Jackson Data Binding Source Code

Jackson is "the Java JSON library" or "the best JSON parser for Java". Or simply as "JSON for Java".

  • Jackson Data Binding module allows you to converts JSON to and from POJO (Plain Old Java Object) using property accessor or using annotations.
  • Jackson Databind Source Code files are provided in the source packge (jackson-databind-2.14.0-sources.jar). You can download it at Jackson Maven Website.

    You can also browse Jackson Databind Source Code below:

    ✍: FYIcenter.com

    com/fasterxml/jackson/databind/ser/std/ToEmptyObjectSerializer.java

    package com.fasterxml.jackson.databind.ser.std;
    
    import java.io.IOException;
    import java.lang.reflect.Type;
    
    import com.fasterxml.jackson.core.JsonGenerator;
    import com.fasterxml.jackson.core.JsonToken;
    import com.fasterxml.jackson.core.type.WritableTypeId;
    
    import com.fasterxml.jackson.databind.JavaType;
    import com.fasterxml.jackson.databind.JsonMappingException;
    import com.fasterxml.jackson.databind.JsonNode;
    import com.fasterxml.jackson.databind.SerializerProvider;
    import com.fasterxml.jackson.databind.annotation.JacksonStdImpl;
    import com.fasterxml.jackson.databind.jsonFormatVisitors.JsonFormatVisitorWrapper;
    import com.fasterxml.jackson.databind.jsontype.TypeSerializer;
    
    /**
     * Simple "bogus" serializer that will just serialize an empty
     * Object for any given value.
     * Quite similar to {@code UnknownSerializer} with the exception that
     * serialization never fails.
     *
     * @since 2.13
     */
    @JacksonStdImpl
    @SuppressWarnings("serial")
    public class ToEmptyObjectSerializer
        extends StdSerializer<Object>
    {
        protected ToEmptyObjectSerializer(Class<?> raw) {
            super(raw, false);
        }
    
        public ToEmptyObjectSerializer(JavaType type) {
            super(type);
        }
    
        @Override
        public void serialize(Object value, JsonGenerator gen, SerializerProvider ctxt) throws IOException
        {
            gen.writeStartObject(value, 0);
            gen.writeEndObject();
        }
    
        @Override
        public void serializeWithType(Object value, JsonGenerator gen,
                SerializerProvider ctxt, TypeSerializer typeSer) throws IOException
        {
            WritableTypeId typeIdDef = typeSer.writeTypePrefix(gen,
                    typeSer.typeId(value, JsonToken.START_OBJECT));
            typeSer.writeTypeSuffix(gen, typeIdDef);
        }
    
        @Override
        public boolean isEmpty(SerializerProvider provider, Object value) {
            return true;
        }
    
        @Override
        public JsonNode getSchema(SerializerProvider provider, Type typeHint)
                throws JsonMappingException {
            return null;
        }
    
        @Override
        public void acceptJsonFormatVisitor(JsonFormatVisitorWrapper visitor,
                JavaType typeHint)
            throws JsonMappingException
        {
            /*JsonObjectFormatVisitor v =*/ visitor.expectObjectFormat(typeHint);
        }
    }
    

    com/fasterxml/jackson/databind/ser/std/ToEmptyObjectSerializer.java

     

    Or download all of them as a single archive file:

    File name: jackson-databind-2.14.0-sources.jar
    File size: 1187952 bytes
    Release date: 2022-11-05
    Download 
    

     

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