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java.lang.Object com.datastax.driver.core.Host
public class Host
A Cassandra node. This class keeps the information the driver maintain on a given Cassandra node.
Nested Class Summary | |
---|---|
class |
Host.HealthMonitor
Deprecated. See getMonitor() . |
static interface |
Host.StateListener
Interface for listeners that are interested in hosts added, up, down and removed events. |
Method Summary | |
---|---|
boolean |
equals(Object o)
|
InetAddress |
getAddress()
Returns the node address. |
String |
getDatacenter()
Returns the name of the datacenter this host is part of. |
Host.HealthMonitor |
getMonitor()
Deprecated. you are encouraged not to use the HealthMonitor anymore. To test if a node is considered UP or not, you should use isUp instead. To
register a Host.StateListener , you should do so at the Cluster level
through Cluster.register(com.datastax.driver.core.Host.StateListener) (registering against the HealtMonitor does
not work as intented: listeners will only be informed of onUp and onDown
events (not onAdd and onRemove) and you need to manually register against
every host. Cluster.register(com.datastax.driver.core.Host.StateListener) solves this). |
String |
getRack()
Returns the name of the rack this host is part of. |
int |
hashCode()
|
boolean |
isUp()
Returns whether the host is considered up by the driver. |
String |
toString()
|
Methods inherited from class java.lang.Object |
---|
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Method Detail |
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public InetAddress getAddress()
InetAddress
.public String getDatacenter()
null
, and the caller should always be aware
of this possibility.
public String getRack()
null
, and the caller should always aware of this
possibility.
public boolean isUp()
@Deprecated public Host.HealthMonitor getMonitor()
isUp
instead. To
register a Host.StateListener
, you should do so at the Cluster level
through Cluster.register(com.datastax.driver.core.Host.StateListener)
(registering against the HealtMonitor does
not work as intented: listeners will only be informed of onUp and onDown
events (not onAdd and onRemove) and you need to manually register against
every host. Cluster.register(com.datastax.driver.core.Host.StateListener)
solves this).
Host.StateListener
can also register against
the health monitor to be notified when this node is detected to be up or down
Host.HealthMonitor
.public final int hashCode()
hashCode
in class Object
public final boolean equals(Object o)
equals
in class Object
public String toString()
toString
in class Object
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