code: protected synchronized boolean isLoopOnce() {
          final String methodName = "isLoopOnce()";
          if (loopOnce) {
              traceDebug(methodName, "cacheName=" + this.cod.cacheName + " isLoopOnce=" + loopOnce + " explicitBuffer=" + explicitBuffer.size()
                      + " scanBuffer=" + this.scanBuffer.size());
          }
          return this.loopOnce;
      }
docs: Call this method to check the state of "Loop Once".
  
  @return boolean - the state.