Package org.apache.calcite.plan

Class Contexts.EmptyContext

  • All Implemented Interfaces:
    Context, Wrapper
    Enclosing class:
    Contexts
    static class Contexts.EmptyContext
extends java.lang.Object
implements Context
    Empty context.

    • Constructor Summary

      Constructors 
      Constructor Description
      EmptyContext()  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      <T> T unwrap​(java.lang.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​(java.lang.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