DataSetObserver

Class Overview

Receives call backs when a data set has been changed, or made invalid. The typically data sets that are observed are


        
         Cursor

s or


        
         Adapter

s. DataSetObserver must be implemented by objects which are added to a DataSetObservable.

Summary

Public Constructors
	DataSetObserver ()

Public Constructors

DataSetObserver ()

Public Methods
void	onChanged () This method is called when the entire data set has changed, most likely through a call to `requery()` on a `Cursor` .
void	onInvalidated () This method is called when the entire data becomes invalid, most likely through a call to `deactivate()` or `close()` on a `Cursor` .

Public Methods

void

onChanged ()

This method is called when the entire data set has changed, most likely through a call to


           
            requery()

on a


           
            Cursor

void

onInvalidated ()

This method is called when the entire data becomes invalid, most likely through a call to


           
            deactivate()


           
            close()

on a


           
            Cursor

Inherited Methods

Object	clone () Creates and returns a copy of this `Object` .
boolean	equals ( Object o) Compares this instance with the specified object and indicates if they are equal.
void	finalize () Invoked when the garbage collector has detected that this instance is no longer reachable.
final Class <?>	getClass () Returns the unique instance of `Class` that represents this object's class.
int	hashCode () Returns an integer hash code for this object.
final void	notify () Causes a thread which is waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
final void	notifyAll () Causes all threads which are waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
String	toString () Returns a string containing a concise, human-readable description of this object.
final void	wait () Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object.
final void	wait (long millis, int nanos) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.
final void	wait (long millis) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.

Public Methods

Added in API level 1

This method is called when the entire data set has changed, most likely through a call to requery() on a Cursor .

Added in API level 1

This method is called when the entire data becomes invalid, most likely through a call to deactivate() or close() on a Cursor .

Results

java.lang.Object
↳	android.database.DataSetObserver