Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/2094#discussion_r75826929
--- Diff:
flink-core/src/main/java/org/apache/flink/api/common/typeinfo/BasicTypeInfo.java
---
@@ -171,6 +172,23 @@ public boolean isKeyType() {
}
}
+ @Override
+ @PublicEvolving
+ @SuppressWarnings("unchecked")
+ public <F> FieldAccessor<T, F> getFieldAccessor(int pos,
ExecutionConfig config) {
+ if(pos != 0) {
+ throw new InvalidFieldReferenceException("Not the 0th
field selected for a basic type.");
+ }
+ return (FieldAccessor<T, F>) new
FieldAccessor.SimpleFieldAccessor<T>(this);
+ }
+
+ @Override
+ @PublicEvolving
+ public <F> FieldAccessor<T, F> getFieldAccessor(String field,
ExecutionConfig config) {
+ throw new InvalidFieldReferenceException("Field expressions are
not supported on basic types."
--- End diff --
What about using `*` or also `0` here and get rid of the exception?
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