PyStringExpr getOutputAsString ( ) { Preconditions . checkState ( getOutputVarName ( ) != null ) ; initOutputVarIfNecessary ( ) ; return new PyListExpr ( getOutputVarName ( ) , Integer . MAX_VALUE ) . toPyString ( ) ; }
Provide the output object as a string . Since we store all data in the output variables as a list for concatenation performance this step does the joining to convert the output into a String .