javax.servlet.ServletConfig Maven / Gradle / Ivy
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/*
* Copyright (c) 1997-2018 Oracle and/or its affiliates. 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();
}