org.apache.drill.exec.expr.fn

Class FunctionInitializer

java.lang.Object

org.apache.drill.exec.expr.fn.FunctionInitializer

public class FunctionInitializer
extends Object

To avoid the cost of initializing all functions up front, this class contains all informations required to initializing a function when it is used.

Constructor Summary

Constructors

Constructor and Description
FunctionInitializer(String className)

Method Summary

Methods

Modifier and Type	Method and Description
String	getClassName()
List<String>	getImports()
String	getMethod(String methodName)

Methods inherited from class java.lang.Object

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

Constructor Detail

FunctionInitializer

public FunctionInitializer(String className)

Parameters:

className - the fully qualified name of the class implementing the function

Method Detail

getClassName

public String getClassName()

Returns:

the fully qualified name of the class implementing the function

getImports

public List<String> getImports()

Returns:

the imports of this class (for java code gen)

getMethod

public String getMethod(String methodName)

Parameters:

methodName -

Returns:

the content of the method (for java code gen inlining)