AlterWalRequest.Options (Kinetica Java API 7.2.3.0 API)

java.lang.Object
- com.gpudb.protocol.AlterWalRequest.Options

Enclosing class:

AlterWalRequest
```
public static final class AlterWalRequest.Options
extends Object
```
A set of string constants for the AlterWalRequest parameter options.
Optional parameters.

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`BACKGROUND` Wal entries are periodically written instead of immediately after each operation
`static String`	`CHECKSUM` If `TRUE` each entry will be checked against a protective checksum.
`static String`	`FALSE`
`static String`	`FLUSH` Protects entries in the event of a database crash
`static String`	`FLUSH_FREQUENCY` Specifies how frequently wal entries are written with background sync.
`static String`	`FSYNC` Protects entries in the event of an OS crash
`static String`	`MAX_SEGMENT_SIZE` Maximum size of an individual segment file
`static String`	`NONE` Disables the wal
`static String`	`OVERRIDE_NON_DEFAULT` If `TRUE` tables with unique wal settings will be overridden when applying a system level change.
`static String`	`PERSIST` If `TRUE` and a system-level change was requested, the system configuration will be written to disk upon successful application of this request.
`static String`	`RESTORE_SYSTEM_SETTINGS` If `TRUE` tables with unique wal settings will be reverted to the current global settings.
`static String`	`SEGMENT_COUNT` Approximate number of segment files to split the wal across.
`static String`	`SYNC_POLICY` Maximum size of an individual segment file.
`static String`	`TRUE`

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

- Field Detail
  - MAX_SEGMENT_SIZE
```
public static final String MAX_SEGMENT_SIZE
```
    Maximum size of an individual segment file
    
    See Also:
    
    Constant Field Values
  - SEGMENT_COUNT
```
public static final String SEGMENT_COUNT
```
    Approximate number of segment files to split the wal across. Must be at least two.
    
    See Also:
    
    Constant Field Values
  - SYNC_POLICY
```
public static final String SYNC_POLICY
```
    Maximum size of an individual segment file. Supported values:
    - NONE: Disables the wal
    - BACKGROUND: Wal entries are periodically written instead of immediately after each operation
    - FLUSH: Protects entries in the event of a database crash
    - FSYNC: Protects entries in the event of an OS crash
    See Also:
    
    Constant Field Values
  - NONE
```
public static final String NONE
```
    Disables the wal
    
    See Also:
    
    Constant Field Values
  - BACKGROUND
```
public static final String BACKGROUND
```
    Wal entries are periodically written instead of immediately after each operation
    
    See Also:
    
    Constant Field Values
  - FLUSH
```
public static final String FLUSH
```
    Protects entries in the event of a database crash
    
    See Also:
    
    Constant Field Values
  - FSYNC
```
public static final String FSYNC
```
    Protects entries in the event of an OS crash
    
    See Also:
    
    Constant Field Values
  - FLUSH_FREQUENCY
```
public static final String FLUSH_FREQUENCY
```
    Specifies how frequently wal entries are written with background sync. This is a global setting and can only be used with the system {options.table_names} specifier '*'.
    
    See Also:
    
    Constant Field Values
  - CHECKSUM
```
public static final String CHECKSUM
```
    If TRUE each entry will be checked against a protective checksum. Supported values:
    - TRUE
    - FALSE
    The default value is TRUE.
    See Also:
    
    Constant Field Values
  - TRUE
```
public static final String TRUE
```
    See Also:
    
    Constant Field Values
  - FALSE
```
public static final String FALSE
```
    See Also:
    
    Constant Field Values
  - OVERRIDE_NON_DEFAULT
```
public static final String OVERRIDE_NON_DEFAULT
```
    If TRUE tables with unique wal settings will be overridden when applying a system level change. Supported values:
    - TRUE
    - FALSE
    The default value is FALSE.
    See Also:
    
    Constant Field Values
  - RESTORE_SYSTEM_SETTINGS
```
public static final String RESTORE_SYSTEM_SETTINGS
```
    If TRUE tables with unique wal settings will be reverted to the current global settings. Cannot be used in conjunction with any other option. Supported values:
    - TRUE
    - FALSE
    The default value is FALSE.
    See Also:
    
    Constant Field Values
  - PERSIST
```
public static final String PERSIST
```
    If TRUE and a system-level change was requested, the system configuration will be written to disk upon successful application of this request. This will commit the changes from this request and any additional in-memory modifications. Supported values:
    - TRUE
    - FALSE
    The default value is TRUE.
    See Also:
    
    Constant Field Values

Class AlterWalRequest.Options

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

MAX_SEGMENT_SIZE

SEGMENT_COUNT

SYNC_POLICY

NONE

BACKGROUND

FLUSH

FSYNC

FLUSH_FREQUENCY

CHECKSUM

TRUE

FALSE

OVERRIDE_NON_DEFAULT

RESTORE_SYSTEM_SETTINGS

PERSIST