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

Example 26 with ToOneProperty

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

the class ObjectDiff method isNoop.

/**
 * Checks whether at least a single property is modified.
 */
@Override
public boolean isNoop() {
    // if we have no baseline to compare with, assume that there are changes
    if (snapshot == null) {
        return false;
    }
    if (flatIds != null && !flatIds.isEmpty()) {
        return false;
    }
    if (phantomFks != null && !phantomFks.isEmpty()) {
        return false;
    }
    int state = object.getPersistenceState();
    if (state == PersistenceState.NEW || state == PersistenceState.DELETED) {
        return false;
    }
    // check phantom mods
    final boolean[] modFound = new boolean[1];
    getClassDescriptor().visitProperties(new PropertyVisitor() {

        @Override
        public boolean visitAttribute(AttributeProperty property) {
            Object oldValue = snapshot.get(property.getName());
            Object newValue = property.readProperty(object);
            if (!Util.nullSafeEquals(oldValue, newValue)) {
                modFound[0] = true;
            }
            return !modFound[0];
        }

        @Override
        public boolean visitToMany(ToManyProperty property) {
            // flattened changes
            return true;
        }

        @Override
        public boolean visitToOne(ToOneProperty property) {
            if (arcSnapshot == null) {
                return true;
            }
            Object newValue = property.readPropertyDirectly(object);
            if (newValue instanceof Fault) {
                return true;
            }
            Object oldValue = arcSnapshot.get(property.getName());
            if (!Util.nullSafeEquals(oldValue, newValue != null ? ((Persistent) newValue).getObjectId() : null)) {
                modFound[0] = true;
            }
            return !modFound[0];
        }
    });
    return !modFound[0];
}

Example 27 with ToOneProperty

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

the class ObjectStore method processIndirectlyModifiedIDs.

/**
 * Requires external synchronization.
 *
 * @since 1.1
 */
void processIndirectlyModifiedIDs(Collection<ObjectId> indirectlyModifiedIDs) {
    for (ObjectId oid : indirectlyModifiedIDs) {
        // access object map directly - the method should be called in a synchronized context...
        final DataObject object = (DataObject) objectMap.get(oid);
        if (object == null || object.getPersistenceState() != PersistenceState.COMMITTED) {
            continue;
        }
        // for now break all "independent" object relationships...
        // in the future we may want to be more precise and go after modified
        // relationships only, or even process updated lists without invalidating...
        DataContextDelegate delegate = context.nonNullDelegate();
        if (delegate.shouldMergeChanges(object, null)) {
            ClassDescriptor descriptor = context.getEntityResolver().getClassDescriptor(oid.getEntityName());
            descriptor.visitProperties(new PropertyVisitor() {

                @Override
                public boolean visitToMany(ToManyProperty property) {
                    property.invalidate(object);
                    return true;
                }

                @Override
                public boolean visitToOne(ToOneProperty property) {
                    if (property.getRelationship().isSourceIndependentFromTargetChange()) {
                        property.invalidate(object);
                    }
                    return true;
                }

                @Override
                public boolean visitAttribute(AttributeProperty property) {
                    return true;
                }
            });
            delegate.finishedProcessDelete(object);
        }
    }
}

Example 28 with ToOneProperty

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

the class CayenneContextChildDiffLoader method arcCreated.

@Override
public void arcCreated(Object nodeId, Object targetNodeId, Object arcId) {
    final Persistent source = findObject(nodeId);
    final Persistent target = findObject(targetNodeId);
    // can result in NULL target here.
    if (target == null) {
        return;
    }
    ClassDescriptor descriptor = context.getEntityResolver().getClassDescriptor(((ObjectId) nodeId).getEntityName());
    ArcProperty property = (ArcProperty) descriptor.getProperty(arcId.toString());
    property.visit(new PropertyVisitor() {

        public boolean visitAttribute(AttributeProperty property) {
            return false;
        }

        public boolean visitToMany(ToManyProperty property) {
            property.addTargetDirectly(source, target);
            return false;
        }

        public boolean visitToOne(ToOneProperty property) {
            property.setTarget(source, target, false);
            return false;
        }
    });
    context.propertyChanged(source, (String) arcId, null, target);
}

Example 29 with ToOneProperty

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

the class CayenneContextQueryAction method invalidateLocally.

private void invalidateLocally(CayenneContextGraphManager graphManager, Iterator<?> it) {
    if (!it.hasNext()) {
        return;
    }
    EntityResolver resolver = actingContext.getEntityResolver();
    while (it.hasNext()) {
        final Persistent object = (Persistent) it.next();
        // present
        if (object.getPersistenceState() == PersistenceState.NEW) {
            continue;
        }
        ObjectId id = object.getObjectId();
        // per CAY-1082 ROP objects (unlike CayenneDataObject) require all
        // relationship faults invalidation.
        ClassDescriptor descriptor = resolver.getClassDescriptor(id.getEntityName());
        PropertyVisitor arcInvalidator = new PropertyVisitor() {

            public boolean visitAttribute(AttributeProperty property) {
                return true;
            }

            public boolean visitToMany(ToManyProperty property) {
                property.invalidate(object);
                return true;
            }

            public boolean visitToOne(ToOneProperty property) {
                property.invalidate(object);
                return true;
            }
        };
        descriptor.visitProperties(arcInvalidator);
        object.setPersistenceState(PersistenceState.HOLLOW);
        // remove cached changes
        graphManager.changeLog.unregisterNode(id);
        graphManager.stateLog.unregisterNode(id);
    }
}