Value from subjob

Anonymous — Wed, 12 Jun 2019 02:29:28 GMT

I'm trying to pass/store a value from one subjob to be used in another subjob, and am trying to find the best way.

I tried to implement what is described in the below post (pass a Map to the subjob as a context parameter) but ran into unexpected results.

https://www.talendbyexample.com/talend-returning-values-from-subjobs.html

The issue I run into is in the subjob I'm unable to retrieve the context parameter as a Map. When I check the class of context param it is showing it as java.lang.String instead of java.util.concurrent.ConcurrentHashMap. If I use a ContextDump -> LogRow the output seems to indicate it's a Map

Context Parameter Setup

sharedMap (Object)

ParentJob

tJava

context.sharedMap = new java.util.concurrent.ConcurrentHashMap();

sharedMap.getClass().getName() = java.util.concurrent.ConcurrentHashMap

SubJob

Options

Use independent process
Transmit whole context

sharedMap.getClass().getName() = java.lang.String

ContextDump -> LogRow results indicate the value appears to be a Map

|sharedMap         |{parentJob=parentJob value}                        |

Follow-up questions:

* Why does the Object context param get converted to String when passed to the subjob?

* Is there a different/better way I should be handling what I'm trying to do? I can't store the value in a globalMap because the globalMap only applies to the job being run.

Re: Value from subjob

fdenis — Wed, 12 Jun 2019 09:03:53 GMT

you can use tbufferoutput.

topic Value from subjob in Talend Studio

Value from subjob

Re: Value from subjob