General Questions

How do I get started with Tapestry?

The easiest way to get started is to use Apache Maven to create your initial project; Maven can use an archetype (a kind of project template) to create a bare-bones Tapestry application for you.

One you have Maven installed, execute the command mvn archetype:generate -DarchetypeCatalog=http://tapestry.apache.org. Maven will (after performing a large number of one-time downloads) ask you questions about how to create the new project, including a group id (like a package name) and an artifact id for your new project. Once it is created, you can load it into any IDE and start coding, or use mvn jetty:run ¹ . Again, more one-time downloads, but then you can open you browser to http://localhost:8080 to run the application.

Limitions

How do I add new components to an existing page dynamically?

The short answer here is: you don't. The long answer here is you don't have to, to get the behavior you desire.

One of Tapestry basic values is high scalability: this is expressed in a number of ways, reflecting scalability concerns within a single server, and within a cluster of servers.

Although you code Tapestry pages and components as if they were ordinary POJOs ²

Specific Errors

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1. Jetty is a well-known high-performance servlet container. Jetty starts up quickly, and implements the official Servlet specification very closely. ↩
2. Plain Old Java Object. Tapestry does not require you to extend any base classes or implement any special interfaces. ↩