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

Example 6 with ElementMetaData

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

the class AnnotationTest 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());
}

Example 7 with ElementMetaData

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

the class AnnotationTest method testOneToManyBiJoin.

/**
 * Test of JPA 1-N unidir FK relation.
 * Really is 1-N uni join since JPA doesnt support 1-N uni FK
 */
/*public void testOneToManyUniFK()
    {
        NucleusContext nucleusCtx = new NucleusContext(new PersistenceConfiguration(){});
        nucleusCtx.setApi("JPA");
        MetaDataManager metaDataMgr = new JPAMetaDataManager(nucleusCtx);
        ClassLoaderResolver clr = new ClassLoaderResolverImpl();

        // 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 join 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_AN_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_AN_MGR_EMPLOYEES");
    // non-owner side
    ClassMetaData cmd2 = (ClassMetaData) metaDataMgr.getMetaDataForClass(Employee.class.getName(), clr);
    assertEquals("Employee has incorrect table name", cmd2.getTable(), "JPA_AN_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 8 with ElementMetaData

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

the class XMLTest method testOneToManyUniJoin.

/**
 * Test of JPA 1-N unidir JoinTable relation
 */
public void testOneToManyUniJoin() {
    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(Department.class.getName(), clr);
    AbstractMemberMetaData fmd1 = cmd1.getMetaDataForMember("projects");
    assertNotNull("Department.projects is null!", fmd1);
    assertEquals("Department.projects mapped-by is incorrect", null, fmd1.getMappedBy());
    assertEquals("Department.projects relationType is incorrect", RelationType.ONE_TO_MANY_UNI, fmd1.getRelationType(clr));
    assertEquals("Department.projects jointable name is incorrect", "JPA_MD_DEPT_PROJECTS", fmd1.getTable());
    JoinMetaData joinmd = fmd1.getJoinMetaData();
    assertNotNull("Department.projects has no join table!", joinmd);
    assertNotNull("Department.projects has incorrect join columns", joinmd.getColumnMetaData());
    assertEquals("Department.projects has incorrect number of join columns", 1, joinmd.getColumnMetaData().length);
    assertEquals("Department.projects has incorrect join column name", joinmd.getColumnMetaData()[0].getName(), "DEPT_ID");
    ElementMetaData elemmd = fmd1.getElementMetaData();
    assertNotNull("Department.projects has no element column info but should", elemmd);
    ColumnMetaData[] colmds = elemmd.getColumnMetaData();
    assertNotNull("Department.projects has incorrect element columns", colmds);
    assertEquals("Department.projects has incorrect number of element columns", 1, colmds.length);
    assertEquals("Department.projects has incorrect element column name", "PROJECT_ID", colmds[0].getName());
}

Example 9 with ElementMetaData

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

the class XMLTest method testManyToMany.

/**
 * Test of JPA M-N relation
 */
public void testManyToMany() {
    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(PetroleumCustomer.class.getName(), clr);
    assertEquals("Customer has incorrect table name", cmd1.getTable(), "JPA_MD_PETROL_CUSTOMER");
    AbstractMemberMetaData fmd1 = cmd1.getMetaDataForMember("suppliers");
    assertNotNull("Customer.suppliers is null!", fmd1);
    assertEquals("Customer.suppliers mapped-by is incorrect", fmd1.getMappedBy(), "customers");
    assertEquals("Customer.suppliers relationType is incorrect", fmd1.getRelationType(clr), RelationType.MANY_TO_MANY_BI);
    assertEquals("Customer.suppliers jointable name is incorrect", fmd1.getTable(), "JPA_MD_PETROL_CUST_SUPP");
    // non-owner side
    ClassMetaData cmd2 = (ClassMetaData) metaDataMgr.getMetaDataForClass(PetroleumSupplier.class.getName(), clr);
    assertEquals("Supplier has incorrect table name", cmd2.getTable(), "JPA_MD_PETROL_SUPPLIER");
    AbstractMemberMetaData fmd2 = cmd2.getMetaDataForMember("customers");
    assertNotNull("Supplier.customers is null!", fmd2);
    assertEquals("Supplier.customers mapped-by is incorrect", fmd2.getMappedBy(), null);
    assertEquals("Supplier.customers relationType is incorrect", fmd2.getRelationType(clr), RelationType.MANY_TO_MANY_BI);
    assertEquals("Supplier.customers jointable name is incorrect", fmd2.getTable(), null);
    // join table info
    JoinMetaData joinmd = fmd1.getJoinMetaData();
    assertNotNull("Customer.suppliers has no join table!", joinmd);
    assertNotNull("Customer.suppliers has incorrect join columns", joinmd.getColumnMetaData());
    assertEquals("Customer.suppliers has incorrect number of join columns", joinmd.getColumnMetaData().length, 1);
    assertEquals("Customer.suppliers has incorrect owner join column name", joinmd.getColumnMetaData()[0].getName(), "CUSTOMER_ID");
    ElementMetaData elemmd = fmd1.getElementMetaData();
    assertNotNull("Customer.suppliers has no element column info but should", elemmd);
    assertNotNull("Customer.suppliers has incorrect element columns", elemmd.getColumnMetaData());
    assertEquals("Customer.suppliers has incorrect number of element columns", elemmd.getColumnMetaData().length, 1);
    assertEquals("Customer.suppliers has incorrect element join column name", elemmd.getColumnMetaData()[0].getName(), "SUPPLIER_ID");
}

Example 10 with ElementMetaData

use of org.datanucleus.metadata.ElementMetaData in project datanucleus-rdbms by datanucleus.

the class CollectionTable method initialize.

/**
 * Method to initialise the table definition.
 * @param clr The ClassLoaderResolver
 */
public void initialize(ClassLoaderResolver clr) {
    super.initialize(clr);
    // Add column(s) for element
    boolean elementPC = (mmd.hasCollection() && mmd.getCollection().elementIsPersistent());
    Class elementClass = clr.classForName(getElementType());
    if (isSerialisedElement() || isEmbeddedElementPC() || (isEmbeddedElement() && !elementPC) || ClassUtils.isReferenceType(elementClass)) {
        // Element = PC(embedded), PC(serialised), Non-PC(serialised), Non-PC(embedded), Reference
        // Join table has : ownerMapping (PK), elementMapping, orderMapping (PK)
        elementMapping = storeMgr.getMappingManager().getMapping(this, mmd, clr, FieldRole.ROLE_COLLECTION_ELEMENT);
        if (NucleusLogger.DATASTORE.isDebugEnabled()) {
            logMapping(mmd.getFullFieldName() + ".[ELEMENT]", elementMapping);
        }
    } else {
        // Element = PC
        // Join table has : ownerMapping (PK), elementMapping, orderMapping (optional)
        ColumnMetaData[] elemColmd = null;
        AbstractMemberMetaData[] relatedMmds = mmd.getRelatedMemberMetaData(clr);
        ElementMetaData elemmd = mmd.getElementMetaData();
        if (elemmd != null && elemmd.getColumnMetaData() != null && elemmd.getColumnMetaData().length > 0) {
            // Column mappings defined at this side (1-N, M-N)
            elemColmd = elemmd.getColumnMetaData();
        } else if (relatedMmds != null && relatedMmds[0].getJoinMetaData() != null && relatedMmds[0].getJoinMetaData().getColumnMetaData() != null && relatedMmds[0].getJoinMetaData().getColumnMetaData().length > 0) {
            // Column mappings defined at other side (M-N) on <join>
            elemColmd = relatedMmds[0].getJoinMetaData().getColumnMetaData();
        }
        elementMapping = ColumnCreator.createColumnsForJoinTables(elementClass, mmd, elemColmd, storeMgr, this, false, false, FieldRole.ROLE_COLLECTION_ELEMENT, clr, null);
        RelationType relationType = mmd.getRelationType(clr);
        if (Boolean.TRUE.equals(mmd.getContainer().allowNulls()) && relationType != RelationType.MANY_TO_MANY_BI) {
            // 1-N : Make all element col(s) nullable so we can store null elements
            for (int i = 0; i < elementMapping.getNumberOfDatastoreMappings(); i++) {
                Column elementCol = elementMapping.getDatastoreMapping(i).getColumn();
                elementCol.setNullable(true);
            }
        }
        if (NucleusLogger.DATASTORE.isDebugEnabled()) {
            logMapping(mmd.getFullFieldName() + ".[ELEMENT]", elementMapping);
        }
    }
    PrimaryKeyMetaData pkmd = (mmd.getJoinMetaData() != null ? mmd.getJoinMetaData().getPrimaryKeyMetaData() : null);
    boolean pkColsSpecified = (pkmd != null ? pkmd.getColumnMetaData() != null : false);
    boolean pkRequired = requiresPrimaryKey();
    // Add order mapping if required
    boolean orderRequired = false;
    if (mmd.getOrderMetaData() != null) {
        if (mmd.getOrderMetaData().isIndexedList()) {
            // Indexed Collection with <order>, so add index mapping
            orderRequired = true;
            RelationType relType = mmd.getRelationType(clr);
            if (relType == RelationType.MANY_TO_MANY_BI) {
                // Don't support M-N using indexed List
                throw new NucleusUserException(Localiser.msg("020002", mmd.getFullFieldName())).setFatal();
            }
        }
    } else if (List.class.isAssignableFrom(mmd.getType())) {
        // Indexed List with no <order>, so has index mapping
        orderRequired = true;
    } else if (pkRequired && !pkColsSpecified) {
        // PK is required so maybe need to add an index to form the PK
        if (isEmbeddedElementPC()) {
            if (mmd.getCollection().getElementClassMetaData(clr).getIdentityType() != IdentityType.APPLICATION) {
                // Embedded PC with datastore id so we need an index to form the PK
                orderRequired = true;
            }
        } else if (isSerialisedElement()) {
            // Serialised element, so need an index to form the PK
            orderRequired = true;
        } else if (elementMapping instanceof ReferenceMapping) {
            // ReferenceMapping, so have order if more than 1 implementation
            ReferenceMapping refMapping = (ReferenceMapping) elementMapping;
            if (refMapping.getJavaTypeMapping().length > 1) {
                orderRequired = true;
            }
        } else if (!(elementMapping instanceof PersistableMapping)) {
            // Non-PC, so depends if the element column can be used as part of a PK
            // TODO This assumes the elementMapping has a single column but what if it is Color with 4 cols?
            Column elementCol = elementMapping.getDatastoreMapping(0).getColumn();
            if (!storeMgr.getDatastoreAdapter().isValidPrimaryKeyType(elementCol.getJdbcType())) {
                // Not possible to use this Non-PC type as part of the PK
                orderRequired = true;
            }
        }
    }
    if (orderRequired) {
        // Order (index) column is required (integer based)
        ColumnMetaData orderColmd = null;
        if (mmd.getOrderMetaData() != null && mmd.getOrderMetaData().getColumnMetaData() != null && mmd.getOrderMetaData().getColumnMetaData().length > 0) {
            // Specified "order" column info
            orderColmd = mmd.getOrderMetaData().getColumnMetaData()[0];
            if (orderColmd.getName() == null) {
                // No column name so use default
                orderColmd = new ColumnMetaData(orderColmd);
                DatastoreIdentifier id = storeMgr.getIdentifierFactory().newIndexFieldIdentifier(mmd);
                orderColmd.setName(id.getName());
            }
        } else {
            // No column name so use default
            DatastoreIdentifier id = storeMgr.getIdentifierFactory().newIndexFieldIdentifier(mmd);
            orderColmd = new ColumnMetaData();
            orderColmd.setName(id.getName());
        }
        // JDO2 spec [18.5] order column is assumed to be "int"
        orderMapping = storeMgr.getMappingManager().getMapping(int.class);
        ColumnCreator.createIndexColumn(orderMapping, storeMgr, clr, this, orderColmd, pkRequired && !pkColsSpecified);
        if (NucleusLogger.DATASTORE.isDebugEnabled()) {
            logMapping(mmd.getFullFieldName() + ".[ORDER]", orderMapping);
        }
    }
    // Define primary key of the join table (if any)
    if (pkRequired) {
        if (pkColsSpecified) {
            // Apply the users PK specification
            applyUserPrimaryKeySpecification(pkmd);
        } else {
            // Define PK
            for (int i = 0; i < ownerMapping.getNumberOfDatastoreMappings(); i++) {
                ownerMapping.getDatastoreMapping(i).getColumn().setPrimaryKey();
            }
            if (orderRequired) {
                // Order column specified so owner+order are the PK
                orderMapping.getDatastoreMapping(0).getColumn().setPrimaryKey();
            } else {
                // No order column specified so owner+element are the PK
                for (int i = 0; i < elementMapping.getNumberOfDatastoreMappings(); i++) {
                    elementMapping.getDatastoreMapping(i).getColumn().setPrimaryKey();
                }
            }
        }
    }
    if (NucleusLogger.DATASTORE_SCHEMA.isDebugEnabled()) {
        NucleusLogger.DATASTORE_SCHEMA.debug(Localiser.msg("057023", this));
    }
    storeMgr.registerTableInitialized(this);
    state = TABLE_STATE_INITIALIZED;
}