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/jsontype/impl/LaissezFaireSubTypeValidator.java

    package com.fasterxml.jackson.databind.jsontype.impl;
    
    import com.fasterxml.jackson.databind.JavaType;
    import com.fasterxml.jackson.databind.cfg.MapperConfig;
    import com.fasterxml.jackson.databind.jsontype.PolymorphicTypeValidator;
    
    /**
     * Default {@link PolymorphicTypeValidator} used unless explicit one is constructed
     * (and, in 2.11, {@link com.fasterxml.jackson.databind.MapperFeature#BLOCK_UNSAFE_POLYMORPHIC_BASE_TYPES}
     * not enabled).
     * Does not do any validation, allows all subtypes. Only used for backwards-compatibility
     * reasons: users should usually NOT use such a permissive implementation but use
     * allow-list/criteria - based implementation.
     *
     * @since 2.10
     */
    public final class LaissezFaireSubTypeValidator
        extends PolymorphicTypeValidator.Base
    {
        private static final long serialVersionUID = 1L;
    
        public final static LaissezFaireSubTypeValidator instance = new LaissezFaireSubTypeValidator(); 
    
        @Override
        public Validity validateBaseType(MapperConfig<?> ctxt, JavaType baseType) {
            return Validity.INDETERMINATE;
        }
    
        @Override
        public Validity validateSubClassName(MapperConfig<?> ctxt,
                JavaType baseType, String subClassName) {
            return Validity.ALLOWED;
        }
    
        @Override
        public Validity validateSubType(MapperConfig<?> ctxt, JavaType baseType,
                JavaType subType) {
            return Validity.ALLOWED;
        }
    }
    

    com/fasterxml/jackson/databind/jsontype/impl/LaissezFaireSubTypeValidator.java

     

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    ⇑⇑ Jackson - Java JSON library

    2022-03-29, 31939👍, 0💬