clarkwtc commented on PR #19071:
URL: https://github.com/apache/kafka/pull/19071#issuecomment-2695069201
@frankvicky
Sure, using declaring `KTable<String, String>` during the building works as
well, Previously, I wanted to resolve declaring `KTableImpl<String, String,
String>` causing the unchecked cast by declaring `var`.
I think using `var` looks cleaner than explicitly declaring the variable
type in the following example.
```
@Test
public void
shouldNotEnableSendingOldValuesIfNotMaterializedAlreadyAndNotForcedToMaterialize()
{
final StreamsBuilder builder = new StreamsBuilder();
final var kTable = assertInstanceOf(KTableImpl.class,
builder.table("topic1", consumed));
kTable.enableSendingOldValues(false);
assertFalse(kTable.sendingOldValueEnabled());
}
```
In this case, I can’t use the KTable<String, String> interface; I must
create a KTableImpl instance here.
```
@Test
public void
shouldNotEnableSendingOldValuesIfNotMaterializedAlreadyAndNotForcedToMaterialize()
{
final StreamsBuilder builder = new StreamsBuilder();
if (builder.table("topic1", consumed) instanceof KTableImpl<String,
String, String> kTable) {
kTable.enableSendingOldValues(false);
assertFalse(kTable.sendingOldValueEnabled());
}
}
```
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