X-Git-Url: https://code.wpia.club/?p=gigi.git;a=blobdiff_plain;f=lib%2Fservlet-api%2Fjavax%2Fservlet%2FSingleThreadModel.java;fp=lib%2Fservlet-api%2Fjavax%2Fservlet%2FSingleThreadModel.java;h=6e8437e45d9c0fd39997497ad723d01066c256d8;hp=0000000000000000000000000000000000000000;hb=454e6afd89d77c1005eae4838e74e82fae759668;hpb=c2ca9ecd6facc79051cca2e6d46f211dfd54c7b9 diff --git a/lib/servlet-api/javax/servlet/SingleThreadModel.java b/lib/servlet-api/javax/servlet/SingleThreadModel.java new file mode 100644 index 00000000..6e8437e4 --- /dev/null +++ b/lib/servlet-api/javax/servlet/SingleThreadModel.java @@ -0,0 +1,44 @@ +/* + * 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; + +/** + * Ensures that servlets handle only one request at a time. This interface has + * no methods. + *

+ * If a servlet implements this interface, you are guaranteed that no two + * threads will execute concurrently in the servlet's service + * method. The servlet container can make this guarantee by synchronizing access + * to a single instance of the servlet, or by maintaining a pool of servlet + * instances and dispatching each new request to a free servlet. + *

+ * Note that SingleThreadModel does not solve all thread safety issues. For + * example, session attributes and static variables can still be accessed by + * multiple requests on multiple threads at the same time, even when + * SingleThreadModel servlets are used. It is recommended that a developer take + * other means to resolve those issues instead of implementing this interface, + * such as avoiding the usage of an instance variable or synchronizing the block + * of the code accessing those resources. This interface is deprecated in + * Servlet API version 2.4. + * + * @deprecated As of Java Servlet API 2.4, with no direct replacement. + */ +@SuppressWarnings("dep-ann") +// Spec API does not use @Deprecated +public interface SingleThreadModel { + // No methods +}