All Implemented Interfaces:
```
public class SessionManager

                    
```
This class is responsible for managing session level signals i.e. session count, user retention, session depth, appSessionStartTimeStamp. It also provides the sessionId for the session.
Supports two modes selected by SignalsConfig.SessionConfig.fgBgModelEnabled: a legacy one-shot start (startSessionLegacy) and a foreground/background model that tracks foreground duration and expires the session after a configurable idle timeout.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description

Field Summary

Fields
Modifier and Type	Field	Description
`private final KeyValueStore`	`defaultKVStore`
`private final <Error class: unknown class><String, String>`	`sessionIdMap`
`public final static SessionManager`	`INSTANCE`

Constructor Summary

Constructors
Constructor	Description

Enum Constant Summary

Enum Constants
Enum Constant	Description

Method Summary

Modifier and Type	Method	Description
`final Unit`	`startSession()`	Foreground entry point.
`final Unit`	`onAppBackground()`	Called when the app is backgrounded (fg/bg model only).
`final Unit`	`setIsSessionTrackingEnabled(Boolean isSessionTrackingEnabled)`
`final Unit`	`updateSessionDepth(String adtype, Boolean isRewarded)`
`final JSONObject`	`getSessionDataMap()`	Builds the session signal payload.
`final Unit`	`updateSessionCount()`
`final Unit`	`updateUserRetention()`	The user retention timestamp is the time when the user first started using the app.
`final Unit`	`resetSessionState()`
`final Integer`	`getCalculatedUserRetention()`
`final KeyValueStore`	`getDefaultKVStore()`
`final <Error class: unknown class><String, String>`	`getSessionIdMap()`

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

- Constructor Detail
- Method Detail
  - startSession
```
 final Unit startSession()
```
    Foreground entry point. Routes to the legacy one-shot start or the foreground/background model based on config.
  - onAppBackground
```
 final Unit onAppBackground()
```
    Called when the app is backgrounded (fg/bg model only). Banks the elapsed foreground duration and records the background-entry timestamp. No timer is armed — expiry is detected lazily on the next foreground by comparing lastBackgroundTimeMillis against the configured timeout.
  - setIsSessionTrackingEnabled
```
 final Unit setIsSessionTrackingEnabled(Boolean isSessionTrackingEnabled)
```
  - updateSessionDepth
```
 final Unit updateSessionDepth(String adtype, Boolean isRewarded)
```
  - getSessionDataMap
```
 final JSONObject getSessionDataMap()
```
    Builds the session signal payload. Emits foreground duration (f-dur) only in the fg/bg model.
  - updateSessionCount
```
 final Unit updateSessionCount()
```
  - updateUserRetention
```
 final Unit updateUserRetention()
```
    The user retention timestamp is the time when the user first started using the app. If the user retention timestamp is not already set (i.e., it is 0), this function will set it to the current time.
  - resetSessionState
```
 final Unit resetSessionState()
```
  - getCalculatedUserRetention
```
 final Integer getCalculatedUserRetention()
```
    Returns:
    
    The user retention in days, or 0 if the application context is null.
  - getDefaultKVStore
```
 final KeyValueStore getDefaultKVStore()
```
  - getSessionIdMap
```
 final <Error class: unknown class><String, String> getSessionIdMap()
```

Object SessionManager

Nested Class Summary

Field Summary

Constructor Summary

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Method Detail

startSession

onAppBackground

setIsSessionTrackingEnabled

updateSessionDepth

getSessionDataMap

updateSessionCount

updateUserRetention

resetSessionState

getCalculatedUserRetention

getDefaultKVStore

getSessionIdMap