Package jetbrains.mps.classloading

Enum ClassLoadersHolder.ClassLoadingProgress

java.lang.Object

java.lang.Enum<ClassLoadersHolder.ClassLoadingProgress>

jetbrains.mps.classloading.ClassLoadersHolder.ClassLoadingProgress

All Implemented Interfaces:

Serializable, Comparable<ClassLoadersHolder.ClassLoadingProgress>

Enclosing class:

ClassLoadersHolder

public static enum ClassLoadersHolder.ClassLoadingProgress
extends Enum<ClassLoadersHolder.ClassLoadingProgress>

Class loading progress of each MPS-loadable module. Module lifecycle: At first the module is UNLOADED. It comes to repository and a call of ClassLoaderManager.preLoadModules(Iterable, org.jetbrains.mps.openapi.util.ProgressMonitor) happens. Then we check whether the module's dependencies are valid to load (and some other conditions). If everything is okay then we send broadcast notification to the clients of DeployListener. The state of module is changed to LAZY_LOADED at that moment. When the classes of module are requested [through #getClass(), #getOwnClass(), #getClassLoader()] methods, the actual ClassLoader construction happens and then the module is marked as LOADED. LAZY_LOADED state could not be skipped. When #reloadModules happens, module ClassLoader's are unloaded and then preLoaded (!) again. [back to lazy state again] So the state diagram looks like this: UNLOADED -> LAZY_LOADED -> LOADED LAZY_LOADED -> UNLOADED LOADED -> UNLOADED

Enum Constant Summary

Enum Constants

Enum Constant	Description
LAZY_LOADED	The notifications for DeployListener clients were sent.
LOADED	ModuleClassLoader's are created.
UNLOADED	Class loading has not been initiated yet.

Method Summary

Modifier and Type	Method	Description
static ClassLoadersHolder.ClassLoadingProgress	valueOf(String name)	Returns the enum constant of this type with the specified name.
static ClassLoadersHolder.ClassLoadingProgress[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

UNLOADED

public static final ClassLoadersHolder.ClassLoadingProgress UNLOADED

Class loading has not been initiated yet. [Implies there is no such module in the repository]. Note: this enum value is not stored in corresponding map for the sake of simplicity.

LAZY_LOADED

public static final ClassLoadersHolder.ClassLoadingProgress LAZY_LOADED

The notifications for DeployListener clients were sent. No actual class loading happened, This module was only marked to load.

LOADED

public static final ClassLoadersHolder.ClassLoadingProgress LOADED

ModuleClassLoader's are created.

Method Detail

values

public static ClassLoadersHolder.ClassLoadingProgress[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (ClassLoadersHolder.ClassLoadingProgress c : ClassLoadersHolder.ClassLoadingProgress.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static ClassLoadersHolder.ClassLoadingProgress valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null