Examples of com.facebook.presto.hive.shaded.org.codehaus.jackson.map.type.ClassKey

Package com.facebook.presto.hive.shaded.org.codehaus.jackson.map.type

Examples of com.facebook.presto.hive.shaded.org.codehaus.jackson.map.type.ClassKey

com.facebook.presto.hive.shaded.org.codehaus.jackson.map.type.ClassKey
Key class, used as an efficient and accurate key for locating per-class values, such as {@link com.facebook.presto.hive.shaded.org.codehaus.jackson.map.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.

     *   used. May be more specific type than what serializer indicates,
     *   but must be compatible (same or sub-class)
     */
    public <T> void addSpecificMapping(Class<? extends T> forClass, JsonSerializer<T> ser)
    {
        ClassKey key = new ClassKey(forClass);


        /* First, let's ensure it's not an interface or abstract class:
         * as those can not be instantiated, such mappings would never
         * get used.
         */

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     */
    
    protected JsonSerializer<?> findCustomSerializer(Class<?> type, SerializationConfig config)
    {
        JsonSerializer<?> ser = null;
        ClassKey key = new ClassKey(type);


        // First: exact matches
        if (_directClassMappings != null) {
            ser = _directClassMappings.get(key);
            if (ser != null) {
                return ser;
            }
        }


        // No match? Perhaps we can use the enum serializer?
        if (type.isEnum()) {
            if (_enumSerializerOverride != null) {
                return _enumSerializerOverride;
            }
        }


        // Still no match? How about more generic ones?
        // Mappings for super-classes?
        if (_transitiveClassMappings != null) {
            for (Class<?> curr = type; (curr != null); curr = curr.getSuperclass()) {
                key.reset(curr);
                ser = _transitiveClassMappings.get(key);
                if (ser != null) {
                    return ser;
                }
            }
        }


        // And if still no match, how about interfaces?
        if (_interfaceMappings != null) {
            // as per [JACKSON-327], better check actual interface first too...
            key.reset(type);
            ser = _interfaceMappings.get(key);
            if (ser != null) {
                return ser;
            }
            for (Class<?> curr = type; (curr != null); curr = curr.getSuperclass()) {

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    {
        HashMap<ClassKey,Class<?>> mixins = null;
        if (sourceMixins != null && sourceMixins.size() > 0) {
            mixins = new HashMap<ClassKey,Class<?>>(sourceMixins.size());
            for (Map.Entry<Class<?>,Class<?>> en : sourceMixins.entrySet()) {
                mixins.put(new ClassKey(en.getKey()), en.getValue());
            }
        }
        _mixInAnnotationsShared = false;
        _mixInAnnotations = mixins;
    }

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            _mixInAnnotations = new HashMap<ClassKey,Class<?>>();
        } else if (_mixInAnnotationsShared) {
            _mixInAnnotationsShared = false;
            _mixInAnnotations = new HashMap<ClassKey,Class<?>>(_mixInAnnotations);
        }
        _mixInAnnotations.put(new ClassKey(target), mixinSource);
    }

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     * 
     * @since 1.2
     */
    @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
        DeserializerProvider deserProv = ctxt.getDeserializerProvider();
        if (deserProv != null) {
            JavaType type = ctxt.constructType(bean.getClass());
            /* 09-Dec-2010, tatu: Would be nice to know which property pointed to this
             *    bean... but, alas, no such information is retained, so:
             */
            subDeser = deserProv.findValueDeserializer(ctxt.getConfig(), type, _property);
            // 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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com.facebook.presto.hive.shaded.org.codehaus.jackson.map.ser.CustomSerializerFactory

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