jakarta.servlet.ServletRegistration Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jakarta.servlet;
import java.util.Collection;
import java.util.Set;
/**
* Interface through which a Servlet may be further configured.
*
* @since Servlet 3.0
*/
public interface ServletRegistration extends Registration {
/**
* Adds a servlet mapping with the given URL patterns for the Servlet
* represented by this ServletRegistration. If any of the specified URL
* patterns are already mapped to a different Servlet, no updates will
* be performed.
*
* If this method is called multiple times, each successive call adds to
* the effects of the former. The returned set is not backed by the
* ServletRegistration object, so changes in the returned set are not
* reflected in the ServletRegistration object, and vice-versa.
*
* @param urlPatterns The URL patterns that this Servlet should be mapped to
* @return the (possibly empty) Set of URL patterns that are already mapped
* to a different Servlet
* @throws IllegalArgumentException if urlPattern is null or empty
* @throws IllegalStateException if the associated ServletContext has
* already been initialised
*/
public Set addMapping(String... urlPatterns);
/**
* Gets the currently available mappings of the Servlet represented by this
* ServletRegistration.
*
* If permitted, any changes to the returned Collection must not affect this
* ServletRegistration.
*
* @return a (possibly empty) Collection of the currently available mappings
* of the Servlet represented by this ServletRegistration
*/
public Collection getMappings();
/**
* Obtain the name of the user / group under which the Servlet has been
* configured to run.
*
* @return the name of the user / group or {@code null} if none has been
* specified
*/
public String getRunAsRole();
/**
* Interface through which a Servlet registered via one of the addServlet
* methods on ServletContext may be further configured.
*/
public static interface Dynamic extends ServletRegistration, Registration.Dynamic {
/**
* Set the loadOnStartup order for the Servlet
*
* @param loadOnStartup The position in the order the Servlet should be
* started (higher numbers are started after lower
* numbers)
*/
public void setLoadOnStartup(int loadOnStartup);
/**
* Add security constraints to this Servlet.
*
* @param constraint new security constraints for this Servlet
*
* @return urls currently mapped to this registration that are already
* present in web.xml
*/
public Set setServletSecurity(ServletSecurityElement constraint);
/**
* Set the multi-part configuration for the associated Servlet. To clear
* the multi-part configuration specify null as the new
* value.
*
* @param multipartConfig The configuration to associate with the
* Servlet
*/
public void setMultipartConfig(MultipartConfigElement multipartConfig);
/**
* Set the name of the user / group under which the Servlet should be
* configured to run.
*
* @param roleName name of the user / group or {@code null} if none
*/
public void setRunAsRole(String roleName);
}
}