Github user rmetzger commented on the pull request:
https://github.com/apache/flink/pull/1097#issuecomment-158765143
I've tested the PR again.
I found a minor issue with the alternative arguments.
input: `--input abc --p 12`,
code:
```java
RequiredParameters rq = new RequiredParameters();
rq.add("input");
rq.add(new
Option("parallelism").alt("p").defaultValue("1").type(OptionType.INTEGER));
ParameterTool pt = ParameterTool.fromArgs(args);
rq.applyTo(pt);
String in = pt.get("input");
System.out.println("In = "+in + " parallelism =
"+pt.getInt("parallelism") + " p="+pt.getInt("p"));
System.exit(0);
```
error
```
Exception in thread "main" java.lang.RuntimeException: No data for required
key 'p'
at
org.apache.flink.api.java.utils.ParameterTool.getRequired(ParameterTool.java:236)
at
org.apache.flink.api.java.utils.ParameterTool.getInt(ParameterTool.java:272)
at
org.apache.flink.examples.java.wordcount.WordCount.main(WordCount.java:69)
```
I think we need to set the (default) value for the long and the short
variant.
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