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ilog.webui.dhtml
Class IlxWControllerError

java.lang.Object
  ilog.webui.dhtml.IlxWControllerError

public class IlxWControllerError
extends Object

Controller errors. A controller error is passed to the method IlxWController.handleError(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, ilog.webui.dhtml.IlxWControllerError, java.lang.String) when an error is encountered during execution of the method IlxWController.service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse). There are four types of controller errors (see getType()):

• ERROR_SESSIONTIMEOUT: triggered by the service method of the controller servlet if the last session has expired. This will typically happen if a user tries to perform an action on a web component displayed in an HTML page and if the HTTP session that was used to generate the page has expired. In this case, the getRootCause() method returns null.
• ERROR_IOEXCEPTION: if an IOException occurs while printing data to the response output stream. In this case, the method getRootCause() returns the corresponding java.io.IOException instance.
• ERROR_COMPONENTEXCEPTION: if an IlxWRuntimeException occurs because of a bad manipulation of a web component. In this case, the method getRootCause() returns the corresponding ilog.webui.dhtml.IlxWRuntimeException instance.
• ERROR_OTHER: for any other types of throwable error. For instance, trying to add a component in two different containers (see IlxWContainer.add(ilog.webui.dhtml.IlxWComponent)) may produce a java.lang.IllegalStateException instance. In this case, the method getRootCause() returns the corresponding java.lang.Exception instance.

Field Summary

static int	ERROR_COMPONENTEXCEPTION
static int	ERROR_IOEXCEPTION
static int	ERROR_OTHER
static int	ERROR_SESSIONTIMEOUT

Method Summary

String	getMessage() Gets the message associated with this error.
Throwable	getRootCause() Returns the error that caused this controller error.
int	getType() Gets the type of the error.

Methods inherited from class java.lang.Object

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

Field Detail

ERROR_SESSIONTIMEOUT

public static final int ERROR_SESSIONTIMEOUT

See Also:

Constant Field Values

ERROR_IOEXCEPTION

public static final int ERROR_IOEXCEPTION

See Also:

Constant Field Values

ERROR_COMPONENTEXCEPTION

public static final int ERROR_COMPONENTEXCEPTION

See Also:

Constant Field Values

ERROR_OTHER

public static final int ERROR_OTHER

See Also:

Constant Field Values

Method Detail

getMessage

public String getMessage()

Gets the message associated with this error.

getType

public int getType()

Gets the type of the error.

getRootCause

public Throwable getRootCause()

Returns the error that caused this controller error.

Returns:

The Throwable that caused this controller error. May be null.