org.apache.accumulo.core.client

Enum Durability

java.lang.Object

java.lang.Enum<Durability>

org.apache.accumulo.core.client.Durability

All Implemented Interfaces:

Serializable, Comparable<Durability>

public enum Durability
extends Enum<Durability>

The value for the durability of a BatchWriter or ConditionalWriter.

Since:

1.7.0

Enum Constant Summary

Enum Constants

Enum Constant and Description
DEFAULT Use the durability as specified by the table or system configuration.
FLUSH Write mutations to the write-ahead log, and ensure the data is stored on remote servers, but perhaps not on persistent storage.
LOG Write mutations the the write-ahead log.
NONE Don't bother writing mutations to the write-ahead log.
SYNC Write mutations to the write-ahead log, and ensure the data is saved to persistent storage.

Method Summary

Modifier and Type	Method and Description
static Durability	valueOf(String name) Returns the enum constant of this type with the specified name.
static Durability[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

DEFAULT

public static final Durability DEFAULT

Use the durability as specified by the table or system configuration.

NONE

public static final Durability NONE

Don't bother writing mutations to the write-ahead log.

LOG

public static final Durability LOG

Write mutations the the write-ahead log. Data may be sitting the the servers output buffers, and not replicated anywhere.

FLUSH

public static final Durability FLUSH

Write mutations to the write-ahead log, and ensure the data is stored on remote servers, but perhaps not on persistent storage.

SYNC

public static final Durability SYNC

Write mutations to the write-ahead log, and ensure the data is saved to persistent storage.

Method Detail

values

public static Durability[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (Durability c : Durability.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static Durability valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null