How to map abstract class or interface as record or segment

[Giulio Buz]

Hi Everyone!

How to use BeanIO annotations to define a segment of an interface? In my example of BeanWriter, I can only obtain the lineResponse with only @Field information, @Segment is not visible.

ParserWriter result:

2021051211362850OK Tutto bene

Desidered result of 1 line:

2021051211362850EPPDNY81 D91138414510 20210512 F OK Tutto bene

Response.class that contains list of LineResponse.class

@Data

@NoArgsConstructor

@Group(minOccurs=0, maxOccurs= -1, type = Response.class)

public class Response {

@Record(minOccurs=1, collection = List.class, name="responseLineList", type=LineResponse.class)

List<LineResponse> responseLines;

}

In the following class LineResponse.class, it is present a @Segment with an interface.

@Data

@NoArgsConstructor

@Record

public class LineResponse implements Serializable {

@Field(ordinal = 1, required = true, length=16, format = "yyyyMMddhhmmssSS")

Date elaboratedOn;

@Segment(ordinal =2, name="requestLine", minOccurs = 1, maxOccurs = 1)

RequestLine line;

@Field(ordinal = 3, required = true, length=9)

String errorCode;

@Field(ordinal = 4, length=36)

String errorMessage;

}

Code of interface:

public interface RequestLine {}

Code of concrete TestLine class:

@Data

@NoArgsConstructor

@Record

public class TestLine implements RequestLine {

@Field(required = true, length=4, maxLength=4)

private String recordType;

@Field(required = true, length=1, maxLength=1)

private String messageKO;

@Field(required = true, length=1, maxLength=1)

private String messageOK;

@Field(required = true, length=1, maxLength=1)

private String divisionCode;

@Field(required = true, length=13, maxLength=13)

private Integer progressive;

@Field(required = true, length=1, maxLength=1, defaultValue = "D")

private String prefixItemCode;

@Field(required = true, length=9, maxLength=9)

private String itemCode;

}

Code of concrete TestLineB class:

@Data

@NoArgsConstructor

@Record

public class TestLineB implements RequestLine {

@Field(required = true, length=9, maxLength=9)

private String itemCode;

@Field(required = true, length=7, maxLength=7)

private BigDecimal quantity;

@Field(required = false, length=1, maxLength=1)

private String cancellation;

@Field(required = true, length=3, maxLength=3)

private String productionLine;

}

This is the code of my test with StreamFactory

// Filling mock Response with lines

LineResponse lineResponse = new LineResponse();

lineResponse .setElaboratedOn(new Date());

lineResponse .setLine(testLine);

lineResponse .setErrorCode("OK");

lineResponse .setErrorMessage("Tutto bene");

List<LineResponse> lineResponseList = new ArrayList<>();

lineResponseList .add(lineResponse );

Response response = new Response();

response.setResponseLine(lineResponseList);

Writer writer = new StringWriter();

String writerName = "ResponseFile";

// create a StreamFactory

StreamFactory factory = StreamFactory.newInstance();

factory.define( new StreamBuilder(writerName)

          .writeOnly()

          .format("fixedlength")

          .parser(new FixedLengthParserBuilder())

          .addGroup(Response.class) );

BeanWriter out = factory.createWriter(writerName, writer);

// JAVA to Writer

out.write(response);

Thanks for help