Propagating a Tiles attribute down the include chain

Question

I\'m using Tiles and I\'d like an attribute defined for a page to be readable inside of one of the included subpages as follows:

tiles-definitions.xml:

Answer 1

To propagate the title attribute to inner templates you need to add cascade="true" attribute to the title's <put-attribute> tag, like this:

<definition name="tutorial" extends="page">
  <put-attribute name="title" cascade="true" value="Tutorial"/>
  <put-attribute name="body" value="/WEB-INF/jsp/tutorial.jsp"/>
</definition>

Answer 2

Take care to upgrade the Tiles definition file to 2.1 min, as cascade is available since 2.1.

<!DOCTYPE tiles-definitions PUBLIC "-//Apache Software Foundation//DTD Tiles Configuration 2.1//EN" "http://tiles.apache.org/dtds/tiles-config_2_1.dtd">