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InstanceEvent (Catalina Internal API Documentation)

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org.apache.catalina
Class InstanceEvent


java.lang.Object

  |

  +--java.util.EventObject

        |

        +--org.apache.catalina.InstanceEvent

All Implemented Interfaces:: java.io.Serializable

public final class InstanceEvent
extends java.util.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:: $Revision: 1.6.2.1 $ $Date: 2001/10/12 01:57:41 $
Author:: Craig R. McClanahan
See Also:: Serialized Form

Field Summary

static java.lang.String AFTER_DESTROY_EVENT
          The event indicating that the destroy() method has returned.

static java.lang.String AFTER_DISPATCH_EVENT
          The event indicating that the service() method of a servlet accessed via a request dispatcher has returned.

static java.lang.String AFTER_FILTER_EVENT
          The event indicating that the doFilter() method of a Filter has returned.

static java.lang.String AFTER_INIT_EVENT
          The event indicating that the init() method has returned.

static java.lang.String AFTER_SERVICE_EVENT
          The event indicating that the service() method has returned.

static java.lang.String BEFORE_DESTROY_EVENT
          The event indicating that the destroy method is about to be called for this instance.

static java.lang.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 java.lang.String BEFORE_FILTER_EVENT
          The event indicating that the doFilter() method of a Filter is about to be called.

static java.lang.String BEFORE_INIT_EVENT
          The event indicating that the init() method is about to be called for this instance.

static java.lang.String BEFORE_SERVICE_EVENT
          The event indicating that the service() method is about to be called on a servlet.

Fields inherited from class java.util.EventObject

source

Constructor Summary

InstanceEvent(Wrapper wrapper, javax.servlet.Filter filter, java.lang.String type)
          Construct a new InstanceEvent with the specified parameters.

InstanceEvent(Wrapper wrapper, javax.servlet.Filter filter, java.lang.String type, javax.servlet.ServletRequest request, javax.servlet.ServletResponse response)
          Construct a new InstanceEvent with the specified parameters.

InstanceEvent(Wrapper wrapper, javax.servlet.Filter filter, java.lang.String type, javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, java.lang.Throwable exception)
          Construct a new InstanceEvent with the specified parameters.

InstanceEvent(Wrapper wrapper, javax.servlet.Filter filter, java.lang.String type, java.lang.Throwable exception)
          Construct a new InstanceEvent with the specified parameters.

InstanceEvent(Wrapper wrapper, javax.servlet.Servlet servlet, java.lang.String type)
          Construct a new InstanceEvent with the specified parameters.

InstanceEvent(Wrapper wrapper, javax.servlet.Servlet servlet, java.lang.String type, javax.servlet.ServletRequest request, javax.servlet.ServletResponse response)
          Construct a new InstanceEvent with the specified parameters.

InstanceEvent(Wrapper wrapper, javax.servlet.Servlet servlet, java.lang.String type, javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, java.lang.Throwable exception)
          Construct a new InstanceEvent with the specified parameters.

InstanceEvent(Wrapper wrapper, javax.servlet.Servlet servlet, java.lang.String type, java.lang.Throwable exception)
          Construct a new InstanceEvent with the specified parameters.

Method Summary

java.lang.Throwable getException()
          Return the exception that occurred during the processing that was reported by this event.

javax.servlet.Filter getFilter()
          Return the filter instance for which this event occurred.

javax.servlet.ServletRequest getRequest()
          Return the servlet request for which this event occurred.

javax.servlet.ServletResponse getResponse()
          Return the servlet response for which this event occurred.

javax.servlet.Servlet getServlet()
          Return the servlet instance for which this event occurred.

java.lang.String getType()
          Return the event type of this event.

Wrapper getWrapper()
          Return the Wrapper managing the servlet instance for which this event occurred.

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

BEFORE_INIT_EVENT


public static final java.lang.String BEFORE_INIT_EVENT

The event indicating that the init() method is about to be called for this instance.

See Also:: Constant Field Values

AFTER_INIT_EVENT


public static final java.lang.String AFTER_INIT_EVENT

The event indicating that the init() method has returned.

See Also:: Constant Field Values

BEFORE_SERVICE_EVENT


public static final java.lang.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.

See Also:: Constant Field Values

AFTER_SERVICE_EVENT


public static final java.lang.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.

See Also:: Constant Field Values

BEFORE_DESTROY_EVENT


public static final java.lang.String BEFORE_DESTROY_EVENT

The event indicating that the destroy method is about to be called for this instance.

See Also:: Constant Field Values

AFTER_DESTROY_EVENT


public static final java.lang.String AFTER_DESTROY_EVENT

The event indicating that the destroy() method has returned.

See Also:: Constant Field Values

BEFORE_DISPATCH_EVENT


public static final java.lang.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.

See Also:: Constant Field Values

AFTER_DISPATCH_EVENT


public static final java.lang.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.

See Also:: Constant Field Values

BEFORE_FILTER_EVENT


public static final java.lang.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.

See Also:: Constant Field Values

AFTER_FILTER_EVENT


public static final java.lang.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.

See Also:: Constant Field Values

Constructor Detail

InstanceEvent


public InstanceEvent(Wrapper wrapper,
                     javax.servlet.Filter filter,
                     java.lang.String type)

Construct a new InstanceEvent with the specified parameters. This constructor is used for filter lifecycle events.
Parameters:: wrapper - Wrapper managing this servlet instance; filter - Filter instance for which this event occurred; type - Event type (required)

InstanceEvent


public InstanceEvent(Wrapper wrapper,
                     javax.servlet.Filter filter,
                     java.lang.String type,
                     java.lang.Throwable exception)

Construct a new InstanceEvent with the specified parameters. This constructor is used for filter lifecycle events.
Parameters:: wrapper - Wrapper managing this servlet instance; filter - Filter instance for which this event occurred; type - Event type (required); exception - Exception that occurred

InstanceEvent


public InstanceEvent(Wrapper wrapper,
                     javax.servlet.Filter filter,
                     java.lang.String type,
                     javax.servlet.ServletRequest request,
                     javax.servlet.ServletResponse response)

Construct a new InstanceEvent with the specified parameters. This constructor is used for filter processing events.
Parameters:: wrapper - Wrapper managing this servlet instance; filter - Filter instance for which this event occurred; type - Event type (required); request - Servlet request we are processing; response - Servlet response we are processing

InstanceEvent


public InstanceEvent(Wrapper wrapper,
                     javax.servlet.Filter filter,
                     java.lang.String type,
                     javax.servlet.ServletRequest request,
                     javax.servlet.ServletResponse response,
                     java.lang.Throwable exception)

Construct a new InstanceEvent with the specified parameters. This constructor is used for filter processing events.
Parameters:: wrapper - Wrapper managing this servlet instance; filter - Filter instance for which this event occurred; type - Event type (required); request - Servlet request we are processing; response - Servlet response we are processing; exception - Exception that occurred

InstanceEvent


public InstanceEvent(Wrapper wrapper,
                     javax.servlet.Servlet servlet,
                     java.lang.String type)

Construct a new InstanceEvent with the specified parameters. This constructor is used for processing servlet lifecycle events.
Parameters:: wrapper - Wrapper managing this servlet instance; servlet - Servlet instance for which this event occurred; type - Event type (required)

InstanceEvent


public InstanceEvent(Wrapper wrapper,
                     javax.servlet.Servlet servlet,
                     java.lang.String type,
                     java.lang.Throwable exception)

Construct a new InstanceEvent with the specified parameters. This constructor is used for processing servlet lifecycle events.
Parameters:: wrapper - Wrapper managing this servlet instance; servlet - Servlet instance for which this event occurred; type - Event type (required); exception - Exception that occurred

InstanceEvent


public InstanceEvent(Wrapper wrapper,
                     javax.servlet.Servlet servlet,
                     java.lang.String type,
                     javax.servlet.ServletRequest request,
                     javax.servlet.ServletResponse response)

Construct a new InstanceEvent with the specified parameters. This constructor is used for processing servlet processing events.
Parameters:: wrapper - Wrapper managing this servlet instance; servlet - Servlet instance for which this event occurred; type - Event type (required); request - Servlet request we are processing; response - Servlet response we are processing

InstanceEvent


public InstanceEvent(Wrapper wrapper,
                     javax.servlet.Servlet servlet,
                     java.lang.String type,
                     javax.servlet.ServletRequest request,
                     javax.servlet.ServletResponse response,
                     java.lang.Throwable exception)

Construct a new InstanceEvent with the specified parameters. This constructor is used for processing servlet processing events.
Parameters:: wrapper - Wrapper managing this servlet instance; servlet - Servlet instance for which this event occurred; type - Event type (required); request - Servlet request we are processing; response - Servlet response we are processing; exception - Exception that occurred

Method Detail

getException


public java.lang.Throwable getException()

Return the exception that occurred during the processing that was reported by this event.

getFilter


public javax.servlet.Filter getFilter()

Return the filter instance for which this event occurred.

getRequest


public javax.servlet.ServletRequest getRequest()

Return the servlet request for which this event occurred.

getResponse


public javax.servlet.ServletResponse getResponse()

Return the servlet response for which this event occurred.

getServlet


public javax.servlet.Servlet getServlet()

Return the servlet instance for which this event occurred.

getType


public java.lang.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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SUMMARY: NESTED | FIELD | CONSTR | METHOD

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org.apache.catalina Class InstanceEvent

BEFORE_INIT_EVENT

AFTER_INIT_EVENT

BEFORE_SERVICE_EVENT

AFTER_SERVICE_EVENT

BEFORE_DESTROY_EVENT

AFTER_DESTROY_EVENT

BEFORE_DISPATCH_EVENT

AFTER_DISPATCH_EVENT

BEFORE_FILTER_EVENT

AFTER_FILTER_EVENT

InstanceEvent

InstanceEvent

InstanceEvent

InstanceEvent

InstanceEvent

InstanceEvent

InstanceEvent

InstanceEvent

getException

getFilter

getRequest

getResponse

getServlet

getType

getWrapper

org.apache.catalina
Class InstanceEvent