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-2.12.4-sources.jar). You can download it at Jackson Maven Website.

    You can also browse Jackson Databind Source Code below:

    ✍: FYIcenter.com


    package com.fasterxml.jackson.databind;
    import java.util.*;
    import com.fasterxml.jackson.databind.util.ClassUtil;
     * Abstract class that defines API for objects that provide value to
     * "inject" during deserialization. An instance of this object
    public abstract class InjectableValues
         * Method called to find value identified by id <code>valueId</code> to
         * inject as value of specified property during deserialization, passing
         * POJO instance in which value will be injected if it is available
         * (will be available when injected via field or setter; not available
         * when injected via constructor or factory method argument).
         * @param valueId Object that identifies value to inject; may be a simple
         *   name or more complex identifier object, whatever provider needs
         * @param ctxt Deserialization context
         * @param forProperty Bean property in which value is to be injected
         * @param beanInstance Bean instance that contains property to inject,
         *    if available; null if bean has not yet been constructed.
        public abstract Object findInjectableValue(Object valueId, DeserializationContext ctxt,
                BeanProperty forProperty, Object beanInstance) throws JsonMappingException;
        /* Standard implementation
         * Simple standard implementation which uses a simple Map to
         * store values to inject, identified by simple String keys.
        public static class Std
            extends InjectableValues
            implements java.io.Serializable
            private static final long serialVersionUID = 1L;
            protected final Map<String,Object> _values;
            public Std() {
                this(new HashMap<String,Object>());
            public Std(Map<String,Object> values) {
                _values = values;
            public Std addValue(String key, Object value) {
                _values.put(key, value);
                return this;
            public Std addValue(Class<?> classKey, Object value) {
                _values.put(classKey.getName(), value);
                return this;
            public Object findInjectableValue(Object valueId, DeserializationContext ctxt,
                    BeanProperty forProperty, Object beanInstance) throws JsonMappingException
                if (!(valueId instanceof String)) {
                            "Unrecognized inject value id type (%s), expecting String",
                String key = (String) valueId;
                Object ob = _values.get(key);
                if (ob == null && !_values.containsKey(key)) {
                    throw new IllegalArgumentException("No injectable id with value '"+key+"' found (for property '"+forProperty.getName()+"')");
                return ob;



    ⇒ Jackson Annotations Source Code

    ⇐ Download and Install Jackson Binary Package

    ⇑ Downloading and Reviewing jackson-*.jar

    ⇑⇑ Jackson - Java JSON library

    2022-03-29, 31688👍, 0💬