SoFileSensor

java.lang.Object
- com.openinventor.inventor.Inventor
- - com.openinventor.inventor.sensors.SoSensor
  - - com.openinventor.inventor.sensors.SoTimerQueueSensor
    - - com.openinventor.inventor.sensors.SoTimerSensor
      - com.openinventor.inventor.sensors.SoFileSensor

```
public class SoFileSensor
extends SoTimerSensor
```
Sensor that triggers a callback each time a file is changed. File sensors trigger their callback function when a watched file changes. Files are checked at the interval specified with SoTimerSensor.setInterval.

See Also:

SoOneShotSensor, SoAlarmSensor, SoTimerQueueSensor, SbTime

Nested Class Summary
- Nested classes/interfaces inherited from class com.openinventor.inventor.Inventor
  Inventor.ConstructorCommand

Field Summary
- Fields inherited from class com.openinventor.inventor.Inventor
  VERBOSE_LEVEL, ZeroHandle

Constructor Summary

Constructors
Constructor Description

SoFileSensor()
Default constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addFile(java.lang.String filename)`	Add file to be monitored.
`void`	`clearFiles()`	Stop monitoring all previously registered files.
`java.lang.String`	`getFilename()`	Return changed file name.
`void`	`removeFile(java.lang.String filename)`	Remove file from monitored list.

Methods inherited from class com.openinventor.inventor.sensors.SoTimerSensor
getBaseTime, getInterval, setBaseTime, setInterval

Methods inherited from class com.openinventor.inventor.sensors.SoTimerQueueSensor
getTriggerTime

Methods inherited from class com.openinventor.inventor.sensors.SoSensor
isScheduled, schedule, setTask, unschedule

Methods inherited from class com.openinventor.inventor.Inventor
dispose, getNativeResourceHandle

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - SoFileSensor
```
public SoFileSensor()
```
    Default constructor.
- Method Detail
  - removeFile
```
public void removeFile(java.lang.String filename)
```
    Remove file from monitored list. If file is not being monitored, the method does nothing.
  - clearFiles
```
public void clearFiles()
```
    Stop monitoring all previously registered files.
  - addFile
```
public void addFile(java.lang.String filename)
```
    Add file to be monitored. If file does not exist, the method does nothing.
  - getFilename
```
public java.lang.String getFilename()
```
    Return changed file name.
    Note: Only valid when called from the callback function.