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/deser/impl/PropertyBasedObjectIdGenerator.java

package com.fasterxml.jackson.databind.deser.impl;

import com.fasterxml.jackson.annotation.ObjectIdGenerator;
import com.fasterxml.jackson.annotation.ObjectIdGenerators;

// Simple placeholder
public class PropertyBasedObjectIdGenerator
	extends ObjectIdGenerators.PropertyGenerator
{
    private static final long serialVersionUID = 1L;

    public PropertyBasedObjectIdGenerator(Class<?> scope) {
        super(scope);
    }
    
    @Override
    public Object generateId(Object forPojo) {
    	throw new UnsupportedOperationException();
    }

    @Override
    public ObjectIdGenerator<Object> forScope(Class<?> scope) {
        return (scope == _scope) ? this : new PropertyBasedObjectIdGenerator(scope);
    }

    @Override
    public ObjectIdGenerator<Object> newForSerialization(Object context) {
        return this;
    }

    @Override
    public com.fasterxml.jackson.annotation.ObjectIdGenerator.IdKey key(Object key) {
        if (key == null) {
            return null;
        }
        // should we use general type for all; or type of property itself?
        return new IdKey(getClass(), _scope, key);
    }

}

⏎ com/fasterxml/jackson/databind/deser/impl/PropertyBasedObjectIdGenerator.java

 

⇒ Jackson Dataformat Extensions

⇐ Jackson Data Binding Source Code

⇑ Downloading and Reviewing jackson-*.jar

⇑⇑ Jackson - Java JSON library