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

Example 16 with PropertyDescriptor

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

the class DataContextMergeHandler method arcChanged.

// works the same for add and remove as long as we don't get too smart per TODO below.
private void arcChanged(Object nodeId, Object targetNodeId, Object arcId) {
    final Persistent source = (Persistent) context.getGraphManager().getNode(nodeId);
    if (source != null && source.getPersistenceState() != PersistenceState.HOLLOW) {
        final int state = source.getPersistenceState();
        PropertyDescriptor p = propertyForId(nodeId, arcId.toString());
        p.visit(new PropertyVisitor() {

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

            public boolean visitToMany(ToManyProperty property) {
                if (state == PersistenceState.COMMITTED) {
                    property.invalidate(source);
                }
                return false;
            }

            public boolean visitToOne(ToOneProperty property) {
                if (state == PersistenceState.COMMITTED) {
                    property.invalidate(source);
                }
                // of dirty objects. See DataRowUtils for details.
                return false;
            }
        });
    }
}