MongoClientOptions

java.lang.Object
- com.mongodb.MongoClientOptions

```
@Immutable
public class MongoClientOptions
extends Object
```
Various settings to control the behavior of a MongoClient.

Note: This class is a replacement for MongoOptions, to be used with MongoClient. The main difference in behavior is that the default write concern is WriteConcern.ACKNOWLEDGED.

Since:

2.10.0

See Also:

MongoClient

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`MongoClientOptions.Builder`	A builder for MongoClientOptions so that MongoClientOptions can be immutable, and to support easier construction through chaining.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`static MongoClientOptions.Builder`	`builder()`	Creates a builder instance.
`static MongoClientOptions.Builder`	`builder(MongoClientOptions options)`	Creates a builder instance.
`boolean`	`equals(Object o)`
`String`	`getApplicationName()`	Gets the logical name of the application using this MongoClient.
`List<ClusterListener>`	`getClusterListeners()`	Gets the list of added `ClusterListener`.
`CodecRegistry`	`getCodecRegistry()`	The codec registry to use.
`List<CommandListener>`	`getCommandListeners()`	Gets the list of added `CommandListener`.
`List<MongoCompressor>`	`getCompressorList()`	Gets the compressors to use for compressing messages to the server.
`List<ConnectionPoolListener>`	`getConnectionPoolListeners()`	Gets the list of added `ConnectionPoolListener`.
`int`	`getConnectionsPerHost()`	The maximum number of connections allowed per host for this MongoClient instance.
`int`	`getConnectTimeout()`	The connection timeout in milliseconds.
`DBDecoderFactory`	`getDbDecoderFactory()`	Override the decoder factory.
`DBEncoderFactory`	`getDbEncoderFactory()`	Override the encoder factory.
`String`	`getDescription()`	Gets the description for this MongoClient, which is used in various places like logging and JMX.
`int`	`getHeartbeatConnectTimeout()`	Gets the connect timeout for connections used for the cluster heartbeat.
`int`	`getHeartbeatFrequency()`	Gets the heartbeat frequency.
`int`	`getHeartbeatSocketTimeout()`	Gets the socket timeout for connections used for the cluster heartbeat.
`int`	`getLocalThreshold()`	Gets the local threshold.
`int`	`getMaxConnectionIdleTime()`	The maximum idle time of a pooled connection.
`int`	`getMaxConnectionLifeTime()`	The maximum life time of a pooled connection.
`int`	`getMaxWaitTime()`	The maximum wait time in milliseconds that a thread may wait for a connection to become available.
`int`	`getMinConnectionsPerHost()`	The minimum number of connections per host for this MongoClient instance.
`int`	`getMinHeartbeatFrequency()`	Gets the minimum heartbeat frequency.
`ReadConcern`	`getReadConcern()`	The read concern to use.
`ReadPreference`	`getReadPreference()`	The read preference to use for queries, map-reduce, aggregation, and count.
`String`	`getRequiredReplicaSetName()`	Gets the required replica set name.
`boolean`	`getRetryWrites()`	Returns true if writes should be retried if they fail due to a network error.
`List<ServerListener>`	`getServerListeners()`	Gets the list of added `ServerListener`.
`List<ServerMonitorListener>`	`getServerMonitorListeners()`	Gets the list of added `ServerMonitorListener`.
`int`	`getServerSelectionTimeout()`	Gets the server selection timeout in milliseconds, which defines how long the driver will wait for server selection to succeed before throwing an exception.
`ServerSelector`	`getServerSelector()`	Gets the server selector.
`SocketFactory`	`getSocketFactory()`	The socket factory for creating sockets to the mongo server.
`int`	`getSocketTimeout()`	The socket timeout in milliseconds.
`SSLContext`	`getSslContext()`	Returns the SSLContext.
`int`	`getThreadsAllowedToBlockForConnectionMultiplier()`	This multiplier, multiplied with the connectionsPerHost setting, gives the maximum number of threads that may be waiting for a connection to become available from the pool.
`WriteConcern`	`getWriteConcern()`	The write concern to use.
`int`	`hashCode()`
`boolean`	`isAlwaysUseMBeans()`	Gets whether JMX beans registered by the driver should always be MBeans, regardless of whether the VM is Java 6 or greater.
`boolean`	`isCursorFinalizerEnabled()`	Gets whether there is a a finalize method created that cleans up instances of DBCursor that the client does not close.
`boolean`	`isSocketKeepAlive()`	Deprecated. configuring keep-alive has been deprecated. It now defaults to true and disabling it is not recommended.
`boolean`	`isSslEnabled()`	Whether to use SSL.
`boolean`	`isSslInvalidHostNameAllowed()`	Returns whether invalid host names should be allowed if SSL is enabled.
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Method Detail
  - builder
```
public static MongoClientOptions.Builder builder()
```
    Creates a builder instance.
    
    Returns:
    
    a builder
    
    Since:
    
    3.0.0
  - builder
```
public static MongoClientOptions.Builder builder(MongoClientOptions options)
```
    Creates a builder instance.
    
    Parameters:
    
    options - existing MongoClientOptions to default the builder settings on.
    
    Returns:
    
    a builder
    
    Since:
    
    3.0.0
  - getDescription
```
public String getDescription()
```
    Gets the description for this MongoClient, which is used in various places like logging and JMX.
    
    Default is null.
    
    Returns:
    
    the description
  - getApplicationName
```
public String getApplicationName()
```
    Gets the logical name of the application using this MongoClient. The application name may be used by the client to identify the application to the server, for use in server logs, slow query logs, and profile collection.
    Default is null.
    
    Returns:
    
    the application name, which may be null
    
    Since:
    
    3.4
    
    Since server release
    3.4
  - getCompressorList
```
public List<MongoCompressor> getCompressorList()
```
    Gets the compressors to use for compressing messages to the server. The driver will use the first compressor in the list that the server is configured to support.
    Default is the empty list.
    
    Returns:
    
    the compressors
    
    Since:
    
    3.6
    
    Since server release
    3.4
  - getConnectionsPerHost
```
public int getConnectionsPerHost()
```
    The maximum number of connections allowed per host for this MongoClient instance. Those connections will be kept in a pool when idle. Once the pool is exhausted, any operation requiring a connection will block waiting for an available connection.
    
    Default is 100.
    
    Returns:
    
    the maximum size of the connection pool per host
    
    See Also:
    
    getThreadsAllowedToBlockForConnectionMultiplier()
  - getMinConnectionsPerHost
```
public int getMinConnectionsPerHost()
```
    The minimum number of connections per host for this MongoClient instance. Those connections will be kept in a pool when idle, and the pool will ensure over time that it contains at least this minimum number.
    
    Default is 0.
    
    Returns:
    
    the minimum size of the connection pool per host
  - getThreadsAllowedToBlockForConnectionMultiplier
```
public int getThreadsAllowedToBlockForConnectionMultiplier()
```
    This multiplier, multiplied with the connectionsPerHost setting, gives the maximum number of threads that may be waiting for a connection to become available from the pool. All further threads will get an exception right away. For example if connectionsPerHost is 10 and threadsAllowedToBlockForConnectionMultiplier is 5, then up to 50 threads can wait for a connection.
    
    Default is 5.
    
    Returns:
    
    the multiplier
  - getServerSelectionTimeout
```
public int getServerSelectionTimeout()
```
    Gets the server selection timeout in milliseconds, which defines how long the driver will wait for server selection to succeed before throwing an exception.
    
    Default is 30,000 milliseconds. A value of 0 means that it will timeout immediately if no server is available. A negative value means to wait indefinitely.
    
    Returns:
    
    the server selection timeout in milliseconds.
  - getMaxWaitTime
```
public int getMaxWaitTime()
```
    The maximum wait time in milliseconds that a thread may wait for a connection to become available.
    
    Default is 120,000 milliseconds. A value of 0 means that it will not wait. A negative value means to wait indefinitely.
    
    Returns:
    
    the maximum wait time.
  - getMaxConnectionIdleTime
```
public int getMaxConnectionIdleTime()
```
    The maximum idle time of a pooled connection. A zero value indicates no limit to the idle time. A pooled connection that has exceeded its idle time will be closed and replaced when necessary by a new connection.
    Default is 0, indicating no limit to the idle time.
    
    Returns:
    
    the maximum idle time, in milliseconds
    
    Since:
    
    2.12
  - getMaxConnectionLifeTime
```
public int getMaxConnectionLifeTime()
```
    The maximum life time of a pooled connection. A zero value indicates no limit to the life time. A pooled connection that has exceeded its life time will be closed and replaced when necessary by a new connection.
    Default is 0, indicating no limit to the life time.
    
    Returns:
    
    the maximum life time, in milliseconds
    
    Since:
    
    2.12
  - getConnectTimeout
```
public int getConnectTimeout()
```
    The connection timeout in milliseconds. A value of 0 means no timeout. It is used solely when establishing a new connection Socket.connect(java.net.SocketAddress, int)
    
    Default is 10,000 milliseconds.
    
    Returns:
    
    the socket connect timeout
  - getSocketTimeout
```
public int getSocketTimeout()
```
    The socket timeout in milliseconds. It is used for I/O socket read and write operations Socket.setSoTimeout(int)
    
    Default is 0 and means no timeout.
    
    Returns:
    
    the socket timeout, in milliseconds
  - isSocketKeepAlive
```
@Deprecated
public boolean isSocketKeepAlive()
```
    Deprecated. configuring keep-alive has been deprecated. It now defaults to true and disabling it is not recommended.
    
    This flag controls the socket keep-alive feature that keeps a connection alive through firewalls Socket.setKeepAlive(boolean)
    
    Default is true.
    
    Returns:
    
    whether keep-alive is enabled on each socket
    
    See Also:
    
    Does TCP keep-alive time affect MongoDB Deployments?
  - getHeartbeatFrequency
```
public int getHeartbeatFrequency()
```
    Gets the heartbeat frequency. This is the frequency that the driver will attempt to determine the current state of each server in the cluster.
    Default is 10,000 milliseconds.
    
    Returns:
    
    the heartbeat frequency, in milliseconds
    
    Since:
    
    2.12
  - getMinHeartbeatFrequency
```
public int getMinHeartbeatFrequency()
```
    Gets the minimum heartbeat frequency. In the event that the driver has to frequently re-check a server's availability, it will wait at least this long since the previous check to avoid wasted effort.
    Default is 500 milliseconds.
    
    Returns:
    
    the minimum heartbeat frequency, in milliseconds
    
    Since:
    
    2.13
  - getHeartbeatConnectTimeout
```
public int getHeartbeatConnectTimeout()
```
    Gets the connect timeout for connections used for the cluster heartbeat.
    
    Default is 20,000 milliseconds.
    
    Returns:
    
    the heartbeat connect timeout, in milliseconds
    
    Since:
    
    2.12
  - getHeartbeatSocketTimeout
```
public int getHeartbeatSocketTimeout()
```
    Gets the socket timeout for connections used for the cluster heartbeat.
    Default is 20,000 milliseconds.
    
    Returns:
    
    the heartbeat socket timeout, in milliseconds
    
    Since:
    
    2.12
  - getLocalThreshold
```
public int getLocalThreshold()
```
    Gets the local threshold. When choosing among multiple MongoDB servers to send a request, the MongoClient will only send that request to a server whose ping time is less than or equal to the server with the fastest ping time plus the local threshold.
    
    For example, let's say that the client is choosing a server to send a query when the read preference is ReadPreference.secondary(), and that there are three secondaries, server1, server2, and server3, whose ping times are 10, 15, and 16 milliseconds, respectively. With a local threshold of 5 milliseconds, the client will send the query to either server1 or server2 (randomly selecting between the two).
    
    Default is 15 milliseconds.
    
    Returns:
    
    the local threshold, in milliseconds
    
    Since:
    
    2.13.0
    
    MongoDB documentation
    Local Threshold
  - getRequiredReplicaSetName
```
@Nullable
public String getRequiredReplicaSetName()
```
    Gets the required replica set name. With this option set, the MongoClient instance will
    1. Connect in replica set mode, and discover all members of the set based on the given servers
    2. Make sure that the set name reported by all members matches the required set name.
    3. Refuse to service any requests if any member of the seed list is not part of a replica set with the required name.
    Returns:
    
    the required replica set name
    
    Since:
    
    2.12
  - isSslEnabled
```
public boolean isSslEnabled()
```
    Whether to use SSL.
    Default is false.
    
    Returns:
    
    true if SSL should be used
    
    Since:
    
    3.0
  - isSslInvalidHostNameAllowed
```
public boolean isSslInvalidHostNameAllowed()
```
    Returns whether invalid host names should be allowed if SSL is enabled. Take care before setting this to true, as it makes the application susceptible to man-in-the-middle attacks. Note that host name verification currently requires Java 7, so if your application is using SSL and must run on Java 6, this property must be set to true.
    Default is false.
    
    Returns:
    
    true if invalid host names are allowed.
  - getSslContext
```
public SSLContext getSslContext()
```
    Returns the SSLContext. This property is ignored when either sslEnabled is false or socketFactory is non-null.
    
    Returns:
    
    the configured SSLContext, which may be null. In that case SSLContext.getDefault() will be used when SSL is enabled.
    
    Since:
    
    3.5
  - getReadPreference
```
public ReadPreference getReadPreference()
```
    The read preference to use for queries, map-reduce, aggregation, and count.
    
    Default is ReadPreference.primary().
    
    Returns:
    
    the read preference
    
    See Also:
    
    ReadPreference.primary()
  - getWriteConcern
```
public WriteConcern getWriteConcern()
```
    The write concern to use.
    
    Default is WriteConcern.ACKNOWLEDGED.
    
    Returns:
    
    the write concern
    
    See Also:
    
    WriteConcern.ACKNOWLEDGED
  - getRetryWrites
```
public boolean getRetryWrites()
```
    Returns true if writes should be retried if they fail due to a network error.
    
    Returns:
    
    the retryWrites value
    
    Since:
    
    3.6
    
    Since server release
    3.6
  - getReadConcern
```
public ReadConcern getReadConcern()
```
    The read concern to use.
    
    Returns:
    
    the read concern
    
    Since:
    
    3.2
    
    MongoDB documentation
    Read Concern
    Since server release
    3.2
  - getCodecRegistry
```
public CodecRegistry getCodecRegistry()
```
    The codec registry to use. By default, a MongoClient will be able to encode and decode instances of Document.
    
    Note that instances of DB and DBCollection do not use the registry, so it's not necessary to include a codec for DBObject in the registry.
    
    Returns:
    
    the codec registry
    
    Since:
    
    3.0
    
    See Also:
    
    MongoClient.getDatabase(java.lang.String)
  - getServerSelector
```
public ServerSelector getServerSelector()
```
    Gets the server selector.
    The server selector augments the normal server selection rules applied by the driver when determining which server to send an operation to. At the point that it's called by the driver, the ClusterDescription which is passed to it contains a list of ServerDescription instances which satisfy either the configured ReadPreference for any read operation or ones that can take writes (e.g. a standalone, mongos, or replica set primary).
    
    The server selector can then filter the ServerDescription list using whatever criteria that is required by the application.
    
    After this selector executes, two additional selectors are applied by the driver:
    - select from within the latency window
    - select a random server from those remaining
    To skip the latency window selector, an application can:
    - configure the local threshold to a sufficiently high value so that it doesn't exclude any servers
    - return a list containing a single server from this selector (which will also make the random member selector a no-op)
    Returns:
    
    the server selector, which may be null
    
    Since:
    
    3.6
  - getClusterListeners
```
public List<ClusterListener> getClusterListeners()
```
    Gets the list of added ClusterListener. The default is an empty list.
    
    Returns:
    
    the unmodifiable list of cluster listeners
    
    Since:
    
    3.3
  - getCommandListeners
```
public List<CommandListener> getCommandListeners()
```
    Gets the list of added CommandListener.
    Default is an empty list.
    
    Returns:
    
    the unmodifiable list of command listeners
    
    Since:
    
    3.1
  - getConnectionPoolListeners
```
public List<ConnectionPoolListener> getConnectionPoolListeners()
```
    Gets the list of added ConnectionPoolListener. The default is an empty list.
    
    Returns:
    
    the unmodifiable list of connection pool listeners
    
    Since:
    
    3.5
  - getServerListeners
```
public List<ServerListener> getServerListeners()
```
    Gets the list of added ServerListener. The default is an empty list.
    
    Returns:
    
    the unmodifiable list of server listeners
    
    Since:
    
    3.3
  - getServerMonitorListeners
```
public List<ServerMonitorListener> getServerMonitorListeners()
```
    Gets the list of added ServerMonitorListener. The default is an empty list.
    
    Returns:
    
    the unmodifiable list of server monitor listeners
    
    Since:
    
    3.3
  - getDbDecoderFactory
```
public DBDecoderFactory getDbDecoderFactory()
```
    Override the decoder factory.
    Default is for the standard Mongo Java driver configuration.
    
    Returns:
    
    the decoder factory
  - getDbEncoderFactory
```
public DBEncoderFactory getDbEncoderFactory()
```
    Override the encoder factory.
    Default is for the standard Mongo Java driver configuration.
    
    Returns:
    
    the encoder factory
  - isAlwaysUseMBeans
```
public boolean isAlwaysUseMBeans()
```
    Gets whether JMX beans registered by the driver should always be MBeans, regardless of whether the VM is Java 6 or greater. If false, the driver will use MXBeans if the VM is Java 6 or greater, and use MBeans if the VM is Java 5.
    
    Default is false.
    
    Returns:
    
    true if JMX beans should always be MBeans
  - getSocketFactory
```
public SocketFactory getSocketFactory()
```
    The socket factory for creating sockets to the mongo server.
    
    Default is SocketFactory.getDefault()
    
    Returns:
    
    the socket factory
  - isCursorFinalizerEnabled
```
public boolean isCursorFinalizerEnabled()
```
    Gets whether there is a a finalize method created that cleans up instances of DBCursor that the client does not close. If you are careful to always call the close method of DBCursor, then this can safely be set to false.
    
    Default is true.
    
    Returns:
    
    whether finalizers are enabled on cursors
    
    See Also:
    
    DBCursor, DBCursor.close()
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class MongoClientOptions

Nested Class Summary

Method Summary

Methods inherited from class java.lang.Object

Method Detail

builder

builder

getDescription

getApplicationName

getCompressorList

getConnectionsPerHost

getMinConnectionsPerHost

getThreadsAllowedToBlockForConnectionMultiplier

getServerSelectionTimeout

getMaxWaitTime

getMaxConnectionIdleTime

getMaxConnectionLifeTime

getConnectTimeout

getSocketTimeout

isSocketKeepAlive

getHeartbeatFrequency

getMinHeartbeatFrequency

getHeartbeatConnectTimeout

getHeartbeatSocketTimeout

getLocalThreshold

getRequiredReplicaSetName

isSslEnabled

isSslInvalidHostNameAllowed

getSslContext

getReadPreference

getWriteConcern

getRetryWrites

getReadConcern

getCodecRegistry

getServerSelector

getClusterListeners

getCommandListeners

getConnectionPoolListeners

getServerListeners

getServerMonitorListeners

getDbDecoderFactory

getDbEncoderFactory

isAlwaysUseMBeans

getSocketFactory

isCursorFinalizerEnabled

equals

hashCode

toString