foundation/eclipselink.core.test/src/it/java/org/eclipse/persistence/testing/tests/dynamic/entitytype/EntityTypeFromScratch.java

/*
 * Copyright (c) 1998, 2021 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0,
 * or the Eclipse Distribution License v. 1.0 which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
 */

// Contributors:
//     dclarke - Dynamic Persistence
//       http://wiki.eclipse.org/EclipseLink/Development/Dynamic
//       (https://bugs.eclipse.org/bugs/show_bug.cgi?id=200045)
//     mnorman - tweaks to work from Ant command-line,
//               get database properties from System, etc.
//
package org.eclipse.persistence.testing.tests.dynamic.entitytype;

//JUnit4 imports
import org.junit.AfterClass;
import org.junit.Test;
import static org.junit.Assert.assertEquals;

//EclipseLink imports
import org.eclipse.persistence.dynamic.DynamicEntity;
import org.eclipse.persistence.dynamic.DynamicType;
import org.eclipse.persistence.dynamic.DynamicTypeBuilder;
import org.eclipse.persistence.sessions.DatabaseSession;
import org.eclipse.persistence.tools.schemaframework.SchemaManager;

//domain-specific (testing) imports
import static org.eclipse.persistence.testing.tests.dynamic.DynamicTestingHelper.createSession;

/**
 *
 * @author dclarke
 * @since EclipseLink 1.2
 */
public class EntityTypeFromScratch {

    static final String TABLE_NAME = "MY_ENTITY";

    @AfterClass
    public static void tearDown() {
        DatabaseSession ds = createSession();
        ds.login();
        ds.executeNonSelectingSQL("DROP TABLE " + TABLE_NAME);
        ds.logout();
    }

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

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

        DatabaseSession session = createSession();
        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 DynamicType 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 factory.getType();
    }

}