code: public int prepare(final Xid xid) throws XAException {
  
          final String methodName = "prepare";
          if (TraceComponent.isAnyTracingEnabled() && TRACE.isEntryEnabled()) {
              SibTr.entry(this, TRACE, methodName, xid);
          }
  
          final int result = _siXaResource.prepare(xid);
  
          if (TraceComponent.isAnyTracingEnabled() && TRACE.isEntryEnabled()) {
              SibTr.exit(this, TRACE, methodName, result);
          }
          return result;
  
      }
docs: /*
  (non-Javadoc)
  
  @see javax.transaction.xa.XAResource#prepare(javax.transaction.xa.Xid)