org.apache.drill.exec.compile

Class CodeCompiler

java.lang.Object

org.apache.drill.exec.compile.CodeCompiler

public class CodeCompiler
extends Object

Constructor Summary

Constructors

Constructor and Description
CodeCompiler(DrillConfig config, OptionManager optionManager)

Method Summary

Methods

Modifier and Type	Method and Description
void	flushCache() Flush the compiled classes from the cache.
<T> T	getImplementationClass(CodeGenerator<?> cg)
<T> List<T>	getImplementationClass(CodeGenerator<?> cg, int instanceNumber)

Methods inherited from class java.lang.Object

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

Constructor Detail

CodeCompiler

public CodeCompiler(DrillConfig config,
            OptionManager optionManager)

Method Detail

getImplementationClass

public <T> T getImplementationClass(CodeGenerator<?> cg)
                         throws ClassTransformationException,
                                IOException

Throws:

ClassTransformationException

IOException

getImplementationClass

public <T> List<T> getImplementationClass(CodeGenerator<?> cg,
                                 int instanceNumber)
                               throws ClassTransformationException,
                                      IOException

Throws:

ClassTransformationException

IOException

flushCache

public void flushCache()

Flush the compiled classes from the cache.

The cache has DrillbitContext lifetime, so the only way items go out of it now is by being aged out because of the maximum cache size.

The intent of flushCache() is to make it possible to flush the cache for testing purposes, although this could be used by users in case issues arise. If that happens, remove the visible for testing annotation.