All Libraries | This Library | Package | Class | Use | Tree | Deprecated | Index | Grand Index | Help
|  | Components |
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

## com.sas.util
Class Timer

    com.sas.util.Timer

All Implemented Interfaces:
  com.sas.beans.PropertyChangeSource, com.sas.beans.VetoableChangeSource, com.sas.ComponentInterface, com.sas.LinkPropertiesInterface, com.sas.ModelInterface, com.sas.util.TimeIntervals, TimerInterface, com.sas.ViewInterface, MultipleValueEventSourceInterface, java.beans.PropertyChangeListener, java.io.ObjectInputValidation, java.io.Serializable, java.util.EventListener

    public class Timer

implements TimerInterface

A timer for recording time intervals. All time units are measured in milliseconds. This simple timer class is used for measuring a duration of time; i.e. measure how much time an action takes to execute. For example, an application which executes long operation such as downloading a video from a remote site may use a timer to record how long the download takes and update a status display with the timer duration at regular intervals.

- startTime in TimerInterface
- stopTime in TimerInterface
- running in TimerInterface
- duration in TimerInterface

See Also:
  `Alarm`, Serialized Form

Field Summary
`static java.lang.String` | `RB_KEY`
`static java.lang.Long` | `Zero` A Long integer with the value 0. used in event notification;

Fields inherited from interface com.sas.util.TimeIntervals
`ONE_DAY, ONE_HOUR, ONE_MINUTE, ONE_SECOND, ONE_WEEK`

Constructor Summary
`Timer()`

Method Summary
`boolean` | `equals(java.lang.Object object)` Test object equality.
`boolean` | `equals(Timer t)` Test object equality.
`long` | `getDuration()` Return the number of milliseconds this timer has been running.
`static com.sas.beans.ExtendedBeanInfo` | `getExtendedBeanInfo()`
`long` | `getStartTime()` Return this timer's start time.
`long` | `getStopTime()` Return this timer's stop time.
`int` | `hashCode()` Compute a hash code.
`boolean` | `isRunning()` Test if a timer is running.
`void` | `setRunning(boolean running)` Set the state of the boolean running property.
`void` | `start()` Start this timer.
`void` | `stop()` Stop this timer.
`java.lang.String` | `toString()` Generate a string representation of this timer.

Field Detail

### RB_KEY

    public static final java.lang.String RB_KEY

See Also:
  Constant Field Values

### Zero

    public static java.lang.Long Zero

  A Long integer with the value 0. used in event notification;

Constructor Detail

### Timer

    public Timer()

Method Detail

### getExtendedBeanInfo

    public static com.sas.beans.ExtendedBeanInfo getExtendedBeanInfo()

### equals

    public boolean equals(java.lang.Object object)

  Test object equality.

  Overrides:
    `equals` in class `java.lang.Object`
  Parameters:
    `object` - another object
  Returns:
    `true` if the other object is a `Timer` and it has the same `startTime`, `stopTime`, and `running` status.

### equals

    public boolean equals(Timer t)

  Test object equality.

  Parameters:
    `t` - another `Timer` object
  Returns:
    `true` if t has the same startTime, stopTime, and running status.

### hashCode

    public int hashCode()

  Compute a hash code.

  Overrides:
    `hashCode` in class `java.lang.Object`
  Returns:
    a hash code. Note, since timer objects are mutable, they do not make good candidates for hashtable/dictionary keys.

### start

    public void start()

  Start this timer. This sets its state to running and resets the startTime to the current time. If this timer is already running, it is restarted.

  Specified by:
    `start` in interface `TimerInterface`

### stop

    public void stop()

  Stop this timer. The timer is no longer running; the stop time does not advance. If called on a timer that is not running, it is ignored.

  Specified by:
    `stop` in interface `TimerInterface`

### isRunning

    public boolean isRunning()

  Test if a timer is running.

  Specified by:
    `isRunning` in interface `TimerInterface`
  Returns:
    `true` if `stop()` has not been called since `start()` was last called; `false` otherwise.

### getStartTime

    public long getStartTime()

  Return this timer's start time.

  Specified by:
    `getStartTime` in interface `TimerInterface`
  Returns:
    the time this timer was last started, in number of milliseconds since the Epoch returns 0 if not yet started.

### getStopTime

    public long getStopTime()

  Return this timer's stop time.

  Specified by:
    `getStopTime` in interface `TimerInterface`
  Returns:
    the time this timer was stopped, in number of milliseconds since the Epoch returns 0 if this timer has not stopped since it was last started.

### getDuration

    public long getDuration()

  Return the number of milliseconds this timer has been running. If this timer has been stopped, this is the difference bewteen the stop time and the start time. If this timer has not been stopped, this is the difference bewteen the current time and the start time. If this timer has never been started, return 0.

  Specified by:
    `getDuration` in interface `TimerInterface`
  Returns:
    the number of milliseconds this timer has been running. If this timer has been stopped, this is the difference between the stop time and the start time. If this timer has not been stopped, this is the difference between the current time and the start time. If this timer has never been started, return 0.

### setRunning

    public final void setRunning(boolean running)

  Set the state of the boolean running property.

  Specified by:
    `setRunning` in interface `TimerInterface`
  Parameters:
    `running` - the new running state. If this is the same as the current state, nothing happens. Otherwise, if `true`, then call `start()`, else call `stop()`. This method is an alias for calling `start` and `stop`, and is therefore `final`. If you override a `Timer`, you shuld override those methods to change behavior.

### toString

    public java.lang.String toString()

  Generate a string representation of this timer.

  Overrides:
    `toString` in class `java.lang.Object`
  Returns:
    a string representation of this timer.

All Libraries | This Library | Package | Class | Use | Tree | Deprecated | Index | Grand Index | Help
|  | Components |
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

Copyright © 2009 SAS Institute Inc. All Rights Reserved.