UserCodeWrapper < ? > function ( ) { return null ; }
gets the user code wrapper . in the case of a pact , that object will be the stub with the user function , in the case of an input or output format , it will be the format object . concode_field_sep int parallelism concode_elem_sep OperatorInformation<OUT> operatorInfo concode_elem_sep CompilerHints compilerHints concode_elem_sep String name concode_elem_sep Configuration parameters concode_field_sep void setName concode_elem_sep String getName concode_elem_sep int getDegreeOfParallelism concode_elem_sep int getParallelism concode_elem_sep Configuration getParameters concode_elem_sep void setParameter concode_elem_sep void setParameter concode_elem_sep void setParameter concode_elem_sep Operator<T> createUnionCascade concode_elem_sep Operator<T> createUnionCascade concode_elem_sep Operator<T> createUnionCascade concode_elem_sep OperatorInformation<OUT> getOperatorInfo concode_elem_sep String toString concode_elem_sep void setDegreeOfParallelism concode_elem_sep void setParallelism concode_elem_sep CompilerHints getCompilerHints