Consistency (Apache HBase 1.2.12 API)

java.lang.Object
- java.lang.Enum<Consistency>
- - org.apache.hadoop.hbase.client.Consistency

All Implemented Interfaces:

Serializable, Comparable<Consistency>
```
@InterfaceAudience.Public
@InterfaceStability.Evolving
public enum Consistency
extends Enum<Consistency>
```
Consistency defines the expected consistency level for an operation.

Enum Constant Summary

Enum Constants
Enum Constant and Description
`STRONG` Strong consistency is the default consistency model in HBase, where reads and writes go through a single server which serializes the updates, and returns all data that was written and ack'd.
`TIMELINE` Timeline consistent reads might return values that may not see the most recent updates.

Method Summary

Methods
Modifier and Type	Method and Description
`static Consistency`	`valueOf(String name)` Returns the enum constant of this type with the specified name.
`static Consistency[]`	`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
  - STRONG
```
public static final Consistency STRONG
```
    Strong consistency is the default consistency model in HBase, where reads and writes go through a single server which serializes the updates, and returns all data that was written and ack'd.
  - TIMELINE
```
public static final Consistency TIMELINE
```
    Timeline consistent reads might return values that may not see the most recent updates. Write transactions are always performed in strong consistency model in HBase which guarantees that transactions are ordered, and replayed in the same order by all copies of the data. In timeline consistency, the get and scan requests can be answered from data that may be stale.
    The client may still observe transactions out of order if the requests are responded from different servers.
- Method Detail
  - values
```
public static Consistency[] 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 (Consistency c : Consistency.values())
    System.out.println(c);
```
    Returns:
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static Consistency 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

Enum Consistency

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

STRONG

TIMELINE

Method Detail

values

valueOf