Task $3$

Your application allows you to manage Task and Project

entities.

You have to add missing annotations and code over entity classes

and converters to make it possible to store Task and Project

and their relations in specified tables.

Requirements

Project. updates should be persisted in a table with the

following structure:

Table name: PROJECT$\_$EVENT$\_$UPDATES

Columns:

PROJECT$\_$ID : foreign key;

USER$\_$NAME : value of Itemupdate.user ;

EVENT$\_$DATE: value of Itemupdate. date $.$

Task, watchers should be persisted in a table with the

following structure:

Table name: TODO$\_$WATCHERS :

Columns:

TODO$\_$ID : foreign key;

LOGIN: value of string from the set.Task $3$

NAME: Key trom the Map;

DESCRIPTION: value from the Map $.$

Tables

The following tables should exist after implementation:

PROJECTS with columnS PROJECT$\_$ID$,$ NAME ;

PROJECT$\_$EVENT$\_$UPDATES with columnS PROJECT$\_$ID$,$

USER$\_$NAME, EVENT$\_$DATE ;

TODOS with columns TODO$\_$ID$,$ SUBJECT, DETAILS;

TODO$\_$WATCHERS with columnS TODO$\_$ID$,$ LOGIN ;

TODO$\_$COMMENTS with columns TODO$\_$ID$,$ AUTHOR,

ADD$\_$DATE, COMMENT ;

TODO$\_$UPDATES with columns TODO$\_$ID$,$ AUTHOR,

UPDATE$\_$DATE;

TODO$\_$WATCHERS with columnS TODO$\_$ID$,$ NAME,

DESCRIPTION $.$

Assumptions

Class names and function signatures should not be changed.