topic Re: How to output multiple rows using a tJava/tJavaRow/tJavaFlex component in Open Studio 7.1? in Talend Studio

How to output multiple rows using a tJava/tJavaRow/tJavaFlex component in Open Studio 7.1?

spr654 — Tue, 26 Feb 2019 15:02:22 GMT

Hi,

I am trying to use a java class that works perfectly outside Talend. the class opens a bucket, reads the contents, and sets the output variables.

this is the code that I use in a tJava component, and it only outputs 1 row:

CouchbaseEnvironment env = DefaultCouchbaseEnvironment.builder()
.connectTimeout(10000)
.build();
Cluster cluster = CouchbaseCluster.create(env,"10.0.0.0");
Bucket bucket = cluster.openBucket("myBucket","password");
N1qlQueryResult result = bucket.query(N1qlQuery.simple("SELECT * FROM mybucket" ));
Iterator<N1qlQueryRow> rowIterator = result.rows();

while (rowIterator.hasNext()) {
N1qlQueryRow row = rowIterator.next();
// Return results
String content = row.toString();
JsonObject obj = (JsonObject) row.value().get("mybucket");

String _class = obj.get("_class").toString();
if (_class.equalsIgnoreCase("record.type.one") ){
//transaction id
String createdByTransactionId = obj.get("createdByTransactionId").toString();

//addresses is an optional field
JsonArray address_obj = null;
if (obj.get("addresses") != null) {
address_obj = (JsonArray) obj.get("addresses");
}}
row1.createdByTransactionId = createdByTransactionId;

}}
bucket.close();
env.shutdown();

When I use the same code in a tJavaRow, in output I get 0 rows in output.

When I use a tJavaFlex component, I get 0 rows in output.

What am I doing wrong?

Any help is welcome.

Re: How to output multiple rows using a tJava/tJavaRow/tJavaFlex component in Open Studio 7.1?

akumar2301 — Tue, 26 Feb 2019 15:18:07 GMT

you need to use tjavaflex , Ideally

Begin part should have

while (rowIterator.hasNext()) {

Main Part

N1qlQueryRow row = rowIterator.next();
// Return results
String content = row.toString();
JsonObject obj = (JsonObject) row.value().get("mybucket");

String _class = obj.get("_class").toString();
if (_class.equalsIgnoreCase("record.type.one") ){
//transaction id
String createdByTransactionId = obj.get("createdByTransactionId").toString();

}

End Part

}
bucket.close();
env.shutdown();

Please try and let us know if doesnot work.

Re: How to output multiple rows using a tJava/tJavaRow/tJavaFlex component in Open Studio 7.1?

spr654 — Tue, 26 Feb 2019 15:51:59 GMT

Thank you very much, Akumar.

I didn't get right the main part (I included the while there).

Now works perfectly.