dynamic/branches/1.1.0/eclipselink.core.test.dynamic/src/org/eclipse/persistence/testing/tests/dynamic/EntityTypeFromScratch.java

/*******************************************************************************
 * Copyright (c) 1998, 2008 Oracle. All rights reserved.
 * This program and the accompanying materials are made available under the 
 * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0 
 * which accompanies this distribution. 
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at 
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *     dclarke - Dynamic Persistence INCUBATION - Enhancement 200045
 *     			 http://wiki.eclipse.org/EclipseLink/Development/JPA/Dynamic
 *     
 * This code is being developed under INCUBATION and is not currently included 
 * in the automated EclipseLink build. The API in this code may change, or 
 * may never be included in the product. Please provide feedback through mailing 
 * lists or the bug database.
 ******************************************************************************/
package org.eclipse.persistence.testing.tests.dynamic;

import static junit.framework.Assert.assertEquals;

import org.eclipse.persistence.dynamic.DynamicClassLoader;
import org.eclipse.persistence.dynamic.DynamicEntity;
import org.eclipse.persistence.dynamic.DynamicTypeBuilder;
import org.eclipse.persistence.internal.dynamic.DynamicEntityImpl;
import org.eclipse.persistence.internal.dynamic.DynamicTypeImpl;
import org.eclipse.persistence.logging.SessionLog;
import org.eclipse.persistence.sessions.DatabaseLogin;
import org.eclipse.persistence.sessions.DatabaseSession;
import org.eclipse.persistence.sessions.Project;
import org.eclipse.persistence.tools.schemaframework.SchemaManager;
import org.junit.Test;

/**
 * 
 * @author dclarke
 * @since EclipseLink 1.1
 */
public class EntityTypeFromScratch {

    @Test
public void entityTypeFromDescriptor() throws Exception {
    DynamicTypeImpl entityType = buildMyEntityType();

    assertEquals(MyEntity.class, entityType.getJavaClass());

    DatabaseSession session = new Project(buildDatabaseLogin()).createDatabaseSession();
    session.getSessionLog().setLevel(SessionLog.FINE);
    session.login();

    session.addDescriptor(entityType.getDescriptor());
    new SchemaManager(session).replaceDefaultTables();

    DynamicEntity entity = entityType.newDynamicEntity();
    entity.set("id", 1);
    entity.set("name", "Name");

    session.insertObject(entity);

    session.logout();

}

private DynamicTypeImpl buildMyEntityType() {
    DynamicTypeBuilder factory = new DynamicTypeBuilder(MyEntity.class, null, "MY_ENTITY");
    factory.setPrimaryKeyFields("ID");
    factory.addDirectMapping("id", int.class, "ID");
    factory.addDirectMapping("name", String.class, "NAME");

    return (DynamicTypeImpl) factory.getType();
}

    /**
     * Return
     */
    private DatabaseLogin buildDatabaseLogin() {
        DatabaseLogin login = new DatabaseLogin();

        login.useOracleThinJDBCDriver();
        login.setDatabaseURL("localhost:1521:ORCL");
        login.setUserName("scott");
        login.setPassword("tiger");

        // TODO - override with values from system properties

        return login;
    }

    /**
     * Simple concrete subclass of DynamicEntityImpl to test the functionality
     * of EntityType independently of the {@link DynamicClassLoader}
     * functionality which typically generates subclasses.
     */
    public static class MyEntity extends DynamicEntityImpl {

        protected MyEntity(DynamicTypeImpl type) {
            super(type);
        }

    }
}