Components Life Cycle 

The life cycle of the pluggable components defines the following states:

·        Missing – the component is not part of the system. That is, it was not deployed successfully and component classes are not available.

·        Deployed – the component is successfully deployed. It is considered part of the system.

·        Resolved – the component is part of the system and the system is able to locate all the classes that the component needs (including classes of referenced components). That is the prerequisite for the component to be loaded.

·        Not resolved – the component is part of the system but was not resolved successfully.

·        Loaded – the system has created a class loader for the component and it has loaded all necessary classes.

·        Active – this state has different meaning for each component type:

¡        Interface – active means that there is a service in active state that implements the interface.

¡        Library – active state is the same as loaded state.

¡        Service – active state means that the service is started (start method is successfully called) and the runtime objects it provides are available.

·        Not Active – the component is loaded but cannot be started.

For more information about changing the states, see Changing Components States.