private DescriptorProtos . DescriptorProto . Builder mapDescriptorProtoBuilder ( Field field , String typeName ) throws DescriptorValidationException { DescriptorProtos . DescriptorProto . Builder mapBuilder = DescriptorProtos . DescriptorProto . newBuilder ( ) . setName ( typeName ) ; Field keyField = field . getMapKeyField ( ) ; Field valueField = field . getMapValueField ( ) ; DescriptorProtos . FieldDescriptorProto . Builder keyBuilder = mapKeyProtoBuilder ( ) ; DescriptorProtos . FieldDescriptorProto . Builder valueBuilder = mapValueProtoBuilder ( ) ; setBuilderTypeFromField ( keyField , keyBuilder ) ; setBuilderTypeFromField ( valueField , valueBuilder ) ; mapBuilder . addField ( keyBuilder . build ( ) ) ; mapBuilder . addField ( valueBuilder . build ( ) ) ; return mapBuilder ; }
Generate a DescriptorProto . Builder for the Message type that will be used to represent the entries of the input Map field .