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For example, the
message in the page-specific catalogue will override the one in the root catalog.
In the example above, the login-here message will be easily found in the page's
catalog, but for the celebrity-collector message Tapestry will have to look into
the root one. All this works automatically though.
Internationalization and Localization
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The other way we can obtain a message in the page template is by using message:
prefix inside an attribute value. The following fragment of the Start page template
demonstrates this approach:



Label for the first text box:


t:label="message:user-name" t:validate="required"/>




The second label:


t:label="message:password" t:type="PasswordField"
t:validate="required"/>


You already know two prefixes??”literal: which tells Tapestry that whatever
follows should be taken literally, and prop: which tells Tapestry that the value
should be provided by a property of the page class. So here is the third one,
message: which tells Tapestry that the value should be obtained from the message
catalog using the provided key.


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