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The "HowTo/FasterStartUp" page has been changed by KonstantinKolinko: https://wiki.apache.org/tomcat/HowTo/FasterStartUp?action=diff&rev1=18&rev2=19 Comment: Add link to the migration guide. Other features that require scanning are: - * Discovery of tag libraries — scanning for Tag Library Descriptor files (`META-INF/**/*.tld`) (shortened as TLD scanning) + * Discovery of tag libraries. That is scanning for Tag Library Descriptor files (`META-INF/**/*.tld`) (shortened as TLD scanning) The TLD scanning is done at startup, because a library can define a `Listener` in its TLD file. @@ -37, +37 @@ There are two options that can be specified in your `WEB-INF/web.xml` file: - 1. `metadata-complete="true"` attribute on the `<web-app>` element. + 1. Set `metadata-complete="true"` attribute on the `<web-app>` element. - 2. an empty `<absolute-ordering />` element. + 2. Add an empty `<absolute-ordering />` element. + Setting `metadata-complete="true"` disables scanning your web application and its libraries for classes that use annotations to define components of a web application (Servlets etc.). The `metadata-complete` option is not enough to disable all of annotation scanning. If there is a SCI with a `@HandlesTypes` annotation, Tomcat has to scan your application for classes that use annotations or interfaces specified in that annotation. - Setting `metadata-complete="true"` disables scanning your web application and its libraries for classes that use annotations to define components of a web application (Servlets etc.). - - The `metadata-complete` option is not enough to disable all of annotation scanning. If there is a SCI with a !HandlesTypes annotation, Tomcat has to scan your application for classes that use annotations or interfaces specified in that annotation. The `<absolute-ordering>` element specifies which web fragment JARs (according to the names in their `WEB-INF/web-fragment.xml` files) have to be scanned for SCIs, fragments and annotations. An empty `<absolute-ordering/>` element configures that none are to be scanned. @@ -50, +48 @@ An example of a container-provided SCI is in the WebSocket API implementation jar (`tomcat-websocket.jar`, `tomcat7-websocket.jar`) which is included with Tomcat 7 starting with 7.0.47. If you do not need support for WebSockets, you may remove it. Scanning for web application resources and TLD scanning are not affected by these options. + + See also a chapter in [[http://tomcat.apache.org/migration-7.html#Annotation_scanning|Tomcat 7 migration guide]]. == Exclude JARs from scanning == --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
