public interface BlockA block is a collection of static text and elements, and components, derived from a component template. In the template, a block is demarcated using the <t:block> or <t:parameter> elements. The interface defines no methods, but the provided implementations of Block are capable of rendering their contents on demand. Tapestry includes coercions from String to
Renderableto Block. This means that components that take Block parameters may be bound to literal strings, to arbitrary numbers (or other objects, with the expectation that they will be converted to strings), or to renderable objects such as components.