```
public final class ReactiveQueryExecutorLookup
extends java.lang.Object
```
This is a dirty trick to mitigate the performance impact of JDK-8180450; hopefully temporary but we have no indication about a possible fix at the moment. The gist is that we need to avoid repeatedly checking for ReactiveSessionImpl to implement certain interfaces; we frequently need to cast the current {@see SharedSessionContractImplementor} to {@see ReactiveQueryExecutor}: let's take advantage of the fact that it's almost certainly going to be of a known concrete type, specifically a {@see ReactiveSessionImpl}.

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static ReactiveQueryProducer`	`extract(org.hibernate.engine.spi.SharedSessionContractImplementor session)`	Extracts the ReactiveQueryExecutor from a Session.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail
- ReactiveQueryExecutorLookup
```
public ReactiveQueryExecutorLookup()
```

public static ReactiveQueryProducer extract(org.hibernate.engine.spi.SharedSessionContractImplementor session)

Extracts the ReactiveQueryExecutor from a Session.

Class ReactiveQueryExecutorLookup