# Japannext J-Market Enumerations

Japannext operates the J-Market, an alternative trading system for Japanese equities.

The following fields have Enumerations:

* BOOK_TYPE - Type of order book or trading mechanism through which a trade was executed.
* QUOTE_SESSION - Trading session from which the quote originates, e.g. “Day”, “Night”
* TRADE_PERIOD - Market period during which a trade was executed.
* TRADE_SESSION - Trading session from which a trade originates, e.g. “Day”, “Night”

#### BOOK_TYPE - Enumeration

|   Enumeration ID | Enumeration Description   |
|------------------|---------------------------|
|                0 | Lit order book            |

#### QUOTE_SESSION - Enumeration

| Enumeration ID   | Enumeration Description   |
|------------------|---------------------------|
| Day              | Day session               |
| Night            | Night session             |

#### TRADE_PERIOD - Enumeration

| Enumeration ID   | Enumeration Description   |
|------------------|---------------------------|
| -                | Regular trading           |

#### TRADE_SESSION - Enumeration

| Enumeration ID   | Enumeration Description   |
|------------------|---------------------------|
| Day              | Day session               |
| Night            | Night session             |