gets the value of the concurrency property . concode_field_sep String execution concode_elem_sep String throttle concode_elem_sep String timeout concode_elem_sep String concurrency concode_field_sep void setTimeout concode_elem_sep void setThrottle concode_elem_sep String getExecution concode_elem_sep String getThrottle concode_elem_sep String getTimeout concode_elem_sep void setConcurrency concode_elem_sep void setExecution
String function ( ) { return concurrency ; }