com.welflex.model.hibernate.DateTimeUserType.java Source code

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Here is the source code for com.welflex.model.hibernate.DateTimeUserType.java

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/*
 * Copyright 2007 the original author or authors. 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.welflex.model.hibernate;

import java.io.Serializable;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Timestamp;
import java.sql.Types;

import org.hibernate.HibernateException;
import org.hibernate.usertype.UserType;
import org.joda.time.DateTime;

/** @author Arjen Poutsma */
public class DateTimeUserType implements UserType {

    public int[] sqlTypes() {
        return new int[] { Types.TIMESTAMP };
    }

    public Class<DateTime> returnedClass() {
        return DateTime.class;
    }

    public boolean isMutable() {
        return false;
    }

    public Object deepCopy(Object value) throws HibernateException {
        return value;
    }

    public Serializable disassemble(Object value) throws HibernateException {
        return (Serializable) value;
    }

    public Object assemble(Serializable cached, Object owner) throws HibernateException {
        return cached;
    }

    public Object replace(Object original, Object target, Object owner) throws HibernateException {
        return original;
    }

    public boolean equals(Object x, Object y) throws HibernateException {
        return x == y || !(x == null || y == null) && x.equals(y);
    }

    public int hashCode(Object x) throws HibernateException {
        return x.hashCode();
    }

    public Object nullSafeGet(ResultSet rs, String[] names, Object owner) throws HibernateException, SQLException {
        Timestamp timestamp = rs.getTimestamp(names[0]);
        if (rs.wasNull()) {
            return null;
        }
        return new DateTime(timestamp);
    }

    public void nullSafeSet(PreparedStatement st, Object value, int index) throws HibernateException, SQLException {
        if (value == null) {
            st.setNull(index, Types.TIMESTAMP);
        } else {
            DateTime dateTime = (DateTime) value;
            Timestamp timestamp = new Timestamp(dateTime.getMillis());
            st.setTimestamp(index, timestamp);
        }
    }

}