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Java Source Code / Java Documentation » Portal » Open Portal » javax.portlet 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   java.lang.Throwable
      java.lang.Exception
         javax.portlet.PortletException
            javax.portlet.UnavailableException

UnavailableException
public class UnavailableException extends PortletException (Code)
The portlet should throw the UnavailableException when the portlet is either temporarily or permanently unavailable to handle requests.



Constructor Summary
public  UnavailableException(String text)
     Constructs a new exception with a descriptive message indicating that the portlet is permanently unavailable.
public  UnavailableException(String text, int seconds)
     Constructs a new exception with a descriptive message indicating that the portlet is temporarily unavailable and giving an estimate of how long it will be unavailable.

In some cases, the portlet cannot make an estimate.


Method Summary
public  intgetUnavailableSeconds()
     Returns the time in seconds for which the portlet can be expected to be unavailable.
public  booleanisPermanent()
     Returns a boolean indicating whether the portlet is permanently unavailable.


Constructor Detail
UnavailableException
public UnavailableException(String text)(Code)
Constructs a new exception with a descriptive message indicating that the portlet is permanently unavailable.
Parameters:
  text - a String specifying thedescriptive message



UnavailableException
public UnavailableException(String text, int seconds)(Code)
Constructs a new exception with a descriptive message indicating that the portlet is temporarily unavailable and giving an estimate of how long it will be unavailable.

In some cases, the portlet cannot make an estimate. For example, the portlet might know that a server it needs is not running, but it might not be able to report how long it will take to be restored to functionality. This can be indicated with a negative or zero value for the seconds argument.
Parameters:
  text - a String specifying thedescriptive message. This message can be writtento a log file or displayed for the user.
Parameters:
  seconds - an integer specifying the number of secondsfor which the portlet expects to be unavailable; ifthis is zero or negative, it indicates that the portletcannot make an estimate.





Method Detail
getUnavailableSeconds
public int getUnavailableSeconds()(Code)
Returns the time in seconds for which the portlet can be expected to be unavailable.

If the portlet is called again while it is still unavailable, it indicates the same time estimate. No effort is made to correct for the time elapsed since the exception was first reported.

If this method returns zero or a negative number, the portlet is permanently unavailable or cannot provide an estimate of how long it will be unavailable. an integer specifying the number of secondsthe portlet will be temporarily unavailable,or zero or a negative number if the portlet is permanentlyunavailable or cannot make an estimate.




isPermanent
public boolean isPermanent()(Code)
Returns a boolean indicating whether the portlet is permanently unavailable. If so, something is wrong with the portlet, and the system administrator must take some corrective action. true if the portlet ispermanently unavailable; falseif the portlet is temporarilyunavailable.



Methods inherited from javax.portlet.PortletException
public Throwable getCause()(Code)(Java Doc)
public void printStackTrace()(Code)(Java Doc)
public void printStackTrace(java.io.PrintStream out)(Code)(Java Doc)
public void printStackTrace(java.io.PrintWriter out)(Code)(Java Doc)


Methods inherited from java.lang.Throwable
native public synchronized Throwable fillInStackTrace()(Code)(Java Doc)
public Throwable getCause()(Code)(Java Doc)
public String getLocalizedMessage()(Code)(Java Doc)
public String getMessage()(Code)(Java Doc)
public StackTraceElement[] getStackTrace()(Code)(Java Doc)
public synchronized Throwable initCause(Throwable cause)(Code)(Java Doc)
public void printStackTrace()(Code)(Java Doc)
public void printStackTrace(PrintStream s)(Code)(Java Doc)
public void printStackTrace(PrintWriter s)(Code)(Java Doc)
public void setStackTrace(StackTraceElement[] stackTrace)(Code)(Java Doc)
public String toString()(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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