org.apache.tapestry5.ioc
Class ScopeConstants

java.lang.Object
  org.apache.tapestry5.ioc.ScopeConstants

public class ScopeConstants
extends Object

Defines constants for built-in scopes (used with the Scope annotation.

Field Summary

static String	DEFAULT The default scope is a singleton within the Registry.
static String	PERTHREAD An alternate scope provided with Tapestry; a per-thread instance is created on demand, behind a shared proxy.

Constructor Summary

ScopeConstants()

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT

public static final String DEFAULT

The default scope is a singleton within the Registry. A single instance will be created on demand. The lifespan of the instance lasts until the registry is shut down.

Some implementations will want to know when the Registry is shutdown; they should register for notifications via the RegistryShutdownHub service.

See Also:

Constant Field Values

PERTHREAD

public static final String PERTHREAD

An alternate scope provided with Tapestry; a per-thread instance is created on demand, behind a shared proxy. Method invocations on the shared proxy are forwarded to the per-thread instance. Each per-thread instance lasts until the thread is cleaned up (at the end of a request for a web application).

Some implementations will want to be notified before being discarded and should register with the PerthreadManager to receive notifications.

See Also:

PerThreadServiceLifecycle, Constant Field Values

Constructor Detail

ScopeConstants

public ScopeConstants()