Java tutorial
/* * Copyright (C) 2011 Benoit GUEROUT <bguerout at gmail dot com> and Yves AMSELLEM <amsellem dot yves at gmail dot com> * * 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 org.mango.marshall.jackson; import com.fasterxml.jackson.core.JsonParser; import com.fasterxml.jackson.core.JsonProcessingException; import com.fasterxml.jackson.databind.DeserializationContext; import com.fasterxml.jackson.databind.JsonDeserializer; import java.io.IOException; import java.util.Date; class BackwardDateDeserializer extends JsonDeserializer<Date> { private final NativeDeserializer deserializer; public BackwardDateDeserializer(NativeDeserializer deserializer) { this.deserializer = deserializer; } @Override public Date deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException, JsonProcessingException { Object deserializedDate = parse(jp, ctxt); if (deserializedDate instanceof Long) return new Date((Long) deserializedDate); return (Date) deserializedDate; } private Object parse(JsonParser jp, DeserializationContext ctxt) throws IOException { return deserializer.deserialize(jp, ctxt); } }