| /* |
| * Copyright (c) 2008-2012, 2015 Eike Stepper (Berlin, Germany) and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Martin Taal - initial api |
| * Eike Stepper - maintenance |
| */ |
| package org.eclipse.emf.cdo.server.internal.hibernate.tuplizer; |
| |
| import org.eclipse.emf.cdo.common.id.CDOID; |
| import org.eclipse.emf.cdo.common.id.CDOIDExternal; |
| import org.eclipse.emf.cdo.common.id.CDOIDTemp; |
| import org.eclipse.emf.cdo.common.revision.CDORevision; |
| import org.eclipse.emf.cdo.server.internal.hibernate.HibernateUtil; |
| |
| import org.hibernate.engine.spi.SessionImplementor; |
| import org.hibernate.type.StandardBasicTypes; |
| import org.hibernate.usertype.UserType; |
| |
| import java.io.Serializable; |
| import java.sql.PreparedStatement; |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.sql.Types; |
| |
| /** |
| * Persists a CDOID in the DB. Currently {@link CDOIDExternal} is supported. |
| */ |
| public class CDOIDUserType implements UserType |
| { |
| private static final int[] SQL_TYPES = { Types.VARCHAR }; |
| |
| public CDOIDUserType() |
| { |
| } |
| |
| public int[] sqlTypes() |
| { |
| return SQL_TYPES; |
| } |
| |
| public Class<?> returnedClass() |
| { |
| return CDOID.class; |
| } |
| |
| public boolean isMutable() |
| { |
| return false; |
| } |
| |
| public Object deepCopy(Object value) |
| { |
| return value; |
| } |
| |
| public boolean equals(Object x, Object y) |
| { |
| if (x == y) |
| { |
| return true; |
| } |
| |
| if (x == null || y == null) |
| { |
| return false; |
| } |
| |
| return x.equals(y); |
| } |
| |
| public Object nullSafeGet(ResultSet rs, String[] names, SessionImplementor sessionImplementor, Object owner) |
| throws SQLException |
| { |
| final String value = StandardBasicTypes.STRING.nullSafeGet(rs, names[0], sessionImplementor); |
| if (rs.wasNull()) |
| { |
| return null; |
| } |
| |
| return HibernateUtil.getInstance().convertStringToCDOID(value); |
| } |
| |
| public void nullSafeSet(PreparedStatement statement, Object value, int index, SessionImplementor sessionImplementor) |
| throws SQLException |
| { |
| if (value == null || value instanceof CDOID && ((CDOID)value).isNull()) |
| { |
| statement.setNull(index, Types.VARCHAR); |
| return; |
| } |
| else if (value instanceof CDOIDTemp) |
| { |
| // try to resolve the temp id |
| final CDORevision revision = HibernateUtil.getInstance().getCDORevisionNullable((CDOID)value); |
| if (revision != null) |
| { |
| value = HibernateUtil.getInstance().getCDOID(revision); |
| } |
| } |
| else if (value instanceof CDORevision) |
| { |
| value = HibernateUtil.getInstance().getCDOIDHibernate((CDORevision)value); |
| } |
| |
| final String strValue = value instanceof String ? (String)value |
| : HibernateUtil.getInstance().convertCDOIDToString((CDOID)value); |
| if (strValue == null) |
| { |
| statement.setNull(index, Types.VARCHAR); |
| return; |
| } |
| |
| statement.setString(index, strValue); |
| } |
| |
| public Serializable disassemble(Object value) |
| { |
| return (Serializable)value; |
| } |
| |
| public Object assemble(Serializable cachedValue, Object owner) |
| { |
| return cachedValue; |
| } |
| |
| public Object replace(Object original, Object target, Object owner) |
| { |
| return original; |
| } |
| |
| public int hashCode(Object x) |
| { |
| return x.hashCode(); |
| } |
| } |