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:

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    package com.fasterxml.jackson.databind.ser.std;
    import java.io.IOException;
    import java.net.InetAddress;
    import com.fasterxml.jackson.annotation.JsonFormat;
    import com.fasterxml.jackson.core.*;
    import com.fasterxml.jackson.core.type.WritableTypeId;
    import com.fasterxml.jackson.databind.BeanProperty;
    import com.fasterxml.jackson.databind.JsonMappingException;
    import com.fasterxml.jackson.databind.JsonSerializer;
    import com.fasterxml.jackson.databind.SerializerProvider;
    import com.fasterxml.jackson.databind.jsontype.TypeSerializer;
    import com.fasterxml.jackson.databind.ser.ContextualSerializer;
     * Simple serializer for {@link java.net.InetAddress}. Main complexity is
     * with registration, since same serializer is to be used for sub-classes.
     * Since 2.9 allows use of {@link JsonFormat} configuration (annotation,
     * per-type defaulting) so that if <code>JsonFormat.Shape.NUMBER</code>
     * (or <code>ARRAY</code>) is used, will serialize as "host address"
     * (dotted numbers) instead of simple conversion.
    public class InetAddressSerializer
        extends StdScalarSerializer<InetAddress>
        implements ContextualSerializer
         * @since 2.9
        protected final boolean _asNumeric;
        public InetAddressSerializer() {
         * @since 2.9
        public InetAddressSerializer(boolean asNumeric) {
            _asNumeric = asNumeric;
        public JsonSerializer<?> createContextual(SerializerProvider serializers,
                BeanProperty property) throws JsonMappingException
            JsonFormat.Value format = findFormatOverrides(serializers,
                    property, handledType());
            boolean asNumeric = false;
            if (format != null) {
                JsonFormat.Shape shape = format.getShape();
                if (shape.isNumeric() || shape == JsonFormat.Shape.ARRAY) {
                    asNumeric = true;
            if (asNumeric != _asNumeric) {
                return new InetAddressSerializer(asNumeric);
            return this;
        public void serialize(InetAddress value, JsonGenerator g, SerializerProvider provider) throws IOException
            String str;
            if (_asNumeric) { // since 2.9
                str = value.getHostAddress();
            } else {
                // Ok: get textual description; choose "more specific" part
                str = value.toString().trim();
                int ix = str.indexOf('/');
                if (ix >= 0) {
                    if (ix == 0) { // missing host name; use address
                        str = str.substring(1);
                    } else { // otherwise use name
                        str = str.substring(0, ix);
        public void serializeWithType(InetAddress value, JsonGenerator g,
                SerializerProvider provider, TypeSerializer typeSer) throws IOException
            // Better ensure we don't use specific sub-classes...
            WritableTypeId typeIdDef = typeSer.writeTypePrefix(g,
                    typeSer.typeId(value, InetAddress.class, JsonToken.VALUE_STRING));
            serialize(value, g, provider);
            typeSer.writeTypeSuffix(g, typeIdDef);



    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


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