An annotation used to specify some swing-related information for the automatically generated
BeanInfo
classes. This annotation is not used if the annotated class has a corresponding user-defined
BeanInfo
class, which does not imply the automatic analysis.
The isContainer
feature attribute
was introduced primarily for the Swing library. All Swing components extend the Container
class by design, so the builder tool assumes that all Swing components are containers. The BeanInfo
classes with the isContainer
attribute allow to directly specify whether a Swing component is a container or not.