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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.hibernate;
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import java.io.Serializable;
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import java.sql.PreparedStatement;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import java.sql.Types;
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import java.util.UUID;
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import org.apache.log4j.Logger;
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import org.hibernate.Hibernate;
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import org.hibernate.HibernateException;
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import org.hibernate.usertype.UserType;
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/**
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* @author a.mueller
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* @created 22.07.2008
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* @version 1.0
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*/
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public class UUIDUserType implements UserType {
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@SuppressWarnings("unused")
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private static final Logger logger = Logger.getLogger(UUIDUserType.class);
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private static final int[] TYPES = { Types.VARCHAR };
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/* (non-Javadoc)
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* @see org.hibernate.usertype.UserType#assemble(java.io.Serializable, java.lang.Object)
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*/
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public Object assemble(Serializable cached, Object owner) throws HibernateException {
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try {
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if(cached == null) {
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return null;
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} else {
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return UUID.fromString(cached.toString());
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}
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} catch (IllegalArgumentException e) {
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throw new HibernateException(e);
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}
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}
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/* (non-Javadoc)
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* @see org.hibernate.usertype.UserType#deepCopy(java.lang.Object)
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*/
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public Object deepCopy(Object o) throws HibernateException {
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if (o == null) {
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return null;
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}
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UUID uuid = (UUID) o;
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try {
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return UUID.fromString(uuid.toString());
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} catch (IllegalArgumentException e) {
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throw new HibernateException(e);
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}
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}
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/* (non-Javadoc)
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* @see org.hibernate.usertype.UserType#disassemble(java.lang.Object)
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*/
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public Serializable disassemble(Object value) throws HibernateException {
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if(value == null) {
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return null;
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} else {
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UUID uuid = (UUID) value;
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return uuid.toString();
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}
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}
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/* (non-Javadoc)
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* @see org.hibernate.usertype.UserType#equals(java.lang.Object, java.lang.Object)
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*/
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public boolean equals(Object x, Object y) throws HibernateException {
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return (x == y) || (x != null && y != null && (x.equals(y)));
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}
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/* (non-Javadoc)
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* @see org.hibernate.usertype.UserType#hashCode(java.lang.Object)
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*/
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public int hashCode(Object x) throws HibernateException {
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return x.hashCode();
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}
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/* (non-Javadoc)
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* @see org.hibernate.usertype.UserType#isMutable()
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*/
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public boolean isMutable() {
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return false;
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}
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/* (non-Javadoc)
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* @see org.hibernate.usertype.UserType#nullSafeGet(java.sql.ResultSet, java.lang.String[], java.lang.Object)
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*/
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public Object nullSafeGet(ResultSet resultSet, String[] names, Object o)
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throws HibernateException, SQLException {
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String val = (String) Hibernate.STRING.nullSafeGet(resultSet, names[0]);
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if(val == null) {
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return null;
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} else {
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try {
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return UUID.fromString(val);
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} catch (IllegalArgumentException e) {
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throw new HibernateException(e);
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}
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}
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}
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/* (non-Javadoc)
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* @see org.hibernate.usertype.UserType#nullSafeSet(java.sql.PreparedStatement, java.lang.Object, int)
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*/
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public void nullSafeSet(PreparedStatement preparedStatement, Object o, int index)
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throws HibernateException, SQLException {
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if (null == o) {
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preparedStatement.setNull(index, Types.VARCHAR);
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} else {
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UUID uuid = (UUID)o;
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preparedStatement.setString(index, uuid.toString());
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}
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}
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/* (non-Javadoc)
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* @see org.hibernate.usertype.UserType#replace(java.lang.Object, java.lang.Object, java.lang.Object)
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*/
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public Object replace(Object original, Object target, Object owner)
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throws HibernateException {
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return original;
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}
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/* (non-Javadoc)
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* @see org.hibernate.usertype.UserType#returnedClass()
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*/
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public Class returnedClass() {
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return UUID.class;
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}
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/* (non-Javadoc)
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* @see org.hibernate.usertype.UserType#sqlTypes()
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*/
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public int[] sqlTypes() {
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return TYPES;
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}
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}
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