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replace array[1] with HashSet to support more than one db change listener

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This commit is contained in:
Andy2 2011-02-28 05:41:02 -08:00
parent c31e964ce4
commit b57b6b1b31
1 changed files with 17 additions and 6 deletions
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23
xwords4/android/XWords4/src/org/eehouse/android/xw4/DBUtils.java
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@ -28,6 +28,8 @@ import java.util.StringTokenizer;
import android.content.ContentValues;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashSet;
import java.util.Iterator;
import junit.framework.Assert;
import org.eehouse.android.xw4.jni.*;
@ -38,8 +40,8 @@ public class DBUtils {
public static interface DBChangeListener {
public void pathSaved( String path );
}
private static DBChangeListener[] s_listeners =
new DBChangeListener[]{ null };
private static HashSet<DBChangeListener> s_listeners =
new HashSet<DBChangeListener>();
private static SQLiteOpenHelper s_dbHelper = null;
@ -569,8 +571,16 @@ public class DBUtils {
public static void setDBChangeListener( DBChangeListener listener )
{
synchronized( s_listeners ) {
Assert.assertTrue( listener != s_listeners[0] );
s_listeners[0] = listener;
Assert.assertNotNull( listener );
s_listeners.add( listener );
}
}
public static void clearDBChangeListener( DBChangeListener listener )
{
synchronized( s_listeners ) {
Assert.assertTrue( s_listeners.contains( listener ) );
s_listeners.remove( listener );
}
}
@ -633,8 +643,9 @@ public class DBUtils {
private static void notifyListeners( String path )
{
synchronized( s_listeners ) {
if ( null != s_listeners[0] ) {
s_listeners[0].pathSaved( path );
Iterator<DBChangeListener> iter = s_listeners.iterator();
while ( iter.hasNext() ) {
iter.next().pathSaved( path );
}
}
}