org.apache.flink.table.runtime.generated

Class CompileUtils

java.lang.Object

org.apache.flink.table.runtime.generated.CompileUtils

public final class CompileUtils
extends Object

Utilities to compile a generated code to a Class.

Constructor Summary

Constructors

Constructor and Description
CompileUtils()

Method Summary

Modifier and Type	Method and Description
static void	cleanUp() Triggers internal garbage collection of expired cache entries.
static <T> Class<T>	compile(ClassLoader cl, String name, String code) Compiles a generated code to a Class.
static org.codehaus.janino.ExpressionEvaluator	compileExpression(String code, List<String> argumentNames, List<Class<?>> argumentClasses, Class<?> returnClass) Compiles an expression code to a janino ExpressionEvaluator.

Methods inherited from class java.lang.Object

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

Constructor Detail

CompileUtils

public CompileUtils()

Method Detail

cleanUp

public static void cleanUp()

Triggers internal garbage collection of expired cache entries.

compile

public static <T> Class<T> compile(ClassLoader cl,
                                   String name,
                                   String code)

Compiles a generated code to a Class.

Type Parameters:

T - the class type

Parameters:

cl - the ClassLoader used to load the class

name - the class name

code - the generated code

Returns:

the compiled class

compileExpression

public static org.codehaus.janino.ExpressionEvaluator compileExpression(String code,
                                                                        List<String> argumentNames,
                                                                        List<Class<?>> argumentClasses,
                                                                        Class<?> returnClass)

Compiles an expression code to a janino ExpressionEvaluator.

Parameters:

code - the expression code

argumentNames - the expression argument names

argumentClasses - the expression argument classes

returnClass - the return type of the expression

Returns:

the compiled class