Is it possible to use an AJAX call in Portlet A to dynamically update Portlet B without refreshing the entire portal page? I am aware that portlets can refresh their content using the JSR286 resourceURL tag, but I am curious about targeting and updating a different portlet.
The goal is to prevent the need for a complete portal page refresh when performing inter-portlet communication through actionURL or events.
To establish communication between portlets, you can utilize jQuery's trigger() and bind() methods. This enables all communication to occur on the client-side, without the need for server interaction.
Portlet B, which is listening for the event, can implement the following code:
$(document).bind("myevent", function(event, param) {
// perform the necessary tasks here
alert("Message received with data: " + param);
});
Portlet A, responsible for triggering the event, can use the following code:
$(document).trigger("myevent", "mydata");
In the scenario where Portlet B does not require server-side logic, an efficient approach would be to implement pub/sub on the client side. This way, Portlet B can simply listen for a specific event that will be published by Portlet A.
The process flow is as follows:
Implementing pub/sub in this manner helps in decoupling the portlets from one another. This design ensures that if Portlet A is absent, Portlet B remains unaffected. Similarly, if Portlet B is not present, Portlet A continues to function seamlessly.
Moreover, if a new Portlet C is introduced and is also capable of fetching MyData, it can begin publishing "MyDataUpdated" events. Consequently, Portlet B will automatically start receiving these updates without any additional effort. This approach enables Portlet B to stay updated with new information effortlessly!
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