absolutely must...).
         *   But for now, let's not bother.
         */
//        subDeser = ctxt.findValueDeserializer(type, _property);
        subDeser = ctxt.findRootValueDeserializer(type);
        // Also, need to cache it
        if (subDeser != null) {
            synchronized (this) {
                if (_subDeserializers == null) {
                    _subDeserializers = new HashMap<ClassKey,JsonDeserializer<Object>>();;
                }
                _subDeserializers.put(new ClassKey(bean.getClass()), subDeser);
            }            
        }
        return subDeser;
    }

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        return findRootName(rootType.getRawClass(), config);
    }


    public SerializableString findRootName(Class<?> rootType, MapperConfig<?> config)
    {
        ClassKey key = new ClassKey(rootType);
        SerializableString name = _rootNames.get(key);
        if (name != null) {
            return name;
        }
        BeanDescription beanDesc = config.introspectClassAnnotations(rootType);

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    {  
        JsonDeserializer<Object> subDeser;


        // First: maybe we have already created sub-type deserializer?
        synchronized (this) {
            subDeser = (_subDeserializers == null) ? null : _subDeserializers.get(new ClassKey(bean.getClass()));
        }
        if (subDeser != null) {
            return subDeser;
        }
        // If not, maybe we can locate one. First, need provider
        JavaType type = ctxt.constructType(bean.getClass());
        /* 30-Jan-2012, tatu: Ideally we would be passing referring
         *   property; which in theory we could keep track of via
         *   ResolvableDeserializer (if we absolutely must...).
         *   But for now, let's not bother.
         */
//        subDeser = ctxt.findValueDeserializer(type, _property);
        subDeser = ctxt.findRootValueDeserializer(type);
        // Also, need to cache it
        if (subDeser != null) {
            synchronized (this) {
                if (_subDeserializers == null) {
                    _subDeserializers = new HashMap<ClassKey,JsonDeserializer<Object>>();;
                }
                _subDeserializers.put(new ClassKey(bean.getClass()), subDeser);
            }            
        }
        return subDeser;
    }

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     * Method that will check if there are "mix-in" classes (with mix-in
     * annotations) for given class
     */
//  @Override
    public final Class<?> findMixInClassFor(Class<?> cls) {
        return (_mixInAnnotations == null) ? null : _mixInAnnotations.get(new ClassKey(cls));
    }

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        _addSerializer(type, ser);
    }
    
    private void _addSerializer(Class<?> cls, JsonSerializer<?> ser)
    {
        ClassKey key = new ClassKey(cls);
        // Interface or class type?
        if (cls.isInterface()) {
            if (_interfaceMappings == null) {
                _interfaceMappings = new HashMap<ClassKey,JsonSerializer<?>>();
            }

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    @Override
    public JsonSerializer<?> findSerializer(SerializationConfig config,
            JavaType type, BeanDescription beanDesc)
    {
        Class<?> cls = type.getRawClass();
        ClassKey key = new ClassKey(cls);
        JsonSerializer<?> ser = null;


        // First: direct match?
        if (cls.isInterface()) {
            if (_interfaceMappings != null) {
                ser = _interfaceMappings.get(key);
                if (ser != null) {
                    return ser;
                }
            }
        } else {
            if (_classMappings != null) {
                ser = _classMappings.get(key);
                if (ser != null) {
                    return ser;
                }
                // If not direct match, maybe super-class match?
                for (Class<?> curr = cls; (curr != null); curr = curr.getSuperclass()) {
                    key.reset(curr);
                    ser = _classMappings.get(key);
                    if (ser != null) {
                        return ser;
                    }
                }

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