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## org.neo4j.onlinebackup
Class Neo4jBackup

    java.lang.Object
      org.neo4j.onlinebackup.Neo4jBackup

All Implemented Interfaces:
  Backup

    public class Neo4jBackup

extends Object
implements Backup

Online backup implementation for Neo4j.

Method Summary
`static Backup` | `allDataSources(EmbeddedGraphDatabase source, EmbeddedGraphDatabase destination)` Backup from a running `EmbeddedGraphDatabase` to another running `EmbeddedGraphDatabase`.
`static Backup` | `allDataSources(EmbeddedGraphDatabase source, String destinationDir)` Backup from a running `EmbeddedGraphDatabase` to a destination directory.
`static Backup` | `customDataSources(EmbeddedGraphDatabase source, EmbeddedGraphDatabase destination, String... xaDataSourceNames)` Backup from a running `EmbeddedGraphDatabase` to another running `EmbeddedGraphDatabase`.
`static Backup` | `customDataSources(EmbeddedGraphDatabase source, String destinationDir, String... xaDataSourceNames)` Backup from a running `EmbeddedGraphDatabase` to a destination directory.
`void` | `disableFileLogger()` Disable logging to file.
`void` | `doBackup()` Perform the backup.
`void` | `enableFileLogger()` Enable logging to file.
`void` | `enableFileLogger(FileHandler handler)` Enable a user-provided `FileHandler`
`void` | `enableFileLogger(String filename)` Enable logging to the specified file.
`static Backup` | `neo4jDataSource(EmbeddedGraphDatabase source, EmbeddedGraphDatabase destination)` Backup from a running `EmbeddedGraphDatabase` to another running `EmbeddedGraphDatabase`.
`static Backup` | `neo4jDataSource(EmbeddedGraphDatabase source, String destinationDir)` Backup from a running `EmbeddedGraphDatabase` to a destination directory.
`void` | `setLogLevelDebug()` Enable debug logging.
`void` | `setLogLevelNormal()` Set logging to normal.
`void` | `setLogLevelOff()` Turn off all logging.

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

Method Detail

### neo4jDataSource

    public static Backup neo4jDataSource(EmbeddedGraphDatabase source,
                                         String destinationDir)

  Backup from a running `EmbeddedGraphDatabase` to a destination directory. Only the data source representing the Neo4j database will be used and if it isn't set to keep logical logs an `IllegalStateException` will be thrown.

  Parameters:
    `source` - running database as backup source
    `destinationDir` - location of backup destination
  Returns:
    instance for creating backup

### neo4jDataSource

    public static Backup neo4jDataSource(EmbeddedGraphDatabase source,
                                         EmbeddedGraphDatabase destination)

  Backup from a running `EmbeddedGraphDatabase` to another running `EmbeddedGraphDatabase`. Only the data source representing the Neo4j database will be used and if it isn't set to keep logical logs an `IllegalStateException` will be thrown.

  Parameters:
    `source` - running database as backup source
    `destination` - running database as backup destination
  Returns:
    instance for creating backup

### allDataSources

    public static Backup allDataSources(EmbeddedGraphDatabase source,
                                        String destinationDir)

  Backup from a running `EmbeddedGraphDatabase` to a destination directory. All registered XA data sources will be used and all those data sources will have to be set to keep their logical logs, otherwise an `IllegalStateException` will be thrown.

  Parameters:
    `source` - running database as backup source
    `destinationDir` - location of backup destination
  Returns:
    instance for creating backup

### allDataSources

    public static Backup allDataSources(EmbeddedGraphDatabase source,
                                        EmbeddedGraphDatabase destination)

  Backup from a running `EmbeddedGraphDatabase` to another running `EmbeddedGraphDatabase`. All registered XA data sources will be used and all those data sources will have to be set to keep their logical logs, otherwise an `IllegalStateException` will be thrown.

  Parameters:
    `source` - running database as backup source
    `destination` - running database as backup destination
  Returns:
    instance for creating backup

### customDataSources

    public static Backup customDataSources(EmbeddedGraphDatabase source,
                                           String destinationDir,
                                           String... xaDataSourceNames)

  Backup from a running `EmbeddedGraphDatabase` to a destination directory. Which XA data sources to include in the backup can here be explicitly specified. This is considered to be more of an "expert-mode". If any of the specified data sources isn't set to keep its logical logs an `IllegalStateException` will be thrown.

  Parameters:
    `source` - running database as backup source
    `destinationDir` - location of backup destination
    `xaDataSourceNames` - names of data sources to backup
  Returns:
    instance for creating backup

### customDataSources

    public static Backup customDataSources(EmbeddedGraphDatabase source,
                                           EmbeddedGraphDatabase destination,
                                           String... xaDataSourceNames)

  Backup from a running `EmbeddedGraphDatabase` to another running `EmbeddedGraphDatabase`. Which XA data sources to include in the backup can here be explicitly specified. This is considered to be more of an "expert-mode". If any of the specified data sources isn't set to keep its logical logs an `IllegalStateException` will be thrown.

  Parameters:
    `source` - running database as backup source
    `destination` - running database as backup destination
    `xaDataSourceNames` - names of data sources to backup
  Returns:
    instance for creating backup

### doBackup

    public void doBackup()
                  throws IOException

  Description copied from interface: `Backup`
  Perform the backup.

  Specified by:
    `doBackup` in interface `Backup`
  Throws:
    `IOException`

### enableFileLogger

    public void enableFileLogger()
                          throws SecurityException,
                                 IOException

  Description copied from interface: `Backup`
  Enable logging to file. The log messages will be appended to the backup.log file in the current working directory.

  Specified by:
    `enableFileLogger` in interface `Backup`
  Throws:
    `SecurityException`
    `IOException`

### enableFileLogger

    public void enableFileLogger(String filename)
                          throws SecurityException,
                                 IOException

  Description copied from interface: `Backup`
  Enable logging to the specified file.

  Specified by:
    `enableFileLogger` in interface `Backup`
  Parameters:
    `filename` - file name of log file
  Throws:
    `SecurityException`
    `IOException`

### enableFileLogger

    public void enableFileLogger(FileHandler handler)

  Description copied from interface: `Backup`
  Enable a user-provided `FileHandler`

  Specified by:
    `enableFileLogger` in interface `Backup`
  Parameters:
    `handler` - file handler for logging

### disableFileLogger

    public void disableFileLogger()

  Description copied from interface: `Backup`
  Disable logging to file.

  Specified by:
    `disableFileLogger` in interface `Backup`

### setLogLevelDebug

    public void setLogLevelDebug()

  Description copied from interface: `Backup`
  Enable debug logging. Adds debug output to both console and file (if file output is enabled).

  Specified by:
    `setLogLevelDebug` in interface `Backup`

### setLogLevelNormal

    public void setLogLevelNormal()

  Description copied from interface: `Backup`
  Set logging to normal. Changes settings for both console and file output.

  Specified by:
    `setLogLevelNormal` in interface `Backup`

### setLogLevelOff

    public void setLogLevelOff()

  Description copied from interface: `Backup`
  Turn off all logging.

  Specified by:
    `setLogLevelOff` in interface `Backup`

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