code: public void setDbProperty(String key, String value) {
  
          // extract the database key out of the entire key
          String databaseKey = key.substring(0, key.indexOf('.'));
          Properties databaseProperties = getDatabaseProperties().get(databaseKey);
          databaseProperties.put(key, value);
      }
docs: This method sets the value for a given key in the database properties.<p>
  
  @param key The key of the property
  @param value The value of the property