Hibernate example source code file (CompositeTestUserType.java)

This example Hibernate source code file (CompositeTestUserType.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Hibernate tags/keywords

component, component, compositetestusertype, hibernateexception, hibernateexception, io, jdbc, object, object, resultset, serializable, sessionimplementor, sessionimplementor, sql, sqlexception, string, type

The Hibernate CompositeTestUserType.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Middleware LLC.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.envers.test.entities.customtype;
import java.io.Serializable;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import org.hibernate.HibernateException;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.type.IntegerType;
import org.hibernate.type.StringType;
import org.hibernate.type.Type;
import org.hibernate.usertype.CompositeUserType;

/**
 * @author Andrew DePue
 * @author Adam Warski (adam at warski dot org)
 */
public class CompositeTestUserType implements CompositeUserType {
    public String[] getPropertyNames() {
        return new String[] { "prop1", "prop2" };
    }

    public Type[] getPropertyTypes() {
        return new Type[] { StringType.INSTANCE, IntegerType.INSTANCE };
    }

    public Object getPropertyValue(final Object component, final int property) throws HibernateException {
        Component comp = (Component) component;
        if (property == 0) {
            return comp.getProp1();
        } else {
            return comp.getProp2();
        }
    }

    public void setPropertyValue(final Object component, final int property, final Object value) throws HibernateException {
        Component comp = (Component) component;
        if (property == 0) {
            comp.setProp1((String) value);
        } else {
            comp.setProp2((Integer) value);
        }
    }

    public Class returnedClass() {
        return Component.class;
    }

    public boolean equals(final Object x, final Object y) throws HibernateException {
        //noinspection ObjectEquality
        if (x == y) {
            return true;
        }

        if (x == null || y == null) {
            return false;
        }

        return x.equals(y);
    }

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

    public Object nullSafeGet(final ResultSet rs, final String[] names,
                              final SessionImplementor session,
                              final Object owner) throws HibernateException, SQLException {
        final String prop1 = rs.getString(names[0]);
        if (prop1 == null) {
            return null;
        }
        final int prop2 = rs.getInt(names[1]);
        
        return new Component(prop1, prop2);
    }

    public void nullSafeSet(final PreparedStatement st, final Object value,
                            final int index, final SessionImplementor session)
            throws HibernateException, SQLException
    {
        if (value == null) {
            st.setNull(index, StringType.INSTANCE.sqlType());
            st.setNull(index + 1, IntegerType.INSTANCE.sqlType());
        } else {
            final Component comp = (Component) value;
            st.setString(index, comp.getProp1());
            st.setInt(index + 1, comp.getProp2());
        }
    }

    public Object deepCopy(final Object value) throws HibernateException {
        Component comp = (Component) value;
        return new Component(comp.getProp1(), comp.getProp2());
    }

    public boolean isMutable() {
        return true;
    }

    public Serializable disassemble(final Object value, final SessionImplementor session) throws HibernateException {
        return (Serializable) value;
    }

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

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