com.holonplatform.core.internal

Class ContextManager

java.lang.Object

com.holonplatform.core.internal.ContextManager

public final class ContextManager
extends Object

Context manager to register and retrieve ContextScopes.

Since:

5.0.0

Method Summary

Modifier and Type	Method and Description
static ClassLoader	getDefaultClassLoader() Gets the default ClassLoader.
static ContextScope	getScope(String name) Gets the ContextScope with given name bound to default ClassLoader
static ContextScope	getScope(String name, ClassLoader classLoader) Gets the ContextScope with given name bound to given classLoader
static Iterable<ContextScope>	getScopes() Gets all available ContextScopes for default ClassLoader
static Iterable<ContextScope>	getScopes(ClassLoader classLoader) Gets all available ContextScopes for given classLoader
static boolean	isScopeRegistered(ClassLoader classLoader, String scopeName) Gets whether the given scope name is registered for given classLoader.
static boolean	isUseClassLoaderHierarchy() Get whether the ClassLoader hierarchy (i.e.
static void	registerScope(ClassLoader classLoader, ContextScope scope) Register a ContextScope bound to given classLoader.
static void	setDefaultClassLoader(ClassLoader classLoader) Sets the default ClassLoader to use when a ClassLoader is not directly specified.
static void	setUseClassLoaderHierarchy(boolean useClassLoaderHierarchy) Set whether the ClassLoader hierarchy (i.e.
static boolean	unregisterScope(ClassLoader classLoader, String name) Unregister the ContextScope bound to given classLoader, if any.

Methods inherited from class java.lang.Object

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

Method Detail

isUseClassLoaderHierarchy

public static boolean isUseClassLoaderHierarchy()

Get whether the ClassLoader hierarchy (i.e. current ClassLoader and all it's parents) must be scanned when looking for available context scopes.

Returns:

true if the ClassLoader hierarchy must be scanned when looking for available context scopes, false if only the current ClassLoader must be taken into account

setUseClassLoaderHierarchy

public static void setUseClassLoaderHierarchy(boolean useClassLoaderHierarchy)

Set whether the ClassLoader hierarchy (i.e. current ClassLoader and all it's parents) must be scanned when looking for available context scopes.

Parameters:

useClassLoaderHierarchy - true to scan the ClassLoader hierarchy when looking for available context scopes, false if only the current ClassLoader must be taken into account

getDefaultClassLoader

public static ClassLoader getDefaultClassLoader()

Gets the default ClassLoader.

Returns:

the default ClassLoader. If null, ClassUtils.getDefaultClassLoader() will be used

setDefaultClassLoader

public static void setDefaultClassLoader(ClassLoader classLoader)

Sets the default ClassLoader to use when a ClassLoader is not directly specified.

Parameters:

classLoader - the default ClassLoader

isScopeRegistered

public static boolean isScopeRegistered(ClassLoader classLoader,
                                        String scopeName)

Gets whether the given scope name is registered for given classLoader.

Parameters:

classLoader - ClassLoader. If null, getDefaultClassLoader() will be used

scopeName - Scope name (not null)

Returns:

true if scope is registered

registerScope

public static void registerScope(ClassLoader classLoader,
                                 ContextScope scope)

Register a ContextScope bound to given classLoader.

Parameters:

classLoader - ClassLoader. If null, getDefaultClassLoader() will be used

scope - Scope to register (not null)

unregisterScope

public static boolean unregisterScope(ClassLoader classLoader,
                                      String name)

Unregister the ContextScope bound to given classLoader, if any.

Parameters:

classLoader - ClassLoader. If null, getDefaultClassLoader() will be used

name - Scope name (not null)

Returns:

true if the scope was unregistered

getScopes

public static Iterable<ContextScope> getScopes()

Gets all available ContextScopes for default ClassLoader

Returns:

ContextScopes iterator, preserving the order defined using ContextScope.getOrder()

See Also:

getDefaultClassLoader()

getScopes

public static Iterable<ContextScope> getScopes(ClassLoader classLoader)

Gets all available ContextScopes for given classLoader

Parameters:

classLoader - ClassLoader. If null, getDefaultClassLoader() will be used

Returns:

ContextScopes iterator, preserving the order defined using ContextScope.getOrder()

getScope

public static ContextScope getScope(String name)

Gets the ContextScope with given name bound to default ClassLoader

Parameters:

name - Scope name (not null)

Returns:

ContextScope with given name, or null if not registered

getScope

public static ContextScope getScope(String name,
                                    ClassLoader classLoader)

Gets the ContextScope with given name bound to given classLoader

Parameters:

name - Scope name (not null)

classLoader - ClassLoader. If null, getDefaultClassLoader() will be used

Returns:

ContextScope with given name, or null if not registered