Examples of org.codehaus.jackson.map.type.ClassKey

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

     *   but must be compatible (same or sub-class)
     */
    public <T> void addGenericMapping(Class<? extends T> type, JsonSerializer<T> ser)
    {
        // Interface to match?
        ClassKey key = new ClassKey(type);
        if (type.isInterface()) {
            if (_interfaceMappings == null) {
                _interfaceMappings = new HashMap<ClassKey,JsonSerializer<?>>();
            }
            _interfaceMappings.put(key, ser);

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     *   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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                                          Class<?> classWithMixIns)
    {
        if (_mixInAnnotations == null) {
            _mixInAnnotations = new HashMap<ClassKey,Class<?>>();
        }
        _mixInAnnotations.put(new ClassKey(destinationClass), classWithMixIns);
    }

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    @Override
    @SuppressWarnings("unchecked")
    public <T> JsonSerializer<T> createSerializer(Class<T> 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 (JsonSerializer<T>) ser;
            }
        }


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


        // And if still no match, how about interfaces?
        if (_interfaceMappings != null) {
            for (Class<?> curr = type; (curr != null); curr = curr.getSuperclass()) {
                for (Class<?> iface : curr.getInterfaces()) {
                    key.reset(iface);
                    ser = _interfaceMappings.get(key);
                    if (ser != null) {
                        return (JsonSerializer<T>) ser;
                    }
                }

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        }


        /* Ok: looks like we must weed out some core types here; ones that
         * make no sense to try to bind from JSON:
         */
        if (_untouchables.contains(new ClassKey(type))) {
            return false;
        }
        // but some are interface/abstract classes, so
        for (Class<?> cls : _unreadableClasses) {
            if (cls.isAssignableFrom(type)) {

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        }


        /* Ok: looks like we must weed out some core types here; ones that
         * make no sense to try to bind from JSON:
         */
        if (_untouchables.contains(new ClassKey(type))) {
            return false;
        }
        // but some are interface/abstract classes, so
        for (Class<?> cls : _unwritableClasses) {
            if (cls.isAssignableFrom(type)) {

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     *   but must be compatible (same or sub-class)
     */
    public <T> void addGenericMapping(Class<? extends T> type, JsonSerializer<T> ser)
    {
        // Interface to match?
        ClassKey key = new ClassKey(type);
        if (type.isInterface()) {
            if (_interfaceMappings == null) {
                _interfaceMappings = new HashMap<ClassKey,JsonSerializer<?>>();
            }
            _interfaceMappings.put(key, ser);

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     *   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.
         */

View Full Code Here

     */
    
    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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        _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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org.codehaus.jackson.map.module.SimpleKeyDeserializers

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