Examples with ElementMetaData org.datanucleus.metadata.ElementMetaData used on opensource projects

Example 21 with ElementMetaData

use of org.datanucleus.metadata.ElementMetaData in project tests by datanucleus.

the class XMLTest method testOneToManyBiJoin.

/**
 * Test of JPA 1-N unidir FK relation.
 * This is really a 1-N uni join since JPA doesnt support 1-N uni FK.
 */
/*public void testOneToManyUniFK()
    {
        NucleusContext pmfcontext = new NucleusContext(new PersistenceConfiguration(){});
        pmfcontext.setApi("JPA");
        ClassLoaderResolver clr = new ClassLoaderResolverImpl();
        MetaDataManager metaDataMgr = new JPAMetaDataManager(pmfcontext);
        PersistenceUnitMetaData pumd = getMetaDataForPersistenceUnit(nucleusCtx, "JPATest");
        metaDataMgr.initialise(pumd, clr);

        // owner side
        ClassMetaData cmd1 = (ClassMetaData)metaDataMgr.getMetaDataForClass(Site.class.getName(), clr);
        AbstractMemberMetaData fmd1 = cmd1.getMetaDataForMember("offices");
        assertNotNull("Site.offices is null!", fmd1);
        assertEquals("Site.offices mapped-by is incorrect", fmd1.getMappedBy(), null);
        assertEquals("Site.offices relationType is incorrect",
            fmd1.getRelationType(clr), Relation.ONE_TO_MANY_UNI);
        assertEquals("Site.offices jointable name is incorrect", fmd1.getTable(), null);
        assertNotNull("Site.offices should have join but doesnt", fmd1.getJoinMetaData());

        ElementMetaData elemmd = fmd1.getElementMetaData();
        assertNotNull("Site.offices has no element column info but should", elemmd);
        ColumnMetaData[] colmds = elemmd.getColumnMetaData();
        assertNotNull("Site.offices has incorrect element columns", colmds);
        assertEquals("Site.offices has incorrect number of element columns", colmds.length, 1);
        assertEquals("Site.offices has incorrect element column name", colmds[0].getName(), "SITE_ID");
    }*/
/**
 * Test of JPA 1-N bidir JoinTable relation
 */
public void testOneToManyBiJoin() {
    NucleusContext nucleusCtx = new PersistenceNucleusContextImpl("JPA", null);
    ClassLoaderResolver clr = nucleusCtx.getClassLoaderResolver(null);
    MetaDataManager metaDataMgr = new JPAMetaDataManager(nucleusCtx);
    PersistenceUnitMetaData pumd = getMetaDataForPersistenceUnit(nucleusCtx, "JPATest");
    metaDataMgr.loadPersistenceUnit(pumd, null);
    // owner side
    ClassMetaData cmd1 = (ClassMetaData) metaDataMgr.getMetaDataForClass(Manager.class.getName(), clr);
    assertEquals("Manager has incorrect table name", cmd1.getTable(), "JPA_MD_MANAGER");
    AbstractMemberMetaData fmd1 = cmd1.getMetaDataForMember("subordinates");
    assertNotNull("Manager.subordinates is null!", fmd1);
    assertEquals("Manager.subordinates mapped-by is incorrect", fmd1.getMappedBy(), "manager");
    assertEquals("Manager.subordinates relationType is incorrect", fmd1.getRelationType(clr), RelationType.ONE_TO_MANY_BI);
    assertEquals("Manager.subordinates jointable name is incorrect", fmd1.getTable(), "JPA_MD_MGR_EMPLOYEES");
    // non-owner side
    ClassMetaData cmd2 = (ClassMetaData) metaDataMgr.getMetaDataForClass(Employee.class.getName(), clr);
    assertEquals("Employee has incorrect table name", cmd2.getTable(), "JPA_MD_EMPLOYEE");
    AbstractMemberMetaData fmd2 = cmd2.getMetaDataForMember("manager");
    assertNotNull("Employee.manager is null!", fmd2);
    assertEquals("Employee.manager mapped-by is incorrect", fmd2.getMappedBy(), null);
    assertEquals("Employee.manager relationType is incorrect", fmd2.getRelationType(clr), RelationType.MANY_TO_ONE_BI);
    assertEquals("Employee.manager jointable name is incorrect", fmd2.getTable(), null);
    // join-table
    JoinMetaData joinmd = fmd1.getJoinMetaData();
    assertNotNull("Manager.subordinates has no join table!", joinmd);
    assertNotNull("Manager.subordinates has incorrect join columns", joinmd.getColumnMetaData());
    assertEquals("Manager.subordinates has incorrect number of join columns", 1, joinmd.getColumnMetaData().length);
    assertEquals("Manager.subordinates has incorrect owner join column name", "MGR_ID", joinmd.getColumnMetaData()[0].getName());
    ElementMetaData elemmd = fmd1.getElementMetaData();
    assertNotNull("Manager.subordinates has no element column info but should", elemmd);
    assertNotNull("Manager.subordinates has incorrect element columns", elemmd.getColumnMetaData());
    assertEquals("Manager.subordinates has incorrect number of element columns", 1, elemmd.getColumnMetaData().length);
    assertEquals("Manager.subordinates has incorrect element join column name", "EMP_ID", elemmd.getColumnMetaData()[0].getName());
}

Example 22 with ElementMetaData

use of org.datanucleus.metadata.ElementMetaData in project tests by datanucleus.

the class XMLTest method testOneToManyBiFK.

/**
 * Test of JPA 1-N bidir FK relation
 */
public void testOneToManyBiFK() {
    NucleusContext nucleusCtx = new PersistenceNucleusContextImpl("JPA", null);
    ClassLoaderResolver clr = nucleusCtx.getClassLoaderResolver(null);
    MetaDataManager metaDataMgr = new JPAMetaDataManager(nucleusCtx);
    PersistenceUnitMetaData pumd = getMetaDataForPersistenceUnit(nucleusCtx, "JPATest");
    metaDataMgr.loadPersistenceUnit(pumd, null);
    // owner side
    ClassMetaData cmd1 = (ClassMetaData) metaDataMgr.getMetaDataForClass(Manager.class.getName(), clr);
    AbstractMemberMetaData fmd1 = cmd1.getMetaDataForMember("departments");
    assertNotNull("Manager.departments is null!", fmd1);
    assertEquals("Manager.departments mapped-by is incorrect", fmd1.getMappedBy(), "manager");
    assertEquals("Manager.departments relationType is incorrect", fmd1.getRelationType(clr), RelationType.ONE_TO_MANY_BI);
    ElementMetaData elemmd = fmd1.getElementMetaData();
    assertNull("Manager.departments has join column info but shouldnt (specified on N side)", elemmd);
    // non-owner side
    ClassMetaData cmd2 = (ClassMetaData) metaDataMgr.getMetaDataForClass(Department.class.getName(), clr);
    AbstractMemberMetaData fmd2 = cmd2.getMetaDataForMember("manager");
    assertNotNull("Department.manager is null!", fmd2);
    assertEquals("Department.manager mapped-by is incorrect", fmd2.getMappedBy(), null);
    assertEquals("Department.manager relationType is incorrect", fmd2.getRelationType(clr), RelationType.MANY_TO_ONE_BI);
    ColumnMetaData[] colmds = fmd2.getColumnMetaData();
    assertNotNull("Department.manager has no join column info", colmds);
    assertEquals("Department.manager has incorrect number of joincolumns", colmds.length, 1);
    assertEquals("Department.manager joincolumn name is wrong", "MGR_ID", colmds[0].getName());
}