checks if we have a database connection concode_field_sep ItemRegistry itemRegistry concode_elem_sep String FIELD_REALNAME concode_elem_sep String FIELD_ITEM concode_elem_sep MongoClient cl concode_elem_sep String collection concode_elem_sep String url concode_elem_sep String FIELD_TIMESTAMP concode_elem_sep String FIELD_VALUE concode_elem_sep String name concode_elem_sep State state concode_elem_sep DBCollection mongoCollection concode_elem_sep String FIELD_ID concode_elem_sep String db concode_elem_sep boolean initialized concode_elem_sep Logger logger concode_elem_sep Date timestamp concode_field_sep String getName concode_elem_sep String getName concode_elem_sep void unsetItemRegistry concode_elem_sep Iterable<HistoricItem> query concode_elem_sep Item getItem concode_elem_sep void store concode_elem_sep void store concode_elem_sep void deactivate concode_elem_sep Object convertValue concode_elem_sep void connectToDatabase concode_elem_sep State getState concode_elem_sep Date getTimestamp concode_elem_sep void activate concode_elem_sep String toString concode_elem_sep void disconnectFromDatabase concode_elem_sep void updated concode_elem_sep void setItemRegistry concode_elem_sep String convertOperator
boolean function ( ) { return cl != null ; }