When a Servlet implments SingleThreadModel then the local, instance and request variables are thread safe.
Therefore, I think I could said the belowing serlvet, which implements SingleThreadModel and has a instance variable, is thread safe, right?
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import javax.servlet.*;
import javax.servlet.http.*;
public class MyServlet implements SingleThreadModel {
public String var; //Instance variable
public doGet(HttpServletRequest req, HttpServletResponse res) throws IOException, ServeltException{
.....
}
}
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But can we say the Servlet is ThreadSafe if it implements SingleThreadModel but has a "class variable"??
Like this:
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import javax.servlet.*;
import javax.servlet.http.*;
public class MyServlet implements SingleThreadModel {
static public String var; //class variable
public doGet(HttpServletRequest req, HttpServletResponse res) throws IOException, ServeltException{
.....
}
}
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Is this Servlet is ThreadSafe? Cause I think class variable is never thread-safe.
Thank you.
