public DBDataCollector(){
  super();
  propertiesFileName=DEFAULT_CONFIG_FILE_NAME;
  final String userDefinedPropertiesFileName=System.getProperty(CONFIG_PROPERTY_FILE_NAME);
  if (userDefinedPropertiesFileName != null) {
    propertiesFileName=userDefinedPropertiesFileName;
  }
}

public DBDataCollector ( ) { super ( ) ; propertiesFileName = DEFAULT_CONFIG_FILE_NAME ; final String userDefinedPropertiesFileName = System . getProperty ( CONFIG_PROPERTY_FILE_NAME ) ; if ( userDefinedPropertiesFileName != null ) { propertiesFileName = userDefinedPropertiesFileName ; } }
instantiates a default object .
