com.vaadin.flow.server.startup

Class ServletVerifier

java.lang.Object

com.vaadin.flow.server.startup.ServletVerifier

All Implemented Interfaces:

ClassLoaderAwareServletContainerInitializer

public class ServletVerifier
extends Object
implements ClassLoaderAwareServletContainerInitializer

Verify the servlet version on container initialization.

In cases of non compatible servlet version application deployment will fail.

For internal use only. May be renamed or removed in a future release.

Since:

1.0

Constructor Summary

Constructors

Constructor and Description
ServletVerifier()

Method Summary

Modifier and Type	Method and Description
void	process(Set<Class<?>> c, ServletContext ctx) Implement this method instead of ClassLoaderAwareServletContainerInitializer.onStartup(Set, ServletContext) to handle classes accessible by different classloaders.
static void	verifyServletVersion() Verify that the used servlet version is not too old.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.vaadin.flow.server.startup.ClassLoaderAwareServletContainerInitializer

onStartup, requiresLookup

Constructor Detail

ServletVerifier

public ServletVerifier()

Method Detail

process

public void process(Set<Class<?>> c,
                    ServletContext ctx)
             throws ServletException

Description copied from interface: ClassLoaderAwareServletContainerInitializer

Implement this method instead of ClassLoaderAwareServletContainerInitializer.onStartup(Set, ServletContext) to handle classes accessible by different classloaders.

Specified by:

process in interface ClassLoaderAwareServletContainerInitializer

Parameters:

c - the Set of application classes that extend, implement, or have been annotated with the class types specified by the HandlesTypes annotation, or null if there are no matches, or this ServletContainerInitializer has not been annotated with HandlesTypes

ctx - the ServletContext of the web application that is being started and in which the classes contained in c were found

Throws:

ServletException - if an error has occurred

See Also:

ClassLoaderAwareServletContainerInitializer.onStartup(Set, ServletContext)

verifyServletVersion

public static void verifyServletVersion()
                                 throws ServletException

Verify that the used servlet version is not too old.

Throws:

ServletException - thrown if the servlet version is not compatible