locking

I have seen a question on here about this however it was old so I will ask again in case a solution now exists. My issue is this. I have a database table which I wish to select from but I want to lock the rows that I have selected. The reason for this is that I may have another process running that will also want to select the same rows and I want to prevent this. Imagine I have two processes doing the same thing. One performs a select and begins to perform its processing of the data. Then a few seconds later the next process comes along and does a select but because the rows aren't locked it

By lock helpers I am referring to disposable objects with which locking can be implemented via using statements. For example, consider a typical usage of the SyncLock class from Jon Skeet's MiscUtil : public class Example { private readonly SyncLock _padlock; public Example() { _padlock = new SyncLock(); } public void ConcurrentMethod() { using (_padlock.Lock()) { // Now own the padlock - do concurrent stuff } } } Now, consider the following usage: var example = new Example(); new Thread(example.ConcurrentMethod).Start(); My question is this - since example is created on one thread and

i need to check if the lockscreen does have a Pin or something more secure (Password, Fingerprint etc.). Im able to check if there is a Pin, Password or a Pattern. KeyguardManager keyguardManager = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE); return keyguardManager.isKeyguardSecure(); My Problem is that i cant detect if the lockscreen is a Pattern or something lower. I tried this: int lockPatternEnable = Settings.Secure.getInt(cr, Settings.Secure.LOCK_PATTERN_ENABLED); but its deprecated and throws me an error. I also tried this: long mode2 = Settings.Secure.getLong

I want to write the code on how to unlock the Android Phone programmatically. I want lock or unlock the phone when the user taps the proximity sensor. public class MyActivity extends Activity{ private static final String ACTION = "android.intent.action.ACTION_SCREEN_OFF"; BroadcastReceiver myReceiver; Context context; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); context = this; final IntentFilter theFilter = new IntentFilter(); theFilter.addAction(ACTION); context.registerReceiver(myReceiver, theFilter);