question: get the operation to perform on the file . this method will not return null , operation_open is the default . concode_field_sep String OPERATION_PRINT concode_elem_sep COSDictionary params concode_elem_sep String OPERATION_OPEN concode_field_sep String getFilename concode_elem_sep String getExecuteParam concode_elem_sep void setOperation concode_elem_sep String getDirectory concode_elem_sep void setDirectory concode_elem_sep COSBase getCOSObject concode_elem_sep void setExecuteParam concode_elem_sep COSDictionary getCOSDictionary concode_elem_sep void setFilename
target: String function ( ) { return params . getString ( "srini_string" , OPERATION_OPEN ) ; }