Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/3409#discussion_r107347170
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/api/java/BatchTableEnvironment.scala
---
@@ -178,4 +178,32 @@ class BatchTableEnvironment(
registerTableFunctionInternal[T](name, tf)
}
+
+ /**
+ * Scans a table from registered temporary tables and registered
catalogs.
+ *
+ * The table to scan must be registered in the TableEnvironment or
+ * must exist in registered catalog in the TableEnvironment.
+ *
+ * Example:
+ *
+ * to scan a registered temporary table
+ * {{{
+ * val tab: Table = tableEnv.scan("tableName")
+ * }}}
+ *
+ * to scan a table from a registered catalog
+ * {{{
+ * val tab: Table = tableEnv.scan("catalogName.dbName.tableName")
+ * }}}
+ *
+ * @param tablePath The path of the table to scan.
+ * @throws TableException if no table is found using the given table
path.
+ * @return The resulting [[Table]].
+ */
+ @throws[TableException]
+ def scan(tablePath: String): Table = {
--- End diff --
Alright, I found a solution to the problem.
We can actually define a varargs method in Scala that can be used from Java
with varargs.
```
import _root_.scala.annotation.varargs
@varargs def scan(tablePath: String*): Table = {
scanInternal(tablePath.toArray)
}
```
This way we do not need to parse the string and have unified usage in Java
and Scala.
All TableEnvironments will only have a single varargs method.
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