@Override
public Cursor query(
Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
int match = sURIMatcher.match(uri);
SQLiteDatabase db = dbHelper.getReadableDatabase();
Cursor c;
switch (match) {
case GRAVES:
return handleQuery(uri, projection, db);
case GRAVE_URI_ID:
long departedId = ContentUris.parseId(uri);
c =
db.query(
DepartedTableHelper.TABLE_NAME,
projection,
Columns._ID
+ " = "
+ departedId
+ (!TextUtils.isEmpty(selection) ? " AND (" + selection + ')' : ""),
selectionArgs,
null,
null,
sortOrder);
c.setNotificationUri(getContext().getContentResolver(), CONTENT_URI);
return c;
default:
throw new IllegalArgumentException("unsupported uri: " + uri);
}
}
@Override
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
if (sURIMatcher.match(uri) == GRAVES) {
final SQLiteDatabase db = dbHelper.getWritableDatabase();
getContext().getContentResolver().notifyChange(uri, null);
return db.update(DepartedTableHelper.TABLE_NAME, values, selection, selectionArgs);
} else {
throw new IllegalArgumentException("Unknown uri: " + uri);
}
}
@Override
public Uri insert(Uri uri, ContentValues values) {
if (sURIMatcher.match(uri) == GRAVES) {
final SQLiteDatabase db = dbHelper.getWritableDatabase();
long id = db.insert(DepartedTableHelper.TABLE_NAME, null, values);
Uri insertUri = ContentUris.withAppendedId(CONTENT_URI, id);
getContext().getContentResolver().notifyChange(insertUri, null);
return insertUri;
} else {
throw new IllegalArgumentException("Unknown uri: " + uri);
}
}
@Override
public ContentProviderResult[] applyBatch(ArrayList<ContentProviderOperation> operations)
throws OperationApplicationException {
SQLiteDatabase db = dbHelper.getWritableDatabase();
db.beginTransaction();
try {
ContentProviderResult[] results = super.applyBatch(operations);
db.setTransactionSuccessful();
return results;
} finally {
db.endTransaction();
}
}
@Override
public int delete(Uri uri, String selection, String[] selectionArgs) {
int match = sURIMatcher.match(uri);
SQLiteDatabase db = dbHelper.getWritableDatabase();
int count = 0;
switch (match) {
case GRAVES:
StringBuilder builder = new StringBuilder();
String[] whereArgs = createWhere(uri, builder);
count = db.delete(DepartedTableHelper.TABLE_NAME, builder.toString(), whereArgs);
getContext().getContentResolver().notifyChange(uri, null);
break;
case GRAVE_URI_ID:
long departedId = ContentUris.parseId(uri);
count = db.delete(DepartedTableHelper.TABLE_NAME, Columns._ID + " = " + departedId, null);
getContext().getContentResolver().notifyChange(uri, null);
break;
}
return count;
}