CalcitePrepare.Dummy (Calcite Core 1.16.0 API)

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

Fields
Modifier and Type	Field and Description
`private static CalcitePrepare.SparkHandler`	`sparkHandler`

Constructors
Modifier	Constructor and Description
`private`	`Dummy()`

All Methods Static Methods Concrete Methods
Modifier and Type	Method and 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)`

private static CalcitePrepare.SparkHandler sparkHandler

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.

private static CalcitePrepare.SparkHandler createHandler()

public static void push(CalcitePrepare.Context context)

public static CalcitePrepare.Context peek()

public static void pop(CalcitePrepare.Context context)

Class CalcitePrepare.Dummy