public interface ConsistencyLevel
The only reason to model this as an interface (as opposed to an enum type) is to accommodate
for custom protocol extensions. If you're connecting to a standard Apache Cassandra cluster, all
ConsistencyLevel
s are DefaultConsistencyLevel
instances.
Modifier and Type | Field and Description |
---|---|
static ConsistencyLevel |
ALL |
static ConsistencyLevel |
ANY |
static ConsistencyLevel |
EACH_QUORUM |
static ConsistencyLevel |
LOCAL_ONE |
static ConsistencyLevel |
LOCAL_QUORUM |
static ConsistencyLevel |
LOCAL_SERIAL |
static ConsistencyLevel |
ONE |
static ConsistencyLevel |
QUORUM |
static ConsistencyLevel |
SERIAL |
static ConsistencyLevel |
THREE |
static ConsistencyLevel |
TWO |
Modifier and Type | Method and Description |
---|---|
int |
getProtocolCode()
The numerical value that the level is encoded to in protocol frames.
|
boolean |
isDcLocal()
Whether this consistency level applies to the local datacenter only.
|
boolean |
isSerial()
Whether this consistency level is serial, that is, applies only to the "paxos" phase of a lightweight
transaction.
|
String |
name()
The textual representation of the level in configuration files.
|
static final ConsistencyLevel ANY
static final ConsistencyLevel ONE
static final ConsistencyLevel TWO
static final ConsistencyLevel THREE
static final ConsistencyLevel QUORUM
static final ConsistencyLevel ALL
static final ConsistencyLevel LOCAL_ONE
static final ConsistencyLevel LOCAL_QUORUM
static final ConsistencyLevel EACH_QUORUM
static final ConsistencyLevel SERIAL
static final ConsistencyLevel LOCAL_SERIAL
int getProtocolCode()
@NonNull String name()
boolean isDcLocal()
boolean isSerial()
Serial consistency levels are only meaningful when executing conditional updates (INSERT
, UPDATE
or DELETE
statements with an IF
condition).
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