javax.servlet.ServletConfig Maven / Gradle / Ivy
/*
* Copyright (c) 1997-2018 Oracle and/or its affiliates and others.
* All rights reserved.
* Copyright 2004 The Apache Software Foundation
*
* Licensed 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 javax.servlet;
import java.util.Enumeration;
/**
* A servlet configuration object used by a servlet container to pass information to a servlet during initialization.
*/
public interface ServletConfig {
/**
* Returns the name of this servlet instance. The name may be provided via server administration, assigned in the
* web application deployment descriptor, or for an unregistered (and thus unnamed) servlet instance it will be the
* servlet's class name.
*
* @return the name of the servlet instance
*/
public String getServletName();
/**
* Returns a reference to the {@link ServletContext} in which the caller is executing.
*
* @return a {@link ServletContext} object, used by the caller to interact with its servlet container
*
* @see ServletContext
*/
public ServletContext getServletContext();
/**
* Gets the value of the initialization parameter with the given name.
*
* @param name the name of the initialization parameter whose value to get
*
* @return a String containing the value of the initialization parameter, or null if the
* initialization parameter does not exist
*/
public String getInitParameter(String name);
/**
* Returns the names of the servlet's initialization parameters as an Enumeration of
* String objects, or an empty Enumeration if the servlet has no initialization
* parameters.
*
* @return an Enumeration of String objects containing the names of the servlet's
* initialization parameters
*/
public Enumeration getInitParameterNames();
}