org.apache.flink.formats.protobuf.serialize

Interface PbCodegenSerializer

All Known Implementing Classes:

PbCodegenArraySerializer, PbCodegenMapSerializer, PbCodegenRowSerializer, PbCodegenSimpleSerializer

public interface PbCodegenSerializer

PbCodegenSerializer is responsible for converting flink internal data object to protobuf object by codegen process. The codegen procedure could be considered as

 resultVariableCode = codegen(flinkObjectCode) 
 

Method Summary

Modifier and Type	Method and Description
String	codegen(String resultVar, String flinkObjectCode, int indent)

Method Detail

codegen

String codegen(String resultVar,
               String flinkObjectCode,
               int indent)
        throws PbCodegenException

Parameters:

resultVar - the final var name that is calculated by codegen. This var name will be used by outsider codegen environment. resultVariable should be protobuf object

flinkObjectCode - may be a variable or expression. Current codegen environment can use this literal name directly to access the input. flinkObject should be a flink internal object.

Returns:

The java code generated

Throws:

PbCodegenException