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

    com/fasterxml/jackson/databind/ser/impl/ObjectIdWriter.java

    package com.fasterxml.jackson.databind.ser.impl;
    
    import com.fasterxml.jackson.annotation.ObjectIdGenerator;
    import com.fasterxml.jackson.core.SerializableString;
    import com.fasterxml.jackson.core.io.SerializedString;
    import com.fasterxml.jackson.databind.*;
    
    /**
     * Object that knows how to serialize Object Ids.
     */
    public final class ObjectIdWriter
    {
        public final JavaType idType;
    
        /**
         * Name of id property to write, if not null: if null, should
         * only write references, but id property is handled by some
         * other entity.
         */
        public final SerializableString propertyName;
    
        /**
         * Blueprint generator instance: actual instance will be
         * fetched from {@link SerializerProvider} using this as
         * the key.
         */
        public final ObjectIdGenerator<?> generator;
        
        /**
         * Serializer used for serializing id values.
         */
        public final JsonSerializer<Object> serializer;
    
        /**
         * Marker that indicates what the first reference is to be
         * serialized as full POJO, or as Object Id (other references
         * will always be serialized as Object Id)
         * 
         * @since 2.1
         */
        public final boolean alwaysAsId;
        
        /*
        /**********************************************************
        /* Life-cycle
        /**********************************************************
         */
    
        @SuppressWarnings("unchecked")
        protected ObjectIdWriter(JavaType t, SerializableString propName,
                ObjectIdGenerator<?> gen, JsonSerializer<?> ser, boolean alwaysAsId)
        {
            idType = t;
            propertyName = propName;
            generator = gen;
            serializer = (JsonSerializer<Object>) ser;
            this.alwaysAsId = alwaysAsId;
        }
    
        /**
         * Factory method called by {@link com.fasterxml.jackson.databind.ser.std.BeanSerializerBase}
         * with the initial information based on standard settings for the type
         * for which serializer is being built.
         * 
         * @since 2.3
         */
        public static ObjectIdWriter construct(JavaType idType, PropertyName propName,
                ObjectIdGenerator<?> generator, boolean alwaysAsId)
        {
            String simpleName = (propName == null) ? null : propName.getSimpleName();
            SerializableString serName = (simpleName == null) ? null : new SerializedString(simpleName);
            return new ObjectIdWriter(idType, serName, generator, null, alwaysAsId);
        }
    
        public ObjectIdWriter withSerializer(JsonSerializer<?> ser) {
            return new ObjectIdWriter(idType, propertyName, generator, ser, alwaysAsId);
        }
    
        /**
         * @since 2.1
         */
        public ObjectIdWriter withAlwaysAsId(boolean newState) {
            if (newState == alwaysAsId) {
                return this;
            }
            return new ObjectIdWriter(idType, propertyName, generator, serializer, newState);
        }
    }
    

    com/fasterxml/jackson/databind/ser/impl/ObjectIdWriter.java

     

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    2022-03-29, 32116👍, 0💬