Sun Java System Application Server Platform Edition 8.2 Administration Reference

E

ejb-container

Configures the EJB container. Stateless session beans are maintained in pools. Stateful session beans have session affinity and are cached. Entity beans associated with a database primary key are also cached. Entity beans not yet associated with a primary key are maintained in pools. Pooled entity beans are used to run ejbCreate() and finder methods.

Superelements

config

Subelements

The following table describes subelements for the ejb-container element.

Table 1–35 ejb-container Subelements


Element	Required	Description
ejb-timer-service	zero or one	Configures the EJB timer service.
property	zero or more	Specifies a property or a variable.

Attributes

The following table describes attributes for the ejb-container element.

Table 1–36 ejb-container Attributes


Attribute	Default	Description
`steady-pool-size`	`32`	(optional) Specifies the initial and minimum number of beans maintained in the pool. Must be `0` or greater and less than `max-pool-size` . Bean instances are removed from the pool and returned after use. The pool is replenished or cleaned up periodically to maintain this size. Applies to stateless session beans and entity beans.
`pool-resize-quantity`	`16`	(optional) Specifies the number of beans to be removed when the `pool-idle-timeout-in-seconds` timer expires. A cleaner thread removes any unused instances. Must be `0` or greater and less than `max-pool-size` . The pool is not resized below the `steady-pool-size`. Applies to stateless session beans and entity beans.
`max-pool-size`	`64`	(optional) Specifies the maximum number of beans that can be created to satisfy client requests. A value of `0` indicates an unbounded pool. Applies to stateless session beans and entity beans.
`cache-resize-quantity`	`32`	(optional) Specifies the number of beans to be: created if a request arrives when the pool has no available beans (subject to the `max-cache-size` limit) passivated when the `cache-idle-timeout-in-seconds` timer expires and a cleaner thread removes any unused instances, or when the cache size exceeds `max-cache-size`. Must be greater than `1` and less than `max-cache-size`. Applies to stateful session beans and entity beans.
`max-cache-size`	`512`	(optional) Specifies the maximum number of beans in the cache. A value of `0` indicates an unbounded cache. Applies to stateful session beans and entity beans.
`pool-idle-timeout-in-seconds`	`600`	(optional) Specifies the maximum time that a bean can remain idle in the pool. After this amount of time, the pool can remove this bean. A value of `0` specifies that idle beans can remain in the pool indefinitely. Applies to stateless session beans and entity beans.
`cache-idle-timeout-in-seconds`	`600`	(optional) Specifies the maximum time that a bean can remain idle in the cache. After this amount of time, the container can passivate this bean. A value of `0` specifies that beans never become candidates for passivation. Applies to stateful session beans and entity beans.
`removal-timeout-in-seconds`	`5400`	(optional) Specifies the amount of time that a bean can remain passivated before it is removed from the session store. A value of `0` specifies that the container does not remove inactive beans automatically. If `removal-timeout-in-seconds` is less than or equal to `cache-idle-timeout-in-seconds`, beans are removed immediately without being passivated. The `session-store` attribute of the server element determines the location of the session store. Applies to stateful session beans.
`victim-selection-policy`	`nru`	(optional) Specifies how stateful session beans are selected for passivation. Allowed values are `fifo`, `lru`, and `nru` : `fifo` - Selects the oldest instance. `lru` - Selects the least recently accessed instance. `nru` - Selects a not recently used instance.
`commit-option`	`B`	(optional) Determines which commit option is used for entity beans. Legal values are `B` or `C`.
`session-store`	`domain-dir/session-store`	(optional) Specifies the directory where passivated stateful session beans and persisted HTTP sessions are stored in the file system.

ejb-module

Specifies a deployed EJB module.

Superelements

applications

Subelements

The following table describes subelements for the ejb-module element.

Table 1–37 ejb-module Subelements


Element	Required	Description
description	zero or one	Contains a text description of this element.

Attributes

The following table describes attributes for the ejb-module element.

Table 1–38 ejb-module Attributes


Attribute	Default	Description
`name`	none	The name of the EJB module.
`location`	none	The location of the EJB module in the Application Server file system.
`object-type`	`user`	(optional) Defines the type of the resource. Allowed values are: `system-all` - A system resource for all server instances and the domain application server. `system-admin` - A system resource only for the domain application server. `system-instance` - A system resource for all server instances only. `user` - A user resource.
`enabled`	`true`	(optional) Determines whether the EJB module is enabled.
`directory-deployed`	`false`	(optional) Specifies whether the application has been deployed to a directory.

ejb-timer-service

Configures the EJB timer service.

Superelements

ejb-container

Subelements

The following table describes subelements for the ejb-timer-service element.

Table 1–39 ejb-timer-service Subelements


Element	Required	Description
property	zero or more	Specifies a property or a variable.

Attributes

The following table describes attributes for the ejb-timer-service element.

Table 1–40 ejb-timer-service Attributes


Attribute	Default	Description
`minimum-delivery-interval-in-millis`	`7000`	(optional) Specifies the minimum time before an expiration for a particular timer can occur. This guards against extremely small timer increments that can overload the server.
`max-redeliveries`	`1`	(optional) Specifies the maximum number of times the EJB timer service attempts to redeliver a timer expiration due for exception or rollback.
`timer-datasource`	`jdbc/ __TimerPool`	(optional) Overrides the `cmp-resource` value specified in `sun-ejb-jar.xml` for the timer service system application (`__ejb_container_timer_app` ).
`redelivery-interval-internal-in-millis`	`5000`	(optional) Specifies how long the EJB timer service waits after a failed `ejbTimeout` delivery before attempting a redelivery.

external-jndi-resource

Defines a resource that resides in an external JNDI repository. For example, a generic Java object could be stored in an LDAP server. An external JNDI factory must implement the javax.naming.spi.InitialContextFactory interface.

Superelements

resources

Subelements

The following table describes subelements for the external-jndi-resource element.

Table 1–41 external-jndi-resource Subelements


Element	Required	Description
description	zero or one	Contains a text description of this element.
property	zero or more	Specifies a property or a variable.

Attributes

The following table describes attributes for the external-jndi-resource element.

Table 1–42 external-jndi-resource Attributes


Attribute	Default	Description
`jndi-name`	none	Specifies the JNDI name for the resource.
`jndi-lookup-name`	none	Specifies the JNDI lookup name for the resource.
`res-type`	none	Specifies the fully qualified type of the resource.
`factory-class`	none	Specifies the fully qualified name of the factory class, which implements `javax.naming.spi.InitialContextFactory`. For more information about JNDI, see the Sun Java System Application Server Platform Edition 8.2 Developer’s Guide.
`object-type`	`user`	(optional) Defines the type of the resource. Allowed values are: `system-all` - A system resource for all server instances and the domain application server. `system-admin` - A system resource only for the domain application server. `system-instance` - A system resource for all server instances only. `user` - A user resource.
`enabled`	`true`	(optional) Determines whether this resource is enabled at runtime.