AbstractBackupStrategy (xlog API)

java.lang.Object
- com.elvishew.xlog.printer.file.backup.AbstractBackupStrategy

All Implemented Interfaces:

BackupStrategy, BackupStrategy2

Direct Known Subclasses:

FileSizeBackupStrategy2
```
public abstract class AbstractBackupStrategy
extends java.lang.Object
implements BackupStrategy2
```
An abstract BackupStrategy2, simply append '.bak.n' to the end of normal file name when naming a backup with index n.
Developers can simply extend this class when defining their own BackupStrategy2.

Since:

1.9.0

Field Summary
- Fields inherited from interface com.elvishew.xlog.printer.file.backup.BackupStrategy2
  NO_LIMIT

Constructor Summary

Constructors
Constructor Description

AbstractBackupStrategy()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.String`	`getBackupFileName(java.lang.String fileName, int backupIndex)`	Get the backup file name for specific index.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.elvishew.xlog.printer.file.backup.BackupStrategy
shouldBackup

Methods inherited from interface com.elvishew.xlog.printer.file.backup.BackupStrategy2
getMaxBackupIndex

- Constructor Detail
  - AbstractBackupStrategy
```
public AbstractBackupStrategy()
```
- Method Detail
  - getBackupFileName
```
public java.lang.String getBackupFileName(java.lang.String fileName,
                                          int backupIndex)
```
    Description copied from interface: BackupStrategy2
    
    Get the backup file name for specific index.
    Generally, a backup file with normal file name 'log' and index 'n' could simply be 'log.bak.n', you can specify your own naming rules, by overriding this method.
    Make sure to return different backup file name with different backup index, and same backup file name with same index. Otherwise, it will lead to unexpected behavior.
    
    Specified by:
    
    getBackupFileName in interface BackupStrategy2
    
    Parameters:
    
    fileName - the normal file name, generated by FileNameGenerator.generateFileName(int, long)
    
    backupIndex - the backup index, which will increase from 1 to BackupStrategy2.getMaxBackupIndex()
    
    Returns:
    
    the backup file name