org.apache.tapestry5.internal.services
Class ApplicationMessageCatalogObjectProvider

java.lang.Object
  org.apache.tapestry5.ioc.internal.util.LockSupport
      org.apache.tapestry5.internal.services.ApplicationMessageCatalogObjectProvider

All Implemented Interfaces:

ObjectProvider, InvalidationListener

public class ApplicationMessageCatalogObjectProvider
extends LockSupport
implements ObjectProvider, InvalidationListener

Allows for injection of the global application message catalog into services. The injected value is, in fact, a proxy. Each method access of the proxy will determine the current thread's locale, and delegate to the actual global message catalog for that particular locale. There's caching to keep it reasonably efficient.

Since:

5.2.0

See Also:

ComponentMessagesSource.getApplicationCatalog(Locale)

Constructor Summary

ApplicationMessageCatalogObjectProvider(ObjectLocator locator)

Method Summary

void	objectWasInvalidated() Invoked to indicate that some object is invalid.
<T> T	provide(Class<T> objectType, AnnotationProvider annotationProvider, ObjectLocator locator) Provides an object based on an expression.

Methods inherited from class org.apache.tapestry5.ioc.internal.util.LockSupport

acquireReadLock, downgradeWriteLockToReadLock, releaseReadLock, releaseWriteLock, takeWriteLock, upgradeReadLockToWriteLock

Methods inherited from class java.lang.Object

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

Constructor Detail

ApplicationMessageCatalogObjectProvider

public ApplicationMessageCatalogObjectProvider(ObjectLocator locator)

Method Detail

provide

public <T> T provide(Class<T> objectType,
                     AnnotationProvider annotationProvider,
                     ObjectLocator locator)

Description copied from interface: ObjectProvider

Provides an object based on an expression. The process of providing objects occurs within a particular context, which will typically be a service builder method, service contributor method, or service decorator method. The locator parameter provides access to the services visible to that context.

Specified by:

provide in interface ObjectProvider

Parameters:

objectType - the expected object type

annotationProvider - provides access to annotations (typically, the field or parameter to which an injection-related annotation is attached); annotations on the field or parameter may also be used when resolving the desired object

locator - locator for the context in which the provider is being used

Returns:

the requested object, or null if this object provider can not supply an object

objectWasInvalidated

public void objectWasInvalidated()

Description copied from interface: InvalidationListener

Invoked to indicate that some object is invalid. The receiver should clear its cache.

Specified by:

objectWasInvalidated in interface InvalidationListener