Team2890/allwpilib
4
0
Fork 0
mirror of https://github.com/wpilibsuite/allwpilib synced 2026-06-25 01:41:43 +00:00
Code Issues Packages Projects Releases Wiki Activity

Automatically set persistent on new Preferences keys.

Browse Source 
This improves interoperability with old dashboards as it enables new
Preferences keys to be added from an old dashboard and still be
automatically saved.

Change-Id: I51e988006f8fa4fd780fac34f47633a9727f31e0
This commit is contained in:
Peter Johnson
2015-10-03 09:04:38 -07:00
committed by Brad Miller (WPI)
parent f93bf82fa9
commit 87fc49c66d
3 changed files with 36 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
wpilibj/wpilibJavaDevices/src/main/java/edu/wpi/first/wpilibj/Preferences.java
View File

@@ -11,6 +11,8 @@ import java.util.Vector;
import edu.wpi.first.wpilibj.communication.FRCNetworkCommunicationsLibrary.tResourceType;
import edu.wpi.first.wpilibj.communication.UsageReporting;
import edu.wpi.first.wpilibj.networktables.NetworkTable;
import edu.wpi.first.wpilibj.tables.ITable;
import edu.wpi.first.wpilibj.tables.ITableListener;
import edu.wpi.first.wpilibj.tables.TableKeyNotDefinedException;
/**
@@ -48,6 +50,20 @@ public class Preferences {
* The network table
*/
private NetworkTable table;
/**
* Listener to set all Preferences values to persistent (for backwards
* compatibility with old dashboards).
*/
private final ITableListener listener = new ITableListener() {
@Override
public void valueChanged(ITable table, String key, Object value, boolean isNew) {
// unused
}
@Override
public void valueChangedEx(ITable table, String key, Object value, int flags) {
table.setPersistent(key);
}
};
/**
* Returns the preferences instance.
@@ -66,6 +82,7 @@ public class Preferences {
*/
private Preferences() {
table = NetworkTable.getTable(TABLE_NAME);
table.addTableListenerEx(listener, ITable.NOTIFY_NEW | ITable.NOTIFY_IMMEDIATE);
UsageReporting.report(tResourceType.kResourceType_Preferences, 0);
}