org.apache.tapestry.annotations
Annotation Type Bean

@Target(value=METHOD)
@Retention(value=RUNTIME)
@Documented
public @interface Bean

Annotation used to define new managed beans, including limited/lightweight initialization. For complex initialiation, the XML specification is necessary.

One of the advantages is that, on the XML side, it is always necessary to provide complete class names; here on the Java/annotation side, we can leverage imports.

The managed bean will have a name that matches the property name; this allows such a bean to be referenced via the "bean:" binding prefix, or via IComponent.getBeans().

This annotation adds a new IBeanSpecification to the IComponentSpecification.

Since:

4.0

Author:

Howard M. Lewis Ship

Optional Element Summary

String	initializer Optional initializer string for the bean, as lightweight initialization (a list of properties and values).
Lifecycle	lifecycle The lifecycle of the bean, defaults to Lifecycle.REQUEST.
Class	value The Java class to instantiate.

value

public abstract Class value

The Java class to instantiate. The default is Object.class; if a non-default value is specified, that will be the class to instantiate; otherwise, the bean class will be determined from the property type. Generally, this annotation is only used when the property type is an interface (or abstract base class).

Default:

java.lang.Object.class

initializer

public abstract String initializer

Optional initializer string for the bean, as lightweight initialization (a list of properties and values).

Default:

""

lifecycle

public abstract Lifecycle lifecycle

The lifecycle of the bean, defaults to Lifecycle.REQUEST.

See Also:

BeanLifecycle

Default:

org.apache.tapestry.annotations.Lifecycle.REQUEST