#2270: Adding comments

src/main/java/stirling/software/SPDF/config/security/database/DatabaseConfig.java

@@ -29,6 +29,11 @@ public DatabaseConfig(@Autowired ApplicationProperties applicationProperties) {
         this.applicationProperties = applicationProperties;
     }
 
+    /**
+     * Creates the <code>DataSource</code> for the connection to the DB. If the active profile is set to <em>'default'</em> it will use
+     * local configiration, namely using localhost as the host for the connection. If set to <em>'docker'</em> it will use
+     * the Dokcer server configuration.
+     * */
     @Bean
     public DataSource dataSource() {
         ApplicationProperties.System system = applicationProperties.getSystem();
@@ -57,6 +62,9 @@ public Connection connection() throws SQLException {
         return dataSource().getConnection();
     }
 
+    /**
+     * Changes the DB connection URL based on the active profile selected (<em>'default'</em> | <em>'docker'</em>).
+     * */
     private String getDefaultProfileUrl(ApplicationProperties.Datasource datasource) {
         String localUrl =
                 datasource
@@ -69,6 +77,9 @@ private String getDefaultProfileUrl(ApplicationProperties.Datasource datasource)
         return localUrl;
     }
 
+    /**
+     * Selects the DB driver based on the <code>stirling.software.SPDF.model.Driver</code> chosen.
+     * */
     private String getDriverClassName(ApplicationProperties.Driver driverName) {
         switch (driverName) {
             case ORACLE -> {