dispatcher cache

[Punith_Shetty]

Hi

In dispatcher i need to clear the cache for a component which basically reads a value which will be incremented in publish Mode.But because of the caching in the dispatcher mode, old values are retreived. But the component functionality works fine in publish mode.

EX: Suppose a value get incremented on clicking a button, I need to display the value based on the counter.

IN Publish: Most recent update is rendered.

But in dispatcher: Old values are getting rendered because of the caching.Suppose if i append somethng like http://sample.com?1234 

then since the url is not cached,then the component displays the most recent entries.

So is there a way to disable the caching for ceratin pages in dispatcher mode

[Ojjis]

Hi punith this is absolutely possible.
In the dispatcher.any file there is a caching section where you tell the dispatcher what to cache. In the rules section you could add this:
 

/rules { /0000  { /glob "*" /type "allow" } /0001  { /glob "/path/to/noncachablefile*" /type "deny" } }

This first allows everything but later denies caching for your certtain file.

Good Luck
/Johan

[Scott_Brodersen]

To add to what Johan said, here are some links to the docs:

• configuring what is cached: http://dev.day.com/docs/en/cq/current/deploying/dispatcher/disp_config.html#Configuring%20the%20Disp...
• forumating glob patterns: http://dev.day.com/docs/en/cq/current/deploying/dispatcher/disp_config.html#Designing%20Patterns%20for%20glob%20Properties 

scott

[Punith_Shetty]

Thanks Johan and Scott,

But is there any way, though which the same can be achieved programatically.

Thanks

[Ojjis · Accepted solution]

Well you could also do as you did in your first post. This is usually how CQ/AEM solves the problem with some includes that it don't want to be cached. Eg. in the javascript api there are methods for this where it simply adds a timestamp (as a querystring) to links that are supposed to be non-cachable. So your original solution seems like the right approach there if you don't want to configure the dispatcher.

/Johan