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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 int	getUnavailableSeconds() Returns the time in seconds for which the portlet can be expected to be unavailable.
public boolean	isPermanent() 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; `false`if 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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