Package org.apache.calcite.jdbc

Class CalcitePrepare.Dummy

java.lang.Object

org.apache.calcite.jdbc.CalcitePrepare.Dummy

Enclosing interface:

CalcitePrepare

public static class CalcitePrepare.Dummy
extends java.lang.Object

Namespace that allows us to define non-abstract methods inside an interface.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	CalcitePrepare.Dummy.TrivialSparkHandler	Implementation of CalcitePrepare.SparkHandler that either does nothing or throws for each method.

Field Summary

Fields

Modifier and Type	Field	Description
private static CalcitePrepare.SparkHandler	sparkHandler

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Dummy()

Method Summary

Modifier and Type	Method	Description
private static CalcitePrepare.SparkHandler	createHandler()
static CalcitePrepare.SparkHandler	getSparkHandler(boolean enable)	Returns a spark handler.
static CalcitePrepare.Context	peek()
static void	pop(CalcitePrepare.Context context)
static void	push(CalcitePrepare.Context context)

Methods inherited from class java.lang.Object

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

Field Detail

sparkHandler

private static CalcitePrepare.SparkHandler sparkHandler

Constructor Detail

Dummy

private Dummy()

Method Detail

getSparkHandler

public static CalcitePrepare.SparkHandler getSparkHandler(boolean enable)

Returns a spark handler. Returns a trivial handler, for which CalcitePrepare.SparkHandler.enabled() returns false, if enable is false or if Spark is not on the class path. Never returns null.

createHandler

private static CalcitePrepare.SparkHandler createHandler()

push

public static void push(CalcitePrepare.Context context)

peek

public static CalcitePrepare.Context peek()

pop

public static void pop(CalcitePrepare.Context context)