public java.lang.String getSpanName() {
    java.lang.Object ref = spanName_;
    if (ref instanceof java.lang.String) {
      return (java.lang.String) ref;
    } else {
      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
      java.lang.String s = bs.toStringUtf8();
      spanName_ = s;
      return s;
    }
  }
public java . lang . String getSpanName ( ) { java . lang . Object ref = spanName_ ; if ( ref instanceof java . lang . String ) { return ( java . lang . String ) ref ; } else { com . google . protobuf . ByteString bs = ( com . google . protobuf . ByteString ) ref ; java . lang . String s = bs . toStringUtf8 ( ) ; spanName_ = s ; return s ; } }
<pre>
The resource name of the span in the following format:
projects/[PROJECT_ID]/traces/[TRACE_ID]/spans/[SPAN_ID]
[TRACE_ID] is a unique identifier for a trace within a project;
it is a 32-character hexadecimal encoding of a 16-byte array.
[SPAN_ID] is a unique identifier for a span within a trace; it
is a 16-character hexadecimal encoding of an 8-byte array.
</pre>

<code>string span_name = 1;</code>