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

You can also browse Jackson Annotations Source Code below:

⏎ com/fasterxml/jackson/databind/jsonFormatVisitors/JsonValueFormatVisitor.java

package com.fasterxml.jackson.databind.jsonFormatVisitors;

import java.util.Set;

public interface JsonValueFormatVisitor {
    /**
     * Method called to indicate configured format for value type being visited.
     */
    void format(JsonValueFormat format);

    /**
     * Method called to indicate enumerated (String) values type being visited
     * can take as values.
     */
    void enumTypes(Set<String> enums);

    /**
     * Default "empty" implementation, useful as the base to start on;
     * especially as it is guaranteed to implement all the method
     * of the interface, even if new methods are getting added.
     */
    public static class Base implements JsonValueFormatVisitor {
        @Override
        public void format(JsonValueFormat format) { }
        @Override
        public void enumTypes(Set<String> enums) { }
    }
}

⏎ com/fasterxml/jackson/databind/jsonFormatVisitors/JsonValueFormatVisitor.java

 

⇒ Jackson Dataformat Extensions

⇐ Jackson Data Binding Source Code

⇑ Downloading and Reviewing jackson-*.jar

⇑⇑ Jackson - Java JSON library