Examples with ClassDescriptor org.apache.cayenne.reflect.ClassDescriptor used on opensource projects

Example 6 with ClassDescriptor

use of org.apache.cayenne.reflect.ClassDescriptor in project cayenne by apache.

the class PostprocessVisitor method processObjectChange.

private void processObjectChange(DbRowOp dbRow) {
    if (dbRow.getChangeId().getEntityName().startsWith(ASTDbPath.DB_PREFIX)) {
        return;
    }
    DataRow dataRow = context.currentSnapshot(dbRow.getObject());
    if (dbRow.getObject() instanceof DataObject) {
        DataObject dataObject = (DataObject) dbRow.getObject();
        dataRow.setReplacesVersion(dataObject.getSnapshotVersion());
        dataObject.setSnapshotVersion(dataRow.getVersion());
    }
    if (updatedSnapshots == null) {
        updatedSnapshots = new HashMap<>();
    }
    updatedSnapshots.put(dbRow.getObject().getObjectId(), dataRow);
    // update Map reverse relationships
    ClassDescriptor descriptor = context.getEntityResolver().getClassDescriptor(dbRow.getChangeId().getEntityName());
    for (ArcProperty arc : descriptor.getMapArcProperties()) {
        ToManyMapProperty reverseArc = (ToManyMapProperty) arc.getComplimentaryReverseArc();
        // must resolve faults... hopefully for to-one this will not cause extra fetches...
        Object source = arc.readProperty(dbRow.getObject());
        if (source != null && !reverseArc.isFault(source)) {
            remapTarget(reverseArc, source, dbRow.getObject());
        }
    }
}

Example 7 with ClassDescriptor

use of org.apache.cayenne.reflect.ClassDescriptor in project cayenne by apache.

the class EntityResolverClassDescriptorIT method testArcProperties.

@Test
public void testArcProperties() {
    EntityResolver resolver = runtime.getDataDomain().getEntityResolver();
    resolver.getClassDescriptorMap().clearDescriptors();
    ClassDescriptor descriptor = resolver.getClassDescriptor("MtTable1");
    assertNotNull(descriptor);
    PropertyDescriptor p = descriptor.getProperty(MtTable1.TABLE2ARRAY.getName());
    assertTrue(p instanceof ArcProperty);
    ClassDescriptor target = ((ArcProperty) p).getTargetDescriptor();
    assertNotNull(target);
    assertSame(resolver.getClassDescriptor("MtTable2"), target);
    assertNotNull(((ArcProperty) p).getComplimentaryReverseArc());
    assertEquals(MtTable2.TABLE1.getName(), ((ArcProperty) p).getComplimentaryReverseArc().getName());
}

Example 8 with ClassDescriptor

use of org.apache.cayenne.reflect.ClassDescriptor in project cayenne by apache.

the class EntityResolverClassDescriptorIT method testServerDescriptorFactory.

@Test
public void testServerDescriptorFactory() {
    EntityResolver resolver = runtime.getDataDomain().getEntityResolver();
    resolver.getClassDescriptorMap().clearDescriptors();
    ClassDescriptor descriptor = mock(ClassDescriptor.class);
    ClassDescriptorFactory factory = mock(ClassDescriptorFactory.class);
    when(factory.getDescriptor("MtTable1")).thenReturn(descriptor);
    resolver.getClassDescriptorMap().addFactory(factory);
    try {
        ClassDescriptor resolved = resolver.getClassDescriptor("MtTable1");
        assertNotNull(resolved);
        resolved = ((LazyClassDescriptorDecorator) resolved).getDescriptor();
        assertSame(descriptor, resolved);
    } finally {
        resolver.getClassDescriptorMap().removeFactory(factory);
    }
}

Example 9 with ClassDescriptor

use of org.apache.cayenne.reflect.ClassDescriptor in project cayenne by apache.

the class DataContext method objectFromDataRow.

/**
 * Creates a DataObject from DataRow.
 *
 * @see DataRow
 * @since 3.1
 */
public <T extends Persistent> T objectFromDataRow(Class<T> objectClass, DataRow dataRow) {
    ObjEntity entity = this.getEntityResolver().getObjEntity(objectClass);
    if (entity == null) {
        throw new CayenneRuntimeException("Unmapped Java class: %s", objectClass);
    }
    ClassDescriptor descriptor = getEntityResolver().getClassDescriptor(entity.getName());
    List<T> list = objectsFromDataRows(descriptor, Collections.singletonList(dataRow));
    return list.get(0);
}

Example 10 with ClassDescriptor

use of org.apache.cayenne.reflect.ClassDescriptor in project cayenne by apache.

the class DataContext method findOrCreateObject.

/**
 * An internal version of {@link #localObject(Persistent)} that operates on
 * ObjectId instead of Persistent, and wouldn't attempt to look up an object
 * in the parent channel.
 *
 * @since 3.1
 */
Persistent findOrCreateObject(ObjectId id) {
    if (id == null) {
        throw new IllegalArgumentException("Null ObjectId");
    }
    // behavior.
    synchronized (getGraphManager()) {
        Persistent cachedObject = (Persistent) getGraphManager().getNode(id);
        // return an existing object
        if (cachedObject != null) {
            int state = cachedObject.getPersistenceState();
            // objects...
            if (state != PersistenceState.MODIFIED && state != PersistenceState.DELETED) {
                ClassDescriptor descriptor = getEntityResolver().getClassDescriptor(id.getEntityName());
                descriptor.injectValueHolders(cachedObject);
            }
            return cachedObject;
        }
        // create and register a hollow object
        ClassDescriptor descriptor = getEntityResolver().getClassDescriptor(id.getEntityName());
        Persistent localObject = (Persistent) descriptor.createObject();
        localObject.setObjectContext(this);
        localObject.setObjectId(id);
        getGraphManager().registerNode(id, localObject);
        localObject.setPersistenceState(PersistenceState.HOLLOW);
        return localObject;
    }
}