Component cannot input complex Record

hzhen — Fri, 02 Jan 2026 14:45:42 GMT

Thanks.

A complex Talend Record (for example, the Record is stored in the A field of InputRecord) is no longer recorded when input as Input of the component developed by TCK (it became "Null", Talend The components provided by are fine).

For example, use talend component kit to create a simple Input Component (ObjectInput).

sources :

--------------------------------------------------------------------------------

@Documentation(

"TODO fill the documentation for this source"

)

public

class

ObjectInputSource

implements

Serializable {

private

final

ObjectInputMapperConfiguration configuration;

private

final

Demo3ComponentService service;

private

int

index =

;

public

ObjectInputSource(@Option(

"configuration"

)

final

ObjectInputMapperConfiguration configuration,

final

Demo3ComponentService service) {

this

.configuration = configuration;

this

.service = service;

}

@PostConstruct

public

void

init() {

index =

;

}

@Producer

public

ObjectInputRecord next() {

(index >

) {

return

null

;

}

index++;

ObjectInputRecord obj =

new

ObjectInputRecord();

obj.setAge(

);

obj.setName(

"ObjectInputRecord"

);

obj.setMarried(

true

);

ObjConfiguration sub =

new

ObjConfiguration();

sub.setObjName(

"sub name"

);

obj.setObj(sub);

System.out.println(obj);

return

obj;

}

@PreDestroy

public

void

release() {

}

--------------------------------------------------------------------------------

Among them, the definition of ObjectInputRecord is as follows:

--------------------------------------------------------------------------------

// this is the pojo which will be used to represent your data

public

class

ObjectInputRecord

implements

Serializable {

private

static

final

long

serialVersionUID =

;

private

String name;

private

int

age;

private

ObjConfiguration obj;

private

boolean

married;

}

public

class

ObjConfiguration

implements

Serializable {

private

static

final

long

serialVersionUID =

;

private

String objName;

}

--------------------------------------------------------------------------------

Read the same content with different Components (Custom Component and the original Component of TOS DI) and output the information using System.out.println.

the original

Component

===============================================

com.dhc.wuxd.talend.demo.demo3.source.ObjectInputRecord@5ca17ab0

in tJavaRow: row1.obj = {objName=sub name}

in tJavaRow: row1.name = ObjectInputRecord

in tJavaRow: row1.age = 35.0

in tJavaRow: row1.married = true

[statistics] disconnected

===============================================

>Custom

Component

===============================================

Starting job objRecord at 16:45 27/01/2021.

[statistics] connecting to socket on port 3869

[statistics] connected

com.dhc.wuxd.talend.demo.demo3.source.ObjectInputRecord@51650883

{"age":35.0,"married":true,"name":"ObjectInputRecord"}

obj --> null

name --> ObjectInputRecord

age --> 35

getMarried --> true

[statistics] disconnected

Job objRecord ended at 16:45 27/01/2021. [Exit code = 0]

===============================================

I can read name \\ age \\ married, but I can't read ObjConfiguration obj.

Does anyone know how to achieve？Thank you.

Re: Component cannot input complex Record

undx — Thu, 11 Feb 2021 15:53:32 GMT

Hi @han zhen ,

This is a bug that has been fixed and will be available on release 1.30.0.

best regards

topic Re: Component cannot input complex Record in Talend Studio

Component cannot input complex Record

Re: Component cannot input complex Record