Component Profile

The following table describes the profile properties that you can define in the deployment descriptor - in the <component-profile> element for your component - in order to control the caching of your component's content:

Property	Description
`CachingLevel`	Indicates the type of cache, as follows: `None` (default): The component is not cached. `Shared`: The component's content is cached and the cache is shared among all the users. `User`: The component's content is cached separately for each user. `Session`: The component's content is cached all the time the (servlet) session is running, whether or not a user is connected. This level is used to cache information related to the browser's sessions.
`ValidityPeriod`	Indicates how long the cache is valid, in milliseconds. -1 indicates the cache never expires.
`ALLOW_BROWSER`	Indicates if browser caching is used: `Yes` (default): Browser caching enabled. `No`: Browser caching disabled, for cases where you do not want to store cache locally. `BrowserOnly`: Only browser caching is used; server stores only cache meta-data.

Property

Description

CachingLevel

Indicates the type of cache, as follows:

None (default): The component is not cached.
Shared: The component's content is cached and the cache is shared among all the users.
User: The component's content is cached separately for each user.
Session: The component's content is cached all the time the (servlet) session is running, whether or not a user is connected. This level is used to cache information related to the browser's sessions.

ValidityPeriod

Indicates how long the cache is valid, in milliseconds.

-1 indicates the cache never expires.

ALLOW_BROWSER

Indicates if browser caching is used:

Yes (default): Browser caching enabled.
No: Browser caching disabled, for cases where you do not want to store cache locally.
BrowserOnly: Only browser caching is used; server stores only cache meta-data.

The following is a deployment descriptor that defines a component with a CachingLevel of session and ValidityPeriod of 2 seconds:

Syntax Syntax

```
<application>
```
```
  <application-config/>
```
```
  <components>
```
```
    <component name="session">
```
```
      <component-config>
```

        <property name="ClassName" value="myApp.myCompnent"/>

```
      </component-config>
```
```
      <component-profile>
```

        <property name="CachingLevel" value="Session"/>

        <property name="ValidityPeriod" value="2000"/>

```
      </component-profile>
```
```
    </component>
```
```
  </components>
```
```
</application>
```

End of the code.