Hi Pawan, If you want to read a file, you might want to extend the FileInputFormat class. It has already a lot of file-related functionality implemented. OT is the type of the records produced by the InputFormat. For example Tuple2<String, Integer> if the input format produce a tuple with two fields of String and Integer types.
Best, Fabian 2017-01-18 4:52 GMT+01:00 Pawan Manishka Gunarathna < pawan.manis...@gmail.com>: > Hi, > Yeah I also wrote in the way you have written...... > > public class ReadFromFile implements InputFormat<OT,T extends InputSplit>{ > } > > Is that a problem with that declaration or dependencies ? > > Thanks, > Pawan > > On Tue, Jan 17, 2017 at 7:56 PM, Chesnay Schepler <ches...@apache.org> > wrote: > > > Hello, > > > > Did you write something like this? > > > > public class MyInputFormat implements InputFormat<OT, T extends > > InputSplit> { > > .... > > } > > > > Regards, > > Chesnay > > > > On 17.01.2017 04:18, Pawan Manishka Gunarathna wrote: > > > >> Hi, > >> > >> I'm currently working on Flink InputFormat Interface implementation. I'm > >> writing a java program to read data from a file using InputputFormat > >> Interface. I used maven project and I have added following dependencies > to > >> the pom.xml. > >> > >> <dependencies> > >> <dependency> > >> <groupId>org.apache.flink</groupId> > >> <artifactId>flink-core</artifactId> > >> <version>1.1.4</version> > >> </dependency> > >> > >> <dependency> > >> <groupId>org.apache.flink</groupId> > >> <artifactId>flink-clients_2.11</artifactId> > >> <version>1.1.4</version> > >> </dependency> > >> > >> <dependency> > >> <groupId>org.apache.flink</groupId> > >> <artifactId>flink-java</artifactId> > >> <version>1.1.4</version> > >> </dependency> > >> > >> </dependencies> > >> > >> > >> I have a java class that implements InputFormat. It works with > >> *InputFormat. > >> *But it didn't allow to used *InputFormat<OT, T extends InputSplit>. > *That > >> OT field didn't recognized. > >> > >> I need a any kind of help to solve this problem. > >> > >> Thanks, > >> Pawan > >> > >> > > > > > -- > > *Pawan Gunaratne* > *Mob: +94 770373556* >