com.thinkaurelius.titan.diskstorage.keycolumnvalue

Enum ConsistencyLevel

java.lang.Object

java.lang.Enum<ConsistencyLevel>

com.thinkaurelius.titan.diskstorage.keycolumnvalue.ConsistencyLevel

All Implemented Interfaces:

Serializable, Comparable<ConsistencyLevel>

public enum ConsistencyLevel
extends Enum<ConsistencyLevel>

Consistency Levels for transactions.

Author:

Matthias Broecheler (me@matthiasb.com)

Enum Constant Summary

Enum Constants

Enum Constant and Description
DEFAULT The default consistency level afforded by the underlying storage backend
KEY_CONSISTENT Consistency level which ensures that operations on a KeyColumnValueStore are key-consistent.
LOCAL_KEY_CONSISTENT Consistency level which ensures that operations on a KeyColumnValueStore are key-consistent with respect to a local cluster where multiple local clusters form the entire (global) cluster.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	isKeyConsistent()
static ConsistencyLevel	valueOf(String name) Returns the enum constant of this type with the specified name.
static ConsistencyLevel[]	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 ConsistencyLevel DEFAULT

The default consistency level afforded by the underlying storage backend

KEY_CONSISTENT

public static final ConsistencyLevel KEY_CONSISTENT

Consistency level which ensures that operations on a KeyColumnValueStore are key-consistent.

LOCAL_KEY_CONSISTENT

public static final ConsistencyLevel LOCAL_KEY_CONSISTENT

Consistency level which ensures that operations on a KeyColumnValueStore are key-consistent with respect to a local cluster where multiple local clusters form the entire (global) cluster. In other words, KEY_CONSISTENT ensures key consistency across the entire global cluster whereas this is restricted to the local cluster.

Method Detail

values

public static ConsistencyLevel[] 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 (ConsistencyLevel c : ConsistencyLevel.values())
    System.out.println(c);

Returns:

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

valueOf

public static ConsistencyLevel 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

isKeyConsistent

public boolean isKeyConsistent()