Package org.apache.cayenne.reflect

Examples of org.apache.cayenne.reflect.Property


        if (descriptor == null) {
            throw new IllegalStateException("DataObject's entity is unmapped, objectId: "
                    + objectId);
        }

        Property property = descriptor.getProperty(relationshipName);
        if (property instanceof ToManyMapProperty) {
            return ((ToManyMapProperty) property).getMapKey(value);
        }

        throw new IllegalArgumentException("Relationship '"
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        if (descriptor == null) {
            throw new IllegalStateException("DataObject's entity is unmapped, objectId: "
                    + objectId);
        }

        Property property = descriptor.getProperty(relationshipName);
        if (property instanceof ToManyMapProperty) {
            return ((ToManyMapProperty) property).getMapKey(value);
        }

        throw new IllegalArgumentException("Relationship '"
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        // resolve relationship fault
        if (lazyFaulting && property != null) {
            ClassDescriptor classDescriptor = getEntityResolver().getClassDescriptor(
                    object.getObjectId().getEntityName());
            Property propertyDescriptor = classDescriptor.getProperty(property);

            // If we don't have a property descriptor, there's not much we can do.
            // Let the caller know that the specified property could not be found and list
            // all of the properties that could be so the caller knows what can be used.
            if (propertyDescriptor == null) {
                final StringBuilder errorMessage = new StringBuilder();

                errorMessage.append(String.format(
                        "Property '%s' is not declared for entity '%s'.",
                        property,
                        object.getObjectId().getEntityName()));

                errorMessage.append(" Declared properties are: ");

                // Grab each of the declared properties.
                final List<String> properties = new ArrayList<String>();
                classDescriptor.visitProperties(new PropertyVisitor() {

                    public boolean visitAttribute(final AttributeProperty property) {
                        properties.add(property.getName());

                        return true;
                    }

                    public boolean visitToOne(final ToOneProperty property) {
                        properties.add(property.getName());

                        return true;
                    }

                    public boolean visitToMany(final ToManyProperty property) {
                        properties.add(property.getName());

                        return true;
                    }
                });

                // Now add the declared property names to the error message.
                boolean first = true;
                for (String declaredProperty : properties) {
                    if (first) {
                        errorMessage.append(String.format("'%s'", declaredProperty));

                        first = false;
                    }
                    else {
                        errorMessage.append(String.format(", '%s'", declaredProperty));
                    }
                }

                errorMessage.append(".");

                throw new CayenneRuntimeException(errorMessage.toString());
            }

            // this should trigger fault resolving
            propertyDescriptor.readProperty(object);
        }
    }
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                for (int i = 1; i < path.getChildrenCount(); i++) {

                    String pathChunk = path.getChild(i).getText();
                    buffer.append('.').append(pathChunk);

                    Property property = descriptor.getProperty(pathChunk);
                    if (property instanceof ArcProperty) {
                        ObjRelationship incoming = ((ArcProperty) property)
                                .getRelationship();
                        descriptor = ((ArcProperty) property).getTargetDescriptor();
                        String pathString = buffer.substring(0, buffer.length());
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            return;
        }

        ClassDescriptor descriptor = context.getEntityResolver().getClassDescriptor(
                ((ObjectId) nodeId).getEntityName());
        Property property = descriptor.getProperty(arcId.toString());

        setExternalChange(Boolean.TRUE);
        try {
            property.visit(new PropertyVisitor() {

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

                public boolean visitToMany(ToManyProperty property) {
                    // connect reverse arc if the relationship is marked as "runtime"
                    ArcProperty reverseArc = property.getComplimentaryReverseArc();
                    boolean autoConnectReverse = reverseArc != null
                            && reverseArc.getRelationship().isRuntime();

                    Persistent target = findObject(targetNodeId);

                    if (target == null) {

                        // this is usually the case when a NEW object was deleted and then
                        // its
                        // relationships were manipulated; so try to locate the object in
                        // the
                        // collection ...
                        // the performance of this is rather dubious of course...
                        target = findObjectInCollection(targetNodeId, property
                                .readProperty(source));
                    }

                    if (target == null) {
                        // ignore?
                    }
                    else {
                        property.removeTarget(source, target, autoConnectReverse);
                    }

                    return false;
                }

                public boolean visitToOne(ToOneProperty property) {
                    property.setTarget(source, null, false);
                    return false;
                }
            });
        }
        finally {
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            ArcOperation arcDiff = (ArcOperation) diff;
            Object targetId = arcDiff.getTargetNodeId();
            String arcId = arcDiff.getArcId().toString();

            Property property = getClassDescriptor().getProperty(arcId);

            // note that some collection properties implement 'SingleObjectArcProperty',
            // so we cant't do 'instanceof SingleObjectArcProperty'
            // TODO: andrus, 3.22.2006 - should we consider this a bug?

            if (property instanceof ToManyProperty) {

                // record flattened op changes
                ObjEntity entity = object
                        .getObjectContext()
                        .getEntityResolver()
                        .getObjEntity(entityName);

                ObjRelationship relationship = (ObjRelationship) entity
                        .getRelationship(property.getName());
                if (relationship.isFlattened()) {

                    if (flatIds == null) {
                        flatIds = new HashMap<ArcOperation, ArcOperation>();
                    }
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        // translate ObjectContext generic property change callback to GraphManager terms
        // (simple properties vs. relationships)

        ClassDescriptor descriptor = context.getEntityResolver().getClassDescriptor(
                object.getObjectId().getEntityName());
        Property property = descriptor.getProperty(propertyName);

        if (property instanceof ArcProperty) {
            handleArcPropertyChange(object, (ArcProperty) property, oldValue, newValue);
        }
        else {
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                return true;
            }

            public boolean visitAttribute(AttributeProperty property) {
                Property targetProperty = targetDescriptor
                        .getProperty(property.getName());
                targetProperty.writeProperty(target, null, property.readProperty(source));
                return true;
            }
        });

        return target;
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                if (descriptor == null) {
                    throw new EJBQLException("Unmapped id variable: " + id);
                }
                String pathChunk = translator.lastPathComponent;

                Property property = descriptor.getProperty(pathChunk);
                if (property instanceof AttributeProperty) {
                    String atrType = ((AttributeProperty) property)
                            .getAttribute()
                            .getType();
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    public void testCopyObjectProperties() {
        PersistentDescriptor d1 = new PersistentDescriptor();

        FieldAccessor accessor = new FieldAccessor(TestBean.class, "string", String.class);
        Property property = new SimpleAttributeProperty(d1, accessor, null);

        d1.declaredProperties.put(property.getName(), property);

        TestBean from = new TestBean();
        from.setString("123");

        TestBean to = new TestBean();
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