public abstract class ReadFrom extends Object
Modifier and Type | Class and Description |
---|---|
static interface |
ReadFrom.Nodes
Descriptor of nodes that are available for the current read operation.
|
Modifier and Type | Field and Description |
---|---|
static ReadFrom |
ANY
Setting to read from any node.
|
static ReadFrom |
MASTER
Deprecated.
since 6.0 in favor of
UPSTREAM . |
static ReadFrom |
MASTER_PREFERRED
Deprecated.
since 6.0 in favor of
UPSTREAM_PREFERRED . |
static ReadFrom |
NEAREST
Setting to read from the nearest node.
|
static ReadFrom |
REPLICA
Setting to read from the replica only.
|
static ReadFrom |
REPLICA_PREFERRED
Setting to read preferred from replica and fall back to upstream if no replica is not available.
|
static ReadFrom |
SLAVE
Deprecated.
renamed to
REPLICA . |
static ReadFrom |
SLAVE_PREFERRED
Deprecated.
Renamed to
REPLICA_PREFERRED . |
static ReadFrom |
UPSTREAM
Setting to read from the upstream only.
|
static ReadFrom |
UPSTREAM_PREFERRED
Setting to read preferred from the upstream and fall back to a replica if the upstream is not available.
|
Constructor and Description |
---|
ReadFrom() |
Modifier and Type | Method and Description |
---|---|
protected boolean |
isOrderSensitive()
|
abstract List<RedisNodeDescription> |
select(ReadFrom.Nodes nodes)
Chooses the nodes from the matching Redis nodes that match this read selector.
|
static ReadFrom |
valueOf(String name)
Retrieve the
ReadFrom preset by name. |
@Deprecated public static final ReadFrom MASTER
UPSTREAM
.@Deprecated public static final ReadFrom MASTER_PREFERRED
UPSTREAM_PREFERRED
.public static final ReadFrom UPSTREAM
public static final ReadFrom UPSTREAM_PREFERRED
public static final ReadFrom REPLICA_PREFERRED
@Deprecated public static final ReadFrom SLAVE_PREFERRED
REPLICA_PREFERRED
.public static final ReadFrom REPLICA
@Deprecated public static final ReadFrom SLAVE
REPLICA
.public static final ReadFrom NEAREST
public static final ReadFrom ANY
public abstract List<RedisNodeDescription> select(ReadFrom.Nodes nodes)
nodes
- set of nodes that are suitable for readingRedisNodeDescription
s that are selected for readingprotected boolean isOrderSensitive()
Copyright © 2020 lettuce.io. All rights reserved.