/**
* Refreshes the properties of this Partition object instance with values from the AFS partition
* it represents. If <CODE>all</CODE> is <CODE>true</CODE> then <U>all</U> of the properties of
* this Partition object instance will be set, or renewed, according to the values of the AFS
* partition it represents, disregarding any previously set properties.
*
* <p>Thus, if <CODE>all</CODE> is <CODE>false</CODE> then properties that are currently set will
* be refreshed and properties that are not set will remain uninitialized. See {@link #refresh()}
* for more information.
*
* @param all if true set or renew all object properties; otherwise renew all set properties
* @exception AFSException If an error occurs in the native code
* @see #refresh()
*/
protected void refresh(boolean all) throws AFSException {
if (all || volumes != null) {
refreshVolumes();
}
if (all || volumeNames != null) {
refreshVolumeNames();
}
if (all || cachedInfo) {
refreshInfo();
}
}
/**
* Returns the total used space on this partition. After this method is called once, it saves the
* total used space and returns that value on subsequent calls, until the {@link #refresh()}
* method is called and a more current value is obtained.
*
* @exception AFSException If an error occurs in the native code
* @return the total used space on this partition
* @see #refresh()
*/
public int getUsedSpace() throws AFSException {
if (!cachedInfo) refreshInfo();
return (totalSpace - totalFreeSpace);
}
/**
* Returns the total free space on this partition. After this method is called once, it saves the
* total free space and returns that value on subsequent calls, until the {@link #refresh()}
* method is called and a more current value is obtained.
*
* @exception AFSException If an error occurs in the native code
* @return the total free space on this partition
* @see #refresh()
*/
public int getTotalFreeSpace() throws AFSException {
if (!cachedInfo) refreshInfo();
return totalFreeSpace;
}
/**
* Returns the lock file descriptor of this partition
*
* @exception AFSException If an error occurs in the native code
* @return the lock file descriptor of this partition
* @see #refresh()
*/
public int getLockFileDescriptor() throws AFSException {
if (!cachedInfo) refreshInfo();
return lockFileDescriptor;
}
/**
* Returns the device name of this partition (i.e. "hda5", etc.)
*
* @exception AFSException If an error occurs in the native code
* @return the device name of this partition
* @see #refresh()
*/
public String getDeviceName() throws AFSException {
if (!cachedInfo) refreshInfo();
return deviceName;
}