TopologyVersion (driver-core 4.1.0 API)

java.lang.Object
- com.mongodb.connection.TopologyVersion

```
@ThreadSafe
public final class TopologyVersion
extends Object
```
The topology version of a cluster.

Since:

4.1

Since server release
4.4

Constructor Summary

Constructors
Constructor	Description
`TopologyVersion(BsonDocument topologyVersionDocument)`	Construct a new instance from a document description
`TopologyVersion(ObjectId processId, long counter)`	Construct a new instance from process identifier and counter

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`BsonDocument`	`asDocument()`	Get the document representation of the topology version
`boolean`	`equals(Object o)`
`long`	`getCounter()`	Get the counter
`ObjectId`	`getProcessId()`	Get the process identifier
`int`	`hashCode()`
`String`	`toString()`

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

- Constructor Detail
  - TopologyVersion
```
public TopologyVersion(BsonDocument topologyVersionDocument)
```
    Construct a new instance from a document description
    
    Parameters:
    
    topologyVersionDocument - a document description of the topology version
  - TopologyVersion
```
public TopologyVersion(ObjectId processId,
                       long counter)
```
    Construct a new instance from process identifier and counter
    
    Parameters:
    
    processId - the process identifer
    
    counter - the counter
- Method Detail
  - getProcessId
```
public ObjectId getProcessId()
```
    Get the process identifier
    
    Returns:
    
    the process identifier
  - getCounter
```
public long getCounter()
```
    Get the counter
    
    Returns:
    
    the counter
  - asDocument
```
public BsonDocument asDocument()
```
    Get the document representation of the topology version
    
    Returns:
    
    the document representation of the topology version
  - 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