com.sun.xml.ws.developer.servlet.HttpSessionScope Maven / Gradle / Ivy
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/*
* Copyright (c) 1997, 2019 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package com.sun.xml.ws.developer.servlet;
import com.sun.xml.ws.api.server.InstanceResolverAnnotation;
import com.sun.xml.ws.server.servlet.HttpSessionInstanceResolver;
import javax.jws.WebService;
import javax.servlet.http.HttpSession;
import javax.xml.ws.spi.WebServiceFeatureAnnotation;
import java.lang.annotation.Documented;
import static java.lang.annotation.ElementType.TYPE;
import java.lang.annotation.Retention;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
import java.lang.annotation.Target;
/**
* Designates a service class that should be tied to {@link HttpSession} scope.
*
*
* When a service class is annotated with this annotation like the following,
* the JAX-WS RI runtime will instanciate a new instance of the service class for
* each {@link HttpSession}.
*
*
* @{@link WebService}
* @{@link HttpSessionScope}
* class CounterService {
* protected int count = 0;
*
* public CounterService() {}
*
* public int inc() {
* return count++;
* }
* }
*
*
*
* This allows you to use instance fields for storing per-session state
* (in the above example, it will create a separate counter for each client.)
*
*
* The service instance will be GCed when the corresponding {@link HttpSession}
* is GCed. Refer to servlet documentation for how to configure the timeout behavior.
*
* @author Kohsuke Kawaguchi
* @since JAX-WS 2.1
*/
@Retention(RUNTIME)
@Target(TYPE)
@Documented
@WebServiceFeatureAnnotation(id=HttpSessionScopeFeature.ID, bean=HttpSessionScopeFeature.class)
@InstanceResolverAnnotation(HttpSessionInstanceResolver.class)
public @interface HttpSessionScope {
}