org.kie.workbench.common.services.backend.builder.core

Class LRUModuleDependenciesClassLoaderCache

java.lang.Object

org.guvnor.common.services.backend.cache.LRUCache<KieModule,ClassLoader>

org.kie.workbench.common.services.backend.builder.core.LRUModuleDependenciesClassLoaderCache

All Implemented Interfaces:

org.guvnor.common.services.backend.cache.Cache<KieModule,ClassLoader>

@ApplicationScoped
 @Named(value="LRUModuleDependenciesClassLoaderCache")
public class LRUModuleDependenciesClassLoaderCache
extends org.guvnor.common.services.backend.cache.LRUCache<KieModule,ClassLoader>

Constructor Summary

Constructors

Constructor and Description
LRUModuleDependenciesClassLoaderCache()
LRUModuleDependenciesClassLoaderCache(BuildInfoService buildInfoService)

Method Summary

Modifier and Type	Method and Description
ClassLoader	assertDependenciesClassLoader(KieModule module)
static ClassLoader	buildClassLoader(KieModule module, org.kie.scanner.KieModuleMetaData kieModuleMetaData) This method and the subsequent caching was added for performance reasons, since the dependencies calculation and module class loader calculation tends to be time consuming when we manage module with transitives dependencies.
protected void	setBuildInfoService(BuildInfoService buildInfoService)
void	setDependenciesClassLoader(KieModule module, ClassLoader classLoader)

Methods inherited from class org.guvnor.common.services.backend.cache.LRUCache

getEntry, getKeys, invalidateCache, invalidateCache, setEntry

Methods inherited from class java.lang.Object

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

Constructor Detail

LRUModuleDependenciesClassLoaderCache

public LRUModuleDependenciesClassLoaderCache()

LRUModuleDependenciesClassLoaderCache

@Inject
public LRUModuleDependenciesClassLoaderCache(BuildInfoService buildInfoService)

Method Detail

setBuildInfoService

protected void setBuildInfoService(BuildInfoService buildInfoService)

assertDependenciesClassLoader

public ClassLoader assertDependenciesClassLoader(KieModule module)

buildClassLoader

public static ClassLoader buildClassLoader(KieModule module,
                                           org.kie.scanner.KieModuleMetaData kieModuleMetaData)

This method and the subsequent caching was added for performance reasons, since the dependencies calculation and module class loader calculation tends to be time consuming when we manage module with transitives dependencies. Since the module ClassLoader may change with ever incremental build it's better to store in the cache the ClassLoader part that has the module dependencies. And the module ClassLoader can be easily calculated using this ClassLoader as parent. Since current module classes are quickly calculated on each incremental build, etc.

setDependenciesClassLoader

public void setDependenciesClassLoader(KieModule module,
                                       ClassLoader classLoader)