org.apache.cassandra.db

Enum ConsistencyLevel

java.lang.Object

java.lang.Enum<ConsistencyLevel>

org.apache.cassandra.db.ConsistencyLevel

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<ConsistencyLevel>

public enum ConsistencyLevel
extends java.lang.Enum<ConsistencyLevel>

Enum Constant Summary

Enum Constants

Enum Constant and Description
ALL
ANY
EACH_QUORUM
LOCAL_ONE
LOCAL_QUORUM
LOCAL_SERIAL
NODE_LOCAL
ONE
QUORUM
SERIAL
THREE
TWO

Field Summary

Fields

Modifier and Type	Field and Description
int	code

Method Summary

Modifier and Type	Method and Description
int	blockFor(Keyspace keyspace)
int	blockForWrite(Keyspace keyspace, Endpoints<?> pending)
static com.carrotsearch.hppc.ObjectIntHashMap<java.lang.String>	eachQuorumForRead(Keyspace keyspace)
static com.carrotsearch.hppc.ObjectIntHashMap<java.lang.String>	eachQuorumForWrite(Keyspace keyspace, Endpoints<?> pendingWithDown)
static ConsistencyLevel	fromCode(int code)
boolean	isDatacenterLocal()
boolean	isSerialConsistency()
static int	localQuorumFor(Keyspace keyspace, java.lang.String dc)
static int	localQuorumForOurDc(Keyspace keyspace)
static int	quorumFor(Keyspace keyspace)
boolean	satisfies(ConsistencyLevel other, Keyspace keyspace) Determine if this consistency level meets or exceeds the consistency requirements of the given cl for the given keyspace WARNING: this is not locality aware; you cannot safely use this with mixed locality consistency levels (e.g.
void	validateCounterForWrite(TableMetadata metadata)
void	validateForCas()
void	validateForCasCommit(java.lang.String keyspaceName)
void	validateForRead(java.lang.String keyspaceName)
void	validateForWrite(java.lang.String keyspaceName)
static ConsistencyLevel	valueOf(java.lang.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

ANY

public static final ConsistencyLevel ANY

ONE

public static final ConsistencyLevel ONE

TWO

public static final ConsistencyLevel TWO

THREE

public static final ConsistencyLevel THREE

QUORUM

public static final ConsistencyLevel QUORUM

ALL

public static final ConsistencyLevel ALL

LOCAL_QUORUM

public static final ConsistencyLevel LOCAL_QUORUM

EACH_QUORUM

public static final ConsistencyLevel EACH_QUORUM

SERIAL

public static final ConsistencyLevel SERIAL

LOCAL_SERIAL

public static final ConsistencyLevel LOCAL_SERIAL

LOCAL_ONE

public static final ConsistencyLevel LOCAL_ONE

NODE_LOCAL

public static final ConsistencyLevel NODE_LOCAL

Field Detail

code

public final int code

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(java.lang.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:

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

java.lang.NullPointerException - if the argument is null

fromCode

public static ConsistencyLevel fromCode(int code)

quorumFor

public static int quorumFor(Keyspace keyspace)

localQuorumFor

public static int localQuorumFor(Keyspace keyspace,
                                 java.lang.String dc)

localQuorumForOurDc

public static int localQuorumForOurDc(Keyspace keyspace)

eachQuorumForRead

public static com.carrotsearch.hppc.ObjectIntHashMap<java.lang.String> eachQuorumForRead(Keyspace keyspace)

eachQuorumForWrite

public static com.carrotsearch.hppc.ObjectIntHashMap<java.lang.String> eachQuorumForWrite(Keyspace keyspace,
                                                                                          Endpoints<?> pendingWithDown)

blockFor

public int blockFor(Keyspace keyspace)

blockForWrite

public int blockForWrite(Keyspace keyspace,
                         Endpoints<?> pending)

satisfies

public boolean satisfies(ConsistencyLevel other,
                         Keyspace keyspace)

Determine if this consistency level meets or exceeds the consistency requirements of the given cl for the given keyspace WARNING: this is not locality aware; you cannot safely use this with mixed locality consistency levels (e.g. LOCAL_QUORUM and QUORUM)

isDatacenterLocal

public boolean isDatacenterLocal()

validateForRead

public void validateForRead(java.lang.String keyspaceName)
                     throws InvalidRequestException

Throws:

InvalidRequestException

validateForWrite

public void validateForWrite(java.lang.String keyspaceName)
                      throws InvalidRequestException

Throws:

InvalidRequestException

validateForCasCommit

public void validateForCasCommit(java.lang.String keyspaceName)
                          throws InvalidRequestException

Throws:

InvalidRequestException

validateForCas

public void validateForCas()
                    throws InvalidRequestException

Throws:

InvalidRequestException

isSerialConsistency

public boolean isSerialConsistency()

validateCounterForWrite

public void validateCounterForWrite(TableMetadata metadata)
                             throws InvalidRequestException

Throws:

InvalidRequestException