Either the builder com.ptc.jca.mvc.builders.AbstractAttributesComponentBuilder or the builder com.ptc.mvc.components.AbstractComponentBuilder can be extended for creating a panel that is not layout-based.

The AbstractAttributesComponentBuilder sets the ComponentMode and datum object as described in the class javadoc. These configurations are not overridable. If you want your panel to be configured as described, you can extend AbstractAttributesComponentBuilder for convenience. Otherwise, you should extend AbstractComponentBuilder.