src/main/java/com/fasterxml/jackson/databind/ser/std/ObjectArraySerializer.java - platform/external/jackson-databind - Git at Google

 package com.fasterxml.jackson.databind.ser.std;

 import java.io.IOException;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Type;

 import com.fasterxml.jackson.core.*;

 import com.fasterxml.jackson.databind.*;
 import com.fasterxml.jackson.databind.annotation.JacksonStdImpl;
 import com.fasterxml.jackson.databind.introspect.AnnotatedMember;
 import com.fasterxml.jackson.databind.jsonFormatVisitors.JsonArrayFormatVisitor;
 import com.fasterxml.jackson.databind.jsonFormatVisitors.JsonFormatVisitorWrapper;
 import com.fasterxml.jackson.databind.jsonschema.JsonSchema;
 import com.fasterxml.jackson.databind.jsonschema.SchemaAware;
 import com.fasterxml.jackson.databind.jsontype.TypeSerializer;
 import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.fasterxml.jackson.databind.ser.ContainerSerializer;
 import com.fasterxml.jackson.databind.ser.ContextualSerializer;
 import com.fasterxml.jackson.databind.ser.impl.PropertySerializerMap;
 import com.fasterxml.jackson.databind.type.ArrayType;
 import com.fasterxml.jackson.databind.type.TypeFactory;

 /**
  * Generic serializer for Object arrays (<code>Object[]</code>).
  */
 @JacksonStdImpl
 public class ObjectArraySerializer
     extends ArraySerializerBase<Object[]>
     implements ContextualSerializer
 {
     /**
      * Whether we are using static typing (using declared types, ignoring
      * runtime type) or not for elements.
      */
     protected final boolean _staticTyping;

     /**
      * Declared type of element entries
      */
     protected final JavaType _elementType;

     /**
      * Type serializer to use for values, if any.
      */
     protected final TypeSerializer _valueTypeSerializer;

     /**
      * Value serializer to use, if it can be statically determined.
      */
     protected JsonSerializer<Object> _elementSerializer;

     /**
      * If element type can not be statically determined, mapping from
      * runtime type to serializer is handled using this object
      */
     protected PropertySerializerMap _dynamicSerializers;

     /*
     /**********************************************************
     /* Life-cycle
     /**********************************************************
      */

     public ObjectArraySerializer(JavaType elemType, boolean staticTyping,
             TypeSerializer vts, JsonSerializer<Object> elementSerializer)
     {
         super(Object[].class, null);
         _elementType = elemType;
         _staticTyping = staticTyping;
         _valueTypeSerializer = vts;
         _dynamicSerializers = PropertySerializerMap.emptyMap();
         _elementSerializer = elementSerializer;
     }

     public ObjectArraySerializer(ObjectArraySerializer src, TypeSerializer vts)
     {
         super(src);
         _elementType = src._elementType;
         _valueTypeSerializer = vts;
         _staticTyping = src._staticTyping;
         _dynamicSerializers = src._dynamicSerializers;
         _elementSerializer = src._elementSerializer;
     }

     @SuppressWarnings("unchecked")
     public ObjectArraySerializer(ObjectArraySerializer src,
             BeanProperty property, TypeSerializer vts, JsonSerializer<?> elementSerializer)
     {
         super(src,  property);
         _elementType = src._elementType;
         _valueTypeSerializer = vts;
         _staticTyping = src._staticTyping;
         _dynamicSerializers = src._dynamicSerializers;
         _elementSerializer = (JsonSerializer<Object>) elementSerializer;
     }

     @Override
     public ContainerSerializer<?> _withValueTypeSerializer(TypeSerializer vts)
     {
         return new ObjectArraySerializer(_elementType, _staticTyping, vts, _elementSerializer);
     }

     public ObjectArraySerializer withResolved(BeanProperty prop,
             TypeSerializer vts, JsonSerializer<?> ser) {
         if (_property == prop && ser == _elementSerializer && _valueTypeSerializer == vts) {
             return this;
         }
         return new ObjectArraySerializer(this, prop, vts, ser);
     }

     /*
     /**********************************************************
     /* Post-processing
     /**********************************************************
      */

 //  @Override
     public JsonSerializer<?> createContextual(SerializerProvider provider,
             BeanProperty property)
         throws JsonMappingException
     {
         TypeSerializer vts = _valueTypeSerializer;
         if (vts != null) {
             vts = vts.forProperty(property);
         }
         /* 29-Sep-2012, tatu: Actually, we need to do much more contextual
          *    checking here since we finally know for sure the property,
          *    and it may have overrides
          */
         JsonSerializer<?> ser = null;
         // First: if we have a property, may have property-annotation overrides
         if (property != null) {
             AnnotatedMember m = property.getMember();
             if (m != null) {
                 Object serDef = provider.getAnnotationIntrospector().findContentSerializer(m);
                 if (serDef != null) {
                     ser = provider.serializerInstance(m, serDef);
                 }
             }
         }
         if (ser == null) {
             ser = _elementSerializer;
         }
         if (ser == null) {
             // 30-Sep-2012, tatu: One more thing -- if explicit content type is annotated,
             //   we can consider it a static case as well.
             if (_elementType != null) {
                 if (_staticTyping || hasContentTypeAnnotation(provider, property)) {
                     ser = provider.findValueSerializer(_elementType, property);
                 }
             }
         } else if (ser instanceof ContextualSerializer) {
             ser = ((ContextualSerializer) ser).createContextual(provider, property);
         }
         return withResolved(property, vts, ser);
     }

     /*
     /**********************************************************
     /* Accessors
     /**********************************************************
      */

     @Override
     public JavaType getContentType() {
         return _elementType;
     }

     @Override
     public JsonSerializer<?> getContentSerializer() {
         return _elementSerializer;
     }

     @Override
     public boolean isEmpty(Object[] value) {
         return (value == null) || (value.length == 0);
     }

     @Override
     public boolean hasSingleElement(Object[] value) {
         return (value.length == 1);
     }

     /*
     /**********************************************************
     /* Actual serialization
     /**********************************************************
      */

     @Override
     public void serializeContents(Object[] value, JsonGenerator jgen, SerializerProvider provider)
         throws IOException, JsonGenerationException
     {
         final int len = value.length;
         if (len == 0) {
             return;
         }
         if (_elementSerializer != null) {
             serializeContentsUsing(value, jgen, provider, _elementSerializer);
             return;
         }
         if (_valueTypeSerializer != null) {
             serializeTypedContents(value, jgen, provider);
             return;
         }
         int i = 0;
         Object elem = null;
         try {
             PropertySerializerMap serializers = _dynamicSerializers;
             for (; i < len; ++i) {
                 elem = value[i];
                 if (elem == null) {
                     provider.defaultSerializeNull(jgen);
                     continue;
                 }
                 Class<?> cc = elem.getClass();
                 JsonSerializer<Object> serializer = serializers.serializerFor(cc);
                 if (serializer == null) {
                     // To fix [JACKSON-508]
                     if (_elementType.hasGenericTypes()) {
                         serializer = _findAndAddDynamic(serializers,
                                 provider.constructSpecializedType(_elementType, cc), provider);
                     } else {
                         serializer = _findAndAddDynamic(serializers, cc, provider);
                     }
                 }
                 serializer.serialize(elem, jgen, provider);
             }
         } catch (IOException ioe) {
             throw ioe;
         } catch (Exception e) {
             // [JACKSON-55] Need to add reference information
             /* 05-Mar-2009, tatu: But one nasty edge is when we get
              *   StackOverflow: usually due to infinite loop. But that gets
              *   hidden within an InvocationTargetException...
              */
             Throwable t = e;
             while (t instanceof InvocationTargetException && t.getCause() != null) {
                 t = t.getCause();
             }
             if (t instanceof Error) {
                 throw (Error) t;
             }
             throw JsonMappingException.wrapWithPath(t, elem, i);
         }
     }

     public void serializeContentsUsing(Object[] value, JsonGenerator jgen, SerializerProvider provider,
             JsonSerializer<Object> ser)
         throws IOException, JsonGenerationException
     {
         final int len = value.length;
         final TypeSerializer typeSer = _valueTypeSerializer;

         int i = 0;
         Object elem = null;
         try {
             for (; i < len; ++i) {
                 elem = value[i];
                 if (elem == null) {
                     provider.defaultSerializeNull(jgen);
                     continue;
                 }
                 if (typeSer == null) {
                     ser.serialize(elem, jgen, provider);
                 } else {
                     ser.serializeWithType(elem, jgen, provider, typeSer);
                 }
             }
         } catch (IOException ioe) {
             throw ioe;
         } catch (Exception e) {
             Throwable t = e;
             while (t instanceof InvocationTargetException && t.getCause() != null) {
                 t = t.getCause();
             }
             if (t instanceof Error) {
                 throw (Error) t;
             }
             throw JsonMappingException.wrapWithPath(t, elem, i);
         }
     }

     public void serializeTypedContents(Object[] value, JsonGenerator jgen, SerializerProvider provider)
         throws IOException, JsonGenerationException
     {
         final int len = value.length;
         final TypeSerializer typeSer = _valueTypeSerializer;
         int i = 0;
         Object elem = null;
         try {
             PropertySerializerMap serializers = _dynamicSerializers;
             for (; i < len; ++i) {
                 elem = value[i];
                 if (elem == null) {
                     provider.defaultSerializeNull(jgen);
                     continue;
                 }
                 Class<?> cc = elem.getClass();
                 JsonSerializer<Object> serializer = serializers.serializerFor(cc);
                 if (serializer == null) {
                     serializer = _findAndAddDynamic(serializers, cc, provider);
                 }
                 serializer.serializeWithType(elem, jgen, provider, typeSer);
             }
         } catch (IOException ioe) {
             throw ioe;
         } catch (Exception e) {
             Throwable t = e;
             while (t instanceof InvocationTargetException && t.getCause() != null) {
                 t = t.getCause();
             }
             if (t instanceof Error) {
                 throw (Error) t;
             }
             throw JsonMappingException.wrapWithPath(t, elem, i);
         }
     }

     @Override
     public JsonNode getSchema(SerializerProvider provider, Type typeHint)
         throws JsonMappingException
     {
         ObjectNode o = createSchemaNode("array", true);
         if (typeHint != null) {
             JavaType javaType = provider.constructType(typeHint);
             if (javaType.isArrayType()) {
                 Class<?> componentType = ((ArrayType) javaType).getContentType().getRawClass();
                 // 15-Oct-2010, tatu: We can't serialize plain Object.class; but what should it produce here? Untyped?
                 if (componentType == Object.class) {
                     o.put("items", JsonSchema.getDefaultSchemaNode());
                 } else {
                     JsonSerializer<Object> ser = provider.findValueSerializer(componentType, _property);
                     JsonNode schemaNode = (ser instanceof SchemaAware) ?
                             ((SchemaAware) ser).getSchema(provider, null) :
                             JsonSchema.getDefaultSchemaNode();
                     o.put("items", schemaNode);
                 }
             }
         }
         return o;
     }

     @Override
     public void acceptJsonFormatVisitor(JsonFormatVisitorWrapper visitor, JavaType typeHint)
         throws JsonMappingException
     {
         JsonArrayFormatVisitor arrayVisitor = visitor.expectArrayFormat(typeHint);
         if (arrayVisitor != null) {
             TypeFactory tf = visitor.getProvider().getTypeFactory();
             JavaType contentType = tf.moreSpecificType(_elementType, typeHint.getContentType());
             if (contentType == null) {
                 throw new JsonMappingException("Could not resolve type");
             }
             JsonSerializer<?> valueSer = _elementSerializer;
             if (valueSer == null) {
                 valueSer = visitor.getProvider().findValueSerializer(contentType, _property);
             }
             arrayVisitor.itemsFormat(valueSer, contentType);
         }
     }

     protected final JsonSerializer<Object> _findAndAddDynamic(PropertySerializerMap map,
             Class<?> type, SerializerProvider provider) throws JsonMappingException
     {
         PropertySerializerMap.SerializerAndMapResult result = map.findAndAddSerializer(type, provider, _property);
         // did we get a new map of serializers? If so, start using it
         if (map != result.map) {
             _dynamicSerializers = result.map;
         }
         return result.serializer;
     }

     protected final JsonSerializer<Object> _findAndAddDynamic(PropertySerializerMap map,
             JavaType type, SerializerProvider provider) throws JsonMappingException
     {
         PropertySerializerMap.SerializerAndMapResult result = map.findAndAddSerializer(type, provider, _property);
         // did we get a new map of serializers? If so, start using it
         if (map != result.map) {
             _dynamicSerializers = result.map;
         }
         return result.serializer;
     }

 }
	package com.fasterxml.jackson.databind.ser.std;

	import java.io.IOException;
	import java.lang.reflect.InvocationTargetException;
	import java.lang.reflect.Type;

	import com.fasterxml.jackson.core.*;

	import com.fasterxml.jackson.databind.*;
	import com.fasterxml.jackson.databind.annotation.JacksonStdImpl;
	import com.fasterxml.jackson.databind.introspect.AnnotatedMember;
	import com.fasterxml.jackson.databind.jsonFormatVisitors.JsonArrayFormatVisitor;
	import com.fasterxml.jackson.databind.jsonFormatVisitors.JsonFormatVisitorWrapper;
	import com.fasterxml.jackson.databind.jsonschema.JsonSchema;
	import com.fasterxml.jackson.databind.jsonschema.SchemaAware;
	import com.fasterxml.jackson.databind.jsontype.TypeSerializer;
	import com.fasterxml.jackson.databind.node.ObjectNode;
	import com.fasterxml.jackson.databind.ser.ContainerSerializer;
	import com.fasterxml.jackson.databind.ser.ContextualSerializer;
	import com.fasterxml.jackson.databind.ser.impl.PropertySerializerMap;
	import com.fasterxml.jackson.databind.type.ArrayType;
	import com.fasterxml.jackson.databind.type.TypeFactory;

	/**
	* Generic serializer for Object arrays (<code>Object[]</code>).
	*/
	@JacksonStdImpl
	public class ObjectArraySerializer
	extends ArraySerializerBase<Object[]>
	implements ContextualSerializer
	{
	/**
	* Whether we are using static typing (using declared types, ignoring
	* runtime type) or not for elements.
	*/
	protected final boolean _staticTyping;

	/**
	* Declared type of element entries
	*/
	protected final JavaType _elementType;

	/**
	* Type serializer to use for values, if any.
	*/
	protected final TypeSerializer _valueTypeSerializer;

	/**
	* Value serializer to use, if it can be statically determined.
	*/
	protected JsonSerializer<Object> _elementSerializer;

	/**
	* If element type can not be statically determined, mapping from
	* runtime type to serializer is handled using this object
	*/
	protected PropertySerializerMap _dynamicSerializers;

	/*
	/**********************************************************
	/* Life-cycle
	/**********************************************************
	*/

	public ObjectArraySerializer(JavaType elemType, boolean staticTyping,
	TypeSerializer vts, JsonSerializer<Object> elementSerializer)
	{
	super(Object[].class, null);
	_elementType = elemType;
	_staticTyping = staticTyping;
	_valueTypeSerializer = vts;
	_dynamicSerializers = PropertySerializerMap.emptyMap();
	_elementSerializer = elementSerializer;
	}

	public ObjectArraySerializer(ObjectArraySerializer src, TypeSerializer vts)
	{
	super(src);
	_elementType = src._elementType;
	_valueTypeSerializer = vts;
	_staticTyping = src._staticTyping;
	_dynamicSerializers = src._dynamicSerializers;
	_elementSerializer = src._elementSerializer;
	}

	@SuppressWarnings("unchecked")
	public ObjectArraySerializer(ObjectArraySerializer src,
	BeanProperty property, TypeSerializer vts, JsonSerializer<?> elementSerializer)
	{
	super(src, property);
	_elementType = src._elementType;
	_valueTypeSerializer = vts;
	_staticTyping = src._staticTyping;
	_dynamicSerializers = src._dynamicSerializers;
	_elementSerializer = (JsonSerializer<Object>) elementSerializer;
	}

	@Override
	public ContainerSerializer<?> _withValueTypeSerializer(TypeSerializer vts)
	{
	return new ObjectArraySerializer(_elementType, _staticTyping, vts, _elementSerializer);
	}

	public ObjectArraySerializer withResolved(BeanProperty prop,
	TypeSerializer vts, JsonSerializer<?> ser) {
	if (_property == prop && ser == _elementSerializer && _valueTypeSerializer == vts) {
	return this;
	}
	return new ObjectArraySerializer(this, prop, vts, ser);
	}

	/*
	/**********************************************************
	/* Post-processing
	/**********************************************************
	*/

	// @Override
	public JsonSerializer<?> createContextual(SerializerProvider provider,
	BeanProperty property)
	throws JsonMappingException
	{
	TypeSerializer vts = _valueTypeSerializer;
	if (vts != null) {
	vts = vts.forProperty(property);
	}
	/* 29-Sep-2012, tatu: Actually, we need to do much more contextual
	* checking here since we finally know for sure the property,
	* and it may have overrides
	*/
	JsonSerializer<?> ser = null;
	// First: if we have a property, may have property-annotation overrides
	if (property != null) {
	AnnotatedMember m = property.getMember();
	if (m != null) {
	Object serDef = provider.getAnnotationIntrospector().findContentSerializer(m);
	if (serDef != null) {
	ser = provider.serializerInstance(m, serDef);
	}
	}
	}
	if (ser == null) {
	ser = _elementSerializer;
	}
	if (ser == null) {
	// 30-Sep-2012, tatu: One more thing -- if explicit content type is annotated,
	// we can consider it a static case as well.
	if (_elementType != null) {
	if (_staticTyping \|\| hasContentTypeAnnotation(provider, property)) {
	ser = provider.findValueSerializer(_elementType, property);
	}
	}
	} else if (ser instanceof ContextualSerializer) {
	ser = ((ContextualSerializer) ser).createContextual(provider, property);
	}
	return withResolved(property, vts, ser);
	}

	/*
	/**********************************************************
	/* Accessors
	/**********************************************************
	*/

	@Override
	public JavaType getContentType() {
	return _elementType;
	}

	@Override
	public JsonSerializer<?> getContentSerializer() {
	return _elementSerializer;
	}

	@Override
	public boolean isEmpty(Object[] value) {
	return (value == null) \|\| (value.length == 0);
	}

	@Override
	public boolean hasSingleElement(Object[] value) {
	return (value.length == 1);
	}

	/*
	/**********************************************************
	/* Actual serialization
	/**********************************************************
	*/

	@Override
	public void serializeContents(Object[] value, JsonGenerator jgen, SerializerProvider provider)
	throws IOException, JsonGenerationException
	{
	final int len = value.length;
	if (len == 0) {
	return;
	}
	if (_elementSerializer != null) {
	serializeContentsUsing(value, jgen, provider, _elementSerializer);
	return;
	}
	if (_valueTypeSerializer != null) {
	serializeTypedContents(value, jgen, provider);
	return;
	}
	int i = 0;
	Object elem = null;
	try {
	PropertySerializerMap serializers = _dynamicSerializers;
	for (; i < len; ++i) {
	elem = value[i];
	if (elem == null) {
	provider.defaultSerializeNull(jgen);
	continue;
	}
	Class<?> cc = elem.getClass();
	JsonSerializer<Object> serializer = serializers.serializerFor(cc);
	if (serializer == null) {
	// To fix [JACKSON-508]
	if (_elementType.hasGenericTypes()) {
	serializer = _findAndAddDynamic(serializers,
	provider.constructSpecializedType(_elementType, cc), provider);
	} else {
	serializer = _findAndAddDynamic(serializers, cc, provider);
	}
	}
	serializer.serialize(elem, jgen, provider);
	}
	} catch (IOException ioe) {
	throw ioe;
	} catch (Exception e) {
	// [JACKSON-55] Need to add reference information
	/* 05-Mar-2009, tatu: But one nasty edge is when we get
	* StackOverflow: usually due to infinite loop. But that gets
	* hidden within an InvocationTargetException...
	*/
	Throwable t = e;
	while (t instanceof InvocationTargetException && t.getCause() != null) {
	t = t.getCause();
	}
	if (t instanceof Error) {
	throw (Error) t;
	}
	throw JsonMappingException.wrapWithPath(t, elem, i);
	}
	}

	public void serializeContentsUsing(Object[] value, JsonGenerator jgen, SerializerProvider provider,
	JsonSerializer<Object> ser)
	throws IOException, JsonGenerationException
	{
	final int len = value.length;
	final TypeSerializer typeSer = _valueTypeSerializer;

	int i = 0;
	Object elem = null;
	try {
	for (; i < len; ++i) {
	elem = value[i];
	if (elem == null) {
	provider.defaultSerializeNull(jgen);
	continue;
	}
	if (typeSer == null) {
	ser.serialize(elem, jgen, provider);
	} else {
	ser.serializeWithType(elem, jgen, provider, typeSer);
	}
	}
	} catch (IOException ioe) {
	throw ioe;
	} catch (Exception e) {
	Throwable t = e;
	while (t instanceof InvocationTargetException && t.getCause() != null) {
	t = t.getCause();
	}
	if (t instanceof Error) {
	throw (Error) t;
	}
	throw JsonMappingException.wrapWithPath(t, elem, i);
	}
	}

	public void serializeTypedContents(Object[] value, JsonGenerator jgen, SerializerProvider provider)
	throws IOException, JsonGenerationException
	{
	final int len = value.length;
	final TypeSerializer typeSer = _valueTypeSerializer;
	int i = 0;
	Object elem = null;
	try {
	PropertySerializerMap serializers = _dynamicSerializers;
	for (; i < len; ++i) {
	elem = value[i];
	if (elem == null) {
	provider.defaultSerializeNull(jgen);
	continue;
	}
	Class<?> cc = elem.getClass();
	JsonSerializer<Object> serializer = serializers.serializerFor(cc);
	if (serializer == null) {
	serializer = _findAndAddDynamic(serializers, cc, provider);
	}
	serializer.serializeWithType(elem, jgen, provider, typeSer);
	}
	} catch (IOException ioe) {
	throw ioe;
	} catch (Exception e) {
	Throwable t = e;
	while (t instanceof InvocationTargetException && t.getCause() != null) {
	t = t.getCause();
	}
	if (t instanceof Error) {
	throw (Error) t;
	}
	throw JsonMappingException.wrapWithPath(t, elem, i);
	}
	}

	@Override
	public JsonNode getSchema(SerializerProvider provider, Type typeHint)
	throws JsonMappingException
	{
	ObjectNode o = createSchemaNode("array", true);
	if (typeHint != null) {
	JavaType javaType = provider.constructType(typeHint);
	if (javaType.isArrayType()) {
	Class<?> componentType = ((ArrayType) javaType).getContentType().getRawClass();
	// 15-Oct-2010, tatu: We can't serialize plain Object.class; but what should it produce here? Untyped?
	if (componentType == Object.class) {
	o.put("items", JsonSchema.getDefaultSchemaNode());
	} else {
	JsonSerializer<Object> ser = provider.findValueSerializer(componentType, _property);
	JsonNode schemaNode = (ser instanceof SchemaAware) ?
	((SchemaAware) ser).getSchema(provider, null) :
	JsonSchema.getDefaultSchemaNode();
	o.put("items", schemaNode);
	}
	}
	}
	return o;
	}

	@Override
	public void acceptJsonFormatVisitor(JsonFormatVisitorWrapper visitor, JavaType typeHint)
	throws JsonMappingException
	{
	JsonArrayFormatVisitor arrayVisitor = visitor.expectArrayFormat(typeHint);
	if (arrayVisitor != null) {
	TypeFactory tf = visitor.getProvider().getTypeFactory();
	JavaType contentType = tf.moreSpecificType(_elementType, typeHint.getContentType());
	if (contentType == null) {
	throw new JsonMappingException("Could not resolve type");
	}
	JsonSerializer<?> valueSer = _elementSerializer;
	if (valueSer == null) {
	valueSer = visitor.getProvider().findValueSerializer(contentType, _property);
	}
	arrayVisitor.itemsFormat(valueSer, contentType);
	}
	}

	protected final JsonSerializer<Object> _findAndAddDynamic(PropertySerializerMap map,
	Class<?> type, SerializerProvider provider) throws JsonMappingException
	{
	PropertySerializerMap.SerializerAndMapResult result = map.findAndAddSerializer(type, provider, _property);
	// did we get a new map of serializers? If so, start using it
	if (map != result.map) {
	_dynamicSerializers = result.map;
	}
	return result.serializer;
	}

	protected final JsonSerializer<Object> _findAndAddDynamic(PropertySerializerMap map,
	JavaType type, SerializerProvider provider) throws JsonMappingException
	{
	PropertySerializerMap.SerializerAndMapResult result = map.findAndAddSerializer(type, provider, _property);
	// did we get a new map of serializers? If so, start using it
	if (map != result.map) {
	_dynamicSerializers = result.map;
	}
	return result.serializer;
	}

	}