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

Jackson Annotations Source Code files are provided in the source packge (jackson-annotations-2.14.0-sources.jar). You can download it at Jackson Maven Website.

You can also browse Jackson Annotations Source Code below:

⏎ com/fasterxml/jackson/annotation/PropertyAccessor.java

package com.fasterxml.jackson.annotation;

/**
 * Enumeration used to define kinds of elements (called "property accessors")
 * that annotations like {@link JsonAutoDetect} apply to.
 *<p>
 * In addition to method types (GETTER/IS_GETTER, SETTER, CREATOR) and the
 * field type (FIELD), 2 pseudo-types
 * are defined for convenience: <code>ALWAYS</code> and <code>NONE</code>. These
 * can be used to indicate, all or none of available method types (respectively),
 * for use by annotations that takes <code>JsonMethod</code> argument.
 */
public enum PropertyAccessor
{
    /**
     * Getters are methods used to get a POJO field value for serialization,
     * or, under certain conditions also for de-serialization. Latter
     * can be used for effectively setting Collection or Map values
     * in absence of setters, iff returned value is not a copy but
     * actual value of the logical property.
     *<p>
     * Since version 1.3, this does <b>NOT</b> include "is getters" (methods
     * that return boolean and named 'isXxx' for property 'xxx'); instead,
     * {@link #IS_GETTER} is used}.
     */
    GETTER,

    /**
     * Setters are methods used to set a POJO value for deserialization.
     */
    SETTER,

    /**
     * Creators are constructors and (static) factory methods used to
     * construct POJO instances for deserialization
     */
    CREATOR,

    /**
     * Field refers to fields of regular Java objects. Although
     * they are not really methods, addition of optional field-discovery
     * in version 1.1 meant that there was need to enable/disable
     * their auto-detection, and this is the place to add it in.
     */
    FIELD,

    /**
     * "Is getters" are getter-like methods that are named "isXxx"
     * (instead of "getXxx" for getters) and return boolean value
     * (either primitive, or {@link java.lang.Boolean}).
     *
     */
    IS_GETTER,

    /**
     * This pseudo-type indicates that none of accessors if affected.
     */
    NONE,

    /**
     * This pseudo-type indicates that all accessors are affected.
     */
    ALL
    ;

    private PropertyAccessor() { }

    public boolean creatorEnabled() {
        return (this == CREATOR) || (this == ALL);
    }

    public boolean getterEnabled() {
        return (this == GETTER) || (this == ALL);
    }

    public boolean isGetterEnabled() {
        return (this == IS_GETTER) || (this == ALL);
    }

    public boolean setterEnabled() {
        return (this == SETTER) || (this == ALL);
    }

    public boolean fieldEnabled() {
        return (this == FIELD) || (this == ALL);
    }
}

⏎ com/fasterxml/jackson/annotation/PropertyAccessor.java

Or download all of them as a single archive file:

File name: jackson-annotations-2.14.0-sources.jar
File size: 80402 bytes
Release date: 2022-11-05
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