Module openj9.sharedclasses

Package com.ibm.oti.shared

The OpenJ9 shared classes API, a persistent share which can contain classes, precompiled code (AOT), JIT data, and other data used to improve start up performance and reduce memory footprint.

Interface Summary

Interface	Description
SharedClassFilter	SharedClassFilter allows users of a Helper API to filter which classes are found and stored in the cache.
SharedClassHelper	The SharedClassHelper superinterface defines functions that are common to all class helpers.
SharedClassHelperFactory	SharedClassHelperFactory provides an interface that is used to create various types of SharedClassHelper for ClassLoaders.
SharedClassTokenHelper	SharedClassHelper API that stores and finds classes using String tokens.
SharedClassURLClasspathHelper	SharedClassHelper API that stores and finds classes by using URL classpaths.
SharedClassURLClasspathHelper.IndexHolder	Interface that allows an index to be returned from findSharedClass calls.
SharedClassURLHelper	SharedClassHelper API that stores and finds classes by using URL paths.
SharedDataHelper	SharedDataHelper API that stores and finds byte data using String tokens.
SharedDataHelperFactory	SharedDataHelperFactory provides an interface used to create SharedDataHelpers.
SharedHelper	The SharedHelper superinterface defines functions common to all helpers.

Class Summary

Class	Description
Shared	Global class that provides SharedClassHelperFactory, SharedDataHelperFactory and sharing status.
SharedAbstractHelper	SharedAbstractHelper provides common functions and data to helper subclasses.
SharedAbstractHelperFactory	SharedAbstractHelperFactory is an abstract superclass for helper factory subclasses.
SharedClassAbstractHelper	SharedClassAbstractHelper provides common functions and data to class helper subclasses.
SharedClassCacheInfo	SharedClassCacheInfo stores information about a shared class cache and provides methods to retrieve that information.
SharedClassesNamedPermission	This class defines shared cache permissions as described in the following table.
SharedClassPermission	SharedClassPermission provides security permission to govern ClassLoader access to the shared class cache.
SharedClassPermissionCollection	SharedClassPermissionCollection provides permission collection to support SharedClassPermission.
SharedClassStatistics	SharedClassStatistics provides static functions that report basic cache statistics.
SharedClassUtilities	SharedClassUtilities provides APIs to get information about all shared class caches in a directory and to destroy a particular shared class cache.

Exception Summary

Exception	Description
CannotSetClasspathException	Exception thrown if an attempt is made to modify confirmed elements of a classpath in SharedClassURLClasspathHelper.
HelperAlreadyDefinedException	Exception thrown if a factory is asked to get multiple helpers for a ClassLoader.