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Registration.java
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94 lines (84 loc) · 3.56 KB
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/*
* 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 javax.servlet;
import java.util.Map;
import java.util.Set;
/**
* Common interface for the registration of Filters and Servlets.
* @since Servlet 3.0
*/
public interface Registration {
public String getName();
public String getClassName();
/**
* Add an initialisation parameter if not already added.
*
* @param name Name of initialisation parameter
* @param value Value of initialisation parameter
* @return <code>true</code> if the initialisation parameter was set,
* <code>false</code> if the initialisation parameter was not set
* because an initialisation parameter of the same name already
* existed
* @throws IllegalArgumentException if name or value is <code>null</code>
* @throws IllegalStateException if the ServletContext associated with this
* registration has already been initialised
*/
public boolean setInitParameter(String name, String value);
/**
* Get the value of an initialisation parameter.
*
* @param name The initialisation parameter whose value is required
*
* @return The value of the named initialisation parameter
*/
public String getInitParameter(String name);
/**
* Add multiple initialisation parameters. If any of the supplied
* initialisation parameter conflicts with an existing initialisation
* parameter, no updates will be performed.
*
* @param initParameters The initialisation parameters to add
*
* @return The set of initialisation parameter names that conflicted with
* existing initialisation parameter. If there are no conflicts,
* this Set will be empty.
* @throws IllegalArgumentException if any of the supplied initialisation
* parameters have a null name or value
* @throws IllegalStateException if the ServletContext associated with this
* registration has already been initialised
*/
public Set<String> setInitParameters(Map<String,String> initParameters);
/**
* Get the names and values of all the initialisation parameters.
*
* @return A Map of initialisation parameter names and associated values
* keyed by name
*/
public Map<String, String> getInitParameters();
public interface Dynamic extends Registration {
/**
* Mark this Servlet/Filter as supported asynchronous processing.
*
* @param isAsyncSupported Should this Servlet/Filter support
* asynchronous processing
*
* @throws IllegalStateException if the ServletContext associated with
* this registration has already been initialised
*/
public void setAsyncSupported(boolean isAsyncSupported);
}
}