com.fasterxml.jackson.databind.ser.std
Class NullSerializer
java.lang.Object
com.fasterxml.jackson.databind.JsonSerializer<T>
com.fasterxml.jackson.databind.ser.std.StdSerializer<Object>
com.fasterxml.jackson.databind.ser.std.NullSerializer
- All Implemented Interfaces:
- JsonFormatVisitable, SchemaAware
public class NullSerializer
- extends StdSerializer<Object>
This is a simple dummy serializer that will just output literal
JSON null value whenever serialization is requested.
Used as the default "null serializer" (which is used for serializing
null object references unless overridden), as well as for some
more exotic types (java.lang.Void).
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
instance
public static final NullSerializer instance
serialize
public void serialize(Object value,
JsonGenerator jgen,
SerializerProvider provider)
throws IOException,
JsonGenerationException
- Description copied from class:
JsonSerializer
- Method that can be called to ask implementation to serialize
values of type this serializer handles.
- Specified by:
serialize
in class StdSerializer<Object>
- Parameters:
value
- Value to serialize; can not be null.jgen
- Generator used to output resulting Json contentprovider
- Provider that can be used to get serializers for
serializing Objects value contains, if any.
- Throws:
IOException
JsonGenerationException
getSchema
public JsonNode getSchema(SerializerProvider provider,
Type typeHint)
throws JsonMappingException
- Description copied from class:
StdSerializer
- Default implementation simply claims type is "string"; usually
overriden by custom serializers.
- Specified by:
getSchema
in interface SchemaAware
- Overrides:
getSchema
in class StdSerializer<Object>
- Parameters:
provider
- The serializer provider.typeHint
- A hint about the type.
- Returns:
- Json-schema for this serializer.
- Throws:
JsonMappingException
acceptJsonFormatVisitor
public void acceptJsonFormatVisitor(JsonFormatVisitorWrapper visitor,
JavaType typeHint)
- Description copied from class:
StdSerializer
- Default implementation specifies no format. This behavior is usually
overriden by custom serializers.
- Specified by:
acceptJsonFormatVisitor
in interface JsonFormatVisitable
- Overrides:
acceptJsonFormatVisitor
in class StdSerializer<Object>
typeHint
- Type of element (entity like property) being visited
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