fredji97

SAMZA-1559 moving hello-samza repo to samza repo and put in samza-samples directory

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Tested and jobs can be deployed in the new place. After this is committed, we will do the following two in order: 1. adjust the documentation to use the sample...

SAMZA-1542 refactor config classes in samza-core java to hide non-necessary interfaces

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With previous inheritance, it exposed everything from Config class, which is a bad practice and is error prone. We are refactoring it to use composition over inheritance make it more...

./gradlew clean check successfully. The reason for doing this is described in https://issues.apache.org/jira/browse/SAMZA-1160. I am going to migrate for each directory and this PR is for samza-yarn. Besides the refactoring,...