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| java.lang.Object
 javax.servlet.GenericServlet
javax.script.http.HttpScriptServlet
| HttpScriptServlet | | abstract public class HttpScriptServlet extends GenericServlet (Code) | | A HttpScriptServlet uses a ScriptEngine supplied by
calling its getEngine method to execute a script in a
HttpScriptContext returned by its getContext method.
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| Method Summary | |
| abstract public HttpScriptContext | getContext(HttpServletRequest req, HttpServletResponse res)
Returns a HttpScriptContext initialized using the specified
HttpServletRequest, HttpServletResponse and a
reference to this HttpScriptServlet
Parameters:
req - The specified HttpServletRequest.
Parameters:
res - The specified HttpServletResponse. | | abstract public ScriptEngine | getEngine(HttpServletRequest request)
Returns a ScriptEngine that is used by the HttpScriptServlet
to execute a single request.
The implementation must ensure that if the same engine is used to service
requests concurrently on multiple threads that side-effects of script execution
on any thread will not be visible in the engine scopes of other threads. | | abstract public void | releaseEngine(ScriptEngine engine)
Called to indicate that a ScriptEngine retruned by a call to
getEngine is no longer in use. | | public void | service(ServletRequest req, ServletResponse res)
Executes a request using the HttpScriptContext returned by
getContext and the ScriptEngine returned by
getEngine.
A default implementation is provided:
Parameters:
req - The current request. |
| getEngine | | abstract public ScriptEngine getEngine(HttpServletRequest request)(Code) | | Returns a ScriptEngine that is used by the HttpScriptServlet
to execute a single request.
The implementation must ensure that if the same engine is used to service
requests concurrently on multiple threads that side-effects of script execution
on any thread will not be visible in the engine scopes of other threads. This
will be the case if the returned ScriptEngine implements a class
associated with a ScriptEngineInfo where either
getParameter("THREAD-ISOLATED") or getParameter("STATELESS") returns
java.lang.Boolean.TRUE.
Parameters:
request - The current request. The ScriptEngine used by this HttpScriptServlet toexecute requests. |
| releaseEngine | | abstract public void releaseEngine(ScriptEngine engine)(Code) | | Called to indicate that a ScriptEngine retruned by a call to
getEngine is no longer in use.
Parameters:
engine - The ScriptEngine |
| service | | public void service(ServletRequest req, ServletResponse res) throws ServletException, IOException(Code) | | Executes a request using the HttpScriptContext returned by
getContext and the ScriptEngine returned by
getEngine.
A default implementation is provided:
Parameters:
req - The current request. Must be an instance of HttpServletRequest.
Parameters:
res - The current response. Must be an instance of HttpServletResponse.
throws:
IllegalArgumentException - If either req is not an instance of HttpServletRequestor res is not an instance of HttpServletResponse
throws:
ServletException -
throws:
IOException - |
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