An extension of com.fasterxml.jackson.databind.introspect.NopAnnotationIntrospector

VersionedAnnotationIntrospector.java

/*
 * Copyright 2015 dariens.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.blackberry.bdp.common.versioned;

import com.fasterxml.jackson.databind.introspect.AnnotatedMember;
import com.fasterxml.jackson.databind.introspect.NopAnnotationIntrospector;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * This class was an attempt at limiting attributes for serialization 
 * and de-serialization based on the VersionedAttribute annotation
 * however when applied to an mapper the resulting serialized string
 * is empty.  
 */
public class VersionedAnnotationIntrospector extends NopAnnotationIntrospector {

	private static final Logger LOG = LoggerFactory.getLogger(VersionedAnnotationIntrospector.class);

	@Override
	public boolean hasIgnoreMarker(final AnnotatedMember m) {
		if (m.hasAnnotation(VersionedAttribute.class)) {
			LOG.info("member {} has anno", m);
			return false;
		} else {
			LOG.info("member {} DOES NOT have anno", m);
			return true;
		}
	}

	/*
	@Override
	public Boolean hasRequiredMarker(AnnotatedMember m) {
		if (m.hasAnnotation(VersionedAttribute.class)) {
			LOG.info("member {} has anno", m);
			return true;
		}
		return null;
	}
	*/
}

Legacy/Deprecated--concept was cool but I opted for mixin's