Ok, the problem is that you need to create an ObjectInspector that specifies the types of the columns. With a generic record, the reflection-based ObjectInspector doesn't have enough information.
Unfortunately, it is kind of ugly, because there is a lot of boilerplate code dealing with ObjectInspectors. The following code works by building an ObjectInspector dynamically: https://gist.github.com/omalley/ccabae7cccac28f64812 On the positive side, we've been working on updating the API as part of separating ORC out to a separate project. In Hive 2.0 it should look like the much simpler: https://gist.github.com/omalley/7a53cb3ae91fa4c22023 .. Owen On Mon, Nov 23, 2015 at 7:34 AM, Ravi Tatapudi <[email protected]> wrote: > Hello, > > I am Ravi Tatapudi, from IBM-India. I am working on a simple tool, that > writes data to ORC-file. I am new to "ORC/hive world" & I have prepared my > test-application, primarily based on the example-code at: > *https://github.com/cloudera/hive/blob/cdh5.4.0-release/ql/src/test/org/apache/hadoop/hive/ql/io/orc/TestOrcFile.java#L487-L508* > <https://github.com/cloudera/hive/blob/cdh5.4.0-release/ql/src/test/org/apache/hadoop/hive/ql/io/orc/TestOrcFile.java#L487-L508> > > I see that, I am able to write the data successfully to ORC-file, when the > column-definition is hard-coded in the class (orcw.java.sample1). However, > when I defined an array of obejcts & assign the values at run-time > (orcw.java.sample2), I see that, data is not written to the ORC-file. > > Pl. find attached sample-programs: > > > > Could you please see the same & provide your inputs on why > "orcw.java.sample2" is not writing data ? > > Thanks, > Ravi >
