org.apache.catalina
Class InstanceEvent
EventObject
org.apache.catalina.InstanceEvent
public final class InstanceEvent
extends EventObject
General event for notifying listeners of significant events related to
a specific instance of a Servlet, or a specific instance of a Filter,
as opposed to the Wrapper component that manages it.
Version:
- Craig R. McClanahan
static String | AFTER_DESTROY_EVENT - The event indicating that the
destroy() method has
returned.
|
static String | AFTER_DISPATCH_EVENT - The event indicating that the
service() method of a
servlet accessed via a request dispatcher has returned.
|
static String | AFTER_FILTER_EVENT - The event indicating that the
doFilter() method of a
Filter has returned.
|
static String | AFTER_INIT_EVENT - The event indicating that the
init() method has returned.
|
static String | AFTER_SERVICE_EVENT - The event indicating that the
service() method has
returned.
|
static String | BEFORE_DESTROY_EVENT - The event indicating that the
destroy method is about
to be called for this instance.
|
static String | BEFORE_DISPATCH_EVENT - The event indicating that the
service() method of a
servlet accessed via a request dispatcher is about to be called.
|
static String | BEFORE_FILTER_EVENT - The event indicating that the
doFilter() method of a
Filter is about to be called.
|
static String | BEFORE_INIT_EVENT - The event indicating that the
init() method is about
to be called for this instance.
|
static String | BEFORE_SERVICE_EVENT - The event indicating that the
service() method is about
to be called on a servlet.
|
InstanceEvent(Wrapper wrapper, Filter filter, String type) - Construct a new InstanceEvent with the specified parameters.
|
InstanceEvent(Wrapper wrapper, Filter filter, String type, ServletRequest request, ServletResponse response) - Construct a new InstanceEvent with the specified parameters.
|
InstanceEvent(Wrapper wrapper, Filter filter, String type, ServletRequest request, ServletResponse response, Throwable exception) - Construct a new InstanceEvent with the specified parameters.
|
InstanceEvent(Wrapper wrapper, Filter filter, String type, Throwable exception) - Construct a new InstanceEvent with the specified parameters.
|
InstanceEvent(Wrapper wrapper, Servlet servlet, String type) - Construct a new InstanceEvent with the specified parameters.
|
InstanceEvent(Wrapper wrapper, Servlet servlet, String type, ServletRequest request, ServletResponse response) - Construct a new InstanceEvent with the specified parameters.
|
InstanceEvent(Wrapper wrapper, Servlet servlet, String type, ServletRequest request, ServletResponse response, Throwable exception) - Construct a new InstanceEvent with the specified parameters.
|
InstanceEvent(Wrapper wrapper, Servlet servlet, String type, Throwable exception) - Construct a new InstanceEvent with the specified parameters.
|
Throwable | getException() - Return the exception that occurred during the processing
that was reported by this event.
|
Filter | getFilter() - Return the filter instance for which this event occurred.
|
ServletRequest | getRequest() - Return the servlet request for which this event occurred.
|
ServletResponse | getResponse() - Return the servlet response for which this event occurred.
|
Servlet | getServlet() - Return the servlet instance for which this event occurred.
|
String | getType() - Return the event type of this event.
|
Wrapper | getWrapper() - Return the Wrapper managing the servlet instance for which this
event occurred.
|
AFTER_DESTROY_EVENT
public static final String AFTER_DESTROY_EVENT
The event indicating that the destroy()
method has
returned.
AFTER_DISPATCH_EVENT
public static final String AFTER_DISPATCH_EVENT
The event indicating that the service()
method of a
servlet accessed via a request dispatcher has returned. The
servlet
property contains a reference to the
dispatched-to servlet instance, and the request
and
response
properties contain the current request and
response being processed. The wrapper
property will
contain a reference to the dispatched-to Wrapper.
AFTER_FILTER_EVENT
public static final String AFTER_FILTER_EVENT
The event indicating that the doFilter()
method of a
Filter has returned. The filter
property contains
a reference to the relevant filter instance, and the
request
and response
properties contain
the current request and response being processed.
AFTER_INIT_EVENT
public static final String AFTER_INIT_EVENT
The event indicating that the init()
method has returned.
AFTER_SERVICE_EVENT
public static final String AFTER_SERVICE_EVENT
The event indicating that the service()
method has
returned. The servlet
property contains the servlet
that was called, and the request
and
response
properties contain the current request and
response being processed.
BEFORE_DESTROY_EVENT
public static final String BEFORE_DESTROY_EVENT
The event indicating that the destroy
method is about
to be called for this instance.
BEFORE_DISPATCH_EVENT
public static final String BEFORE_DISPATCH_EVENT
The event indicating that the service()
method of a
servlet accessed via a request dispatcher is about to be called.
The servlet
property contains a reference to the
dispatched-to servlet instance, and the request
and
response
properties contain the current request and
response being processed. The wrapper
property will
contain a reference to the dispatched-to Wrapper.
BEFORE_FILTER_EVENT
public static final String BEFORE_FILTER_EVENT
The event indicating that the doFilter()
method of a
Filter is about to be called. The filter
property
contains a reference to the relevant filter instance, and the
request
and response
properties contain
the current request and response being processed.
BEFORE_INIT_EVENT
public static final String BEFORE_INIT_EVENT
The event indicating that the init()
method is about
to be called for this instance.
BEFORE_SERVICE_EVENT
public static final String BEFORE_SERVICE_EVENT
The event indicating that the service()
method is about
to be called on a servlet. The servlet
property contains
the servlet being called, and the request
and
response
properties contain the current request and
response being processed.
InstanceEvent
public InstanceEvent(Wrapper wrapper,
Filter filter,
String type)
Construct a new InstanceEvent with the specified parameters. This
constructor is used for filter lifecycle events.
wrapper
- Wrapper managing this servlet instancefilter
- Filter instance for which this event occurredtype
- Event type (required)
InstanceEvent
public InstanceEvent(Wrapper wrapper,
Filter filter,
String type,
ServletRequest request,
ServletResponse response)
Construct a new InstanceEvent with the specified parameters. This
constructor is used for filter processing events.
wrapper
- Wrapper managing this servlet instancefilter
- Filter instance for which this event occurredtype
- Event type (required)request
- Servlet request we are processingresponse
- Servlet response we are processing
InstanceEvent
public InstanceEvent(Wrapper wrapper,
Filter filter,
String type,
ServletRequest request,
ServletResponse response,
Throwable exception)
Construct a new InstanceEvent with the specified parameters. This
constructor is used for filter processing events.
wrapper
- Wrapper managing this servlet instancefilter
- Filter instance for which this event occurredtype
- Event type (required)request
- Servlet request we are processingresponse
- Servlet response we are processingexception
- Exception that occurred
InstanceEvent
public InstanceEvent(Wrapper wrapper,
Filter filter,
String type,
Throwable exception)
Construct a new InstanceEvent with the specified parameters. This
constructor is used for filter lifecycle events.
wrapper
- Wrapper managing this servlet instancefilter
- Filter instance for which this event occurredtype
- Event type (required)exception
- Exception that occurred
InstanceEvent
public InstanceEvent(Wrapper wrapper,
Servlet servlet,
String type)
Construct a new InstanceEvent with the specified parameters. This
constructor is used for processing servlet lifecycle events.
wrapper
- Wrapper managing this servlet instanceservlet
- Servlet instance for which this event occurredtype
- Event type (required)
InstanceEvent
public InstanceEvent(Wrapper wrapper,
Servlet servlet,
String type,
ServletRequest request,
ServletResponse response)
Construct a new InstanceEvent with the specified parameters. This
constructor is used for processing servlet processing events.
wrapper
- Wrapper managing this servlet instanceservlet
- Servlet instance for which this event occurredtype
- Event type (required)request
- Servlet request we are processingresponse
- Servlet response we are processing
InstanceEvent
public InstanceEvent(Wrapper wrapper,
Servlet servlet,
String type,
ServletRequest request,
ServletResponse response,
Throwable exception)
Construct a new InstanceEvent with the specified parameters. This
constructor is used for processing servlet processing events.
wrapper
- Wrapper managing this servlet instanceservlet
- Servlet instance for which this event occurredtype
- Event type (required)request
- Servlet request we are processingresponse
- Servlet response we are processingexception
- Exception that occurred
InstanceEvent
public InstanceEvent(Wrapper wrapper,
Servlet servlet,
String type,
Throwable exception)
Construct a new InstanceEvent with the specified parameters. This
constructor is used for processing servlet lifecycle events.
wrapper
- Wrapper managing this servlet instanceservlet
- Servlet instance for which this event occurredtype
- Event type (required)exception
- Exception that occurred
getException
public Throwable getException()
Return the exception that occurred during the processing
that was reported by this event.
getFilter
public Filter getFilter()
Return the filter instance for which this event occurred.
getRequest
public ServletRequest getRequest()
Return the servlet request for which this event occurred.
getResponse
public ServletResponse getResponse()
Return the servlet response for which this event occurred.
getServlet
public Servlet getServlet()
Return the servlet instance for which this event occurred.
getType
public String getType()
Return the event type of this event.
getWrapper
public Wrapper getWrapper()
Return the Wrapper managing the servlet instance for which this
event occurred.
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