Significance of render:logdep tag in Fatwire / Oracle WebCenter Sites

Posted: December 18, 2012 in Fatwire
Tags: , , , , ,

Many a times, at the time of creating a CSElement or a Template, you might have seen a tag render:logdep which Content Server automatically includes for you.

We will now see what is the significance of that tag.

Firstly before learning about this tag, and its significance, make sure that you read about the Compositional Dependency.

Compositional dependency is the dependency between the asset and the page in which it is being rendered. These dependencies are automatically logged when we use certain tags like asset:load, assetset tags, etc.

But, when we don’t those tags in our code, then how will the compositional dependency be logged?

If we don’t use such tags which log automatically dependencies, then it is our duty to log the compositional dependency.

Examples of such scenarios:

Scenario 1:

In my code, I have a template called SampleTemplate. From that SampleTemplate, I’m going to call a CSElement named SampleElement, to render some things. In such case, I will call the render:callelement as follows.

// SampleTemplate code goes here
….
<render:callelement name=MySite/Common/SampleElement/>
…..
// SampleTemplate code goes here

In the above scenario, how will the compositional dependency between the CSElement asset and the page that it renders will be executed? It won’t be logged, as we haven’t used any asset:load tags, etc.

Scenario 2:

We are loading an asset using asset:load, and then without loading its children assets, we are getting the children’s info using asset:children. Under such circumstances, the compositional dependency is not logged between these assets and the page that is rendering these assets.

In both the above scenarios, its our responsibility to log the dependency.

Under such circumstances, the render:logdep tag is useful to log the COMPOSITIONAL DEPENDENCIES between the assets and the page that renders the asset.

If it is a CSElement , its syntax would be <render:logdep cid=”Variables.eid” c=”CSElement”/>

If it is a Template, its syntax would be <render:logdep cid=”Variables.tid” c=”Template”/>

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s