diff options
Diffstat (limited to 'core/java/android/database')
| -rw-r--r-- | core/java/android/database/sqlite/SQLiteDatabase.java | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/core/java/android/database/sqlite/SQLiteDatabase.java b/core/java/android/database/sqlite/SQLiteDatabase.java index 515658f..2f3dc06 100644 --- a/core/java/android/database/sqlite/SQLiteDatabase.java +++ b/core/java/android/database/sqlite/SQLiteDatabase.java @@ -36,6 +36,7 @@ import android.util.Printer; import dalvik.system.CloseGuard; import java.io.File; +import java.io.FileFilter; import java.util.ArrayList; import java.util.HashMap; import java.util.List; @@ -678,6 +679,40 @@ public class SQLiteDatabase extends SQLiteClosable { } /** + * Deletes a database including its journal file and other auxiliary files + * that may have been created by the database engine. + * + * @param file The database file path. + * @return True if the database was successfully deleted. + */ + public static boolean deleteDatabase(File file) { + if (file == null) { + throw new IllegalArgumentException("file must not be null"); + } + + boolean deleted = false; + deleted |= file.delete(); + deleted |= new File(file.getPath() + "-journal").delete(); + deleted |= new File(file.getPath() + "-shm").delete(); + deleted |= new File(file.getPath() + "-wal").delete(); + + File dir = file.getParentFile(); + if (dir != null) { + final String prefix = file.getName() + "-mj"; + final FileFilter filter = new FileFilter() { + @Override + public boolean accept(File candidate) { + return candidate.getName().startsWith(prefix); + } + }; + for (File masterJournal : dir.listFiles(filter)) { + deleted |= masterJournal.delete(); + } + } + return deleted; + } + + /** * Reopens the database in read-write mode. * If the database is already read-write, does nothing. * |