org.apache.calcite.plan

Class Contexts.EmptyContext

java.lang.Object

org.apache.calcite.plan.Contexts.EmptyContext

All Implemented Interfaces:

Context, Wrapper

Enclosing class:

Contexts

static class Contexts.EmptyContext
extends Object
implements Context

Empty context.

Constructor Summary

Constructors

Constructor and Description
EmptyContext()

Method Summary

Modifier and Type	Method and Description
<T> T	unwrap(Class<T> clazz) Finds an instance of an interface implemented by this object, or returns null if this object does not support that interface.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

EmptyContext

EmptyContext()

Method Detail

unwrap

public <T> T unwrap(Class<T> clazz)

Description copied from interface: Wrapper

Finds an instance of an interface implemented by this object, or returns null if this object does not support that interface.

Specified by:

unwrap in interface Wrapper