Session (dxFeed API 3.320)

java.lang.Object
- com.dxfeed.schedule.Session

```
public final class Session
extends Object
```
Session represents a continuous period of time during which apply same rules regarding trading activity. For example, regular trading session is a period of time consisting of one day of business activities in a financial market, from the opening bell to the closing bell, when regular trading occurs.
Sessions can be either trading or non-trading, with different sets of rules and reasons to exist. Sessions do not overlap with each other - rather they form consecutive chain of adjacent periods of time that cover entire time scale. The point on a border line is considered to belong to following session that starts there. Each session completely fits inside a certain day. Day may contain sessions with zero duration - e.g. indices that post value once a day. Such sessions can be of any appropriate type, trading or non-trading.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`containsTime(long time)` Returns `true` if specified time belongs to this session.
`boolean`	`equals(Object object)`
`Session`	`findNextSession(SessionFilter filter)` Returns following session accepted by specified filter.
`Session`	`findPrevSession(SessionFilter filter)` Returns previous session accepted by specified filter.
`Day`	`getDay()` Returns day to which this session belongs.
`long`	`getEndTime()` Returns end time of this session (exclusive).
`Session`	`getNextSession(SessionFilter filter)` Returns following session accepted by specified filter.
`Session`	`getPrevSession(SessionFilter filter)` Returns previous session accepted by specified filter.
`long`	`getStartTime()` Returns start time of this session (inclusive).
`SessionType`	`getType()` Returns type of this session.
`int`	`hashCode()`
`boolean`	`isEmpty()` Returns `true` if this session has zero duration.
`boolean`	`isTrading()` Returns `true` if trading activity is allowed within this session.
`String`	`toString()`

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

- Method Detail
  - getDay
```
public Day getDay()
```
    Returns day to which this session belongs.
  - getType
```
public SessionType getType()
```
    Returns type of this session.
  - isTrading
```
public boolean isTrading()
```
    Returns true if trading activity is allowed within this session. This method is equivalent to expression getType().isTrading().
    Some sessions may have zero duration - e.g. indices that post value once a day. Such sessions can be of any appropriate type, trading or non-trading.
  - isEmpty
```
public boolean isEmpty()
```
    Returns true if this session has zero duration. Empty sessions can be used for indices that post value once a day or for convenience. Such sessions can be of any appropriate type, trading or non-trading.
  - getStartTime
```
public long getStartTime()
```
    Returns start time of this session (inclusive). For normal sessions the start time is less than the end time, for empty sessions they are equal.
  - getEndTime
```
public long getEndTime()
```
    Returns end time of this session (exclusive). For normal sessions the end time is greater than the start time, for empty sessions they are equal.
  - containsTime
```
public boolean containsTime(long time)
```
    Returns true if specified time belongs to this session.
  - getPrevSession
```
public Session getPrevSession(SessionFilter filter)
```
    Returns previous session accepted by specified filter. This method may cross the day boundary and return appropriate session from previous days - up to a year back in time. If no such session was found within one year this method will throw NoSuchElementException.
    To find previous trading session of any type use this code:
```
session = session.getPrevSession(SessionFilter.TRADING);
```
    To find previous regular trading session use this code:
```
session = session.getPrevSession(SessionFilter.REGULAR);
```
    Parameters:
    
    filter - the filter to test sessions
    
    Returns:
    
    nearest previous session that is accepted by the filter
    
    Throws:
    
    NoSuchElementException - if no such session was found within one year
  - getNextSession
```
public Session getNextSession(SessionFilter filter)
```
    Returns following session accepted by specified filter. This method may cross the day boundary and return appropriate session from following days - up to a year in the future. If no such session was found within one year this method will throw NoSuchElementException.
    To find following trading session of any type use this code:
```
session = session.getNextSession(SessionFilter.TRADING);
```
    To find following regular trading session use this code:
```
session = session.getNextSession(SessionFilter.REGULAR);
```
    Parameters:
    
    filter - the filter to test sessions
    
    Returns:
    
    nearest following session that is accepted by the filter
    
    Throws:
    
    NoSuchElementException - if no such session was found within one year
  - findPrevSession
```
public Session findPrevSession(SessionFilter filter)
```
    Returns previous session accepted by specified filter. This method may cross the day boundary and return appropriate session from previous days - up to a year back in time. If no such session was found within one year this method will return null.
    To find previous trading session of any type use this code:
```
session = session.findPrevSession(SessionFilter.TRADING);
```
    To find previous regular trading session use this code:
```
session = session.findPrevSession(SessionFilter.REGULAR);
```
    Parameters:
    
    filter - the filter to test sessions
    
    Returns:
    
    nearest previous session that is accepted by the filter
  - findNextSession
```
public Session findNextSession(SessionFilter filter)
```
    Returns following session accepted by specified filter. This method may cross the day boundary and return appropriate session from following days - up to a year in the future. If no such session was found within one year this method will return null.
    To find following trading session of any type use this code:
```
session = session.findNextSession(SessionFilter.TRADING);
```
    To find following regular trading session use this code:
```
session = session.findNextSession(SessionFilter.REGULAR);
```
    Parameters:
    
    filter - the filter to test sessions
    
    Returns:
    
    nearest following session that is accepted by the filter
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - equals
```
public boolean equals(Object object)
```
    Overrides:
    
    equals in class Object
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class Session

Method Summary

Methods inherited from class java.lang.Object

Method Detail

getDay

getType

isTrading

isEmpty

getStartTime

getEndTime

containsTime

getPrevSession

getNextSession

findPrevSession

findNextSession

hashCode

equals

toString