Overview

Holds the information about a database column.

Summary

Fields

The column name.

The column type affinity.

The column type after it is normalized to one of the basic types according to https://www.sqlite.org/datatype3.html Section 3.1.

This is the value Room uses for equality check.

Whether or not the column can be NULL.

The position of the column in the list of primary keys, 0 if the column is not part of the primary key.

This information is only available in API 20+. (SQLite version 3.7.16.2) On older platforms, it will be 1 if the column is part of the primary key and 0 otherwise.

The TableInfo.Column.equals(Object) implementation handles this inconsistency based on API levels os if you are using a custom SQLite deployment, it may return false positives.

The default value of this column.

Constructors

Deprecated: Use TableInfo.Column.Column(String, String, boolean, int, String, int) instead.

Methods

Checks if the default values provided match. Handles the special case in which the default value is surrounded by parenthesis (e.g. encountered in b/182284899). Surrounding parenthesis are removed by SQLite when reading from the database, hence this function will check if they are present in the actual value, if so, it will compare the two values by ignoring the surrounding parenthesis.

Returns whether this column is part of the primary key or not.

Returns:

True if this column is part of the primary key, false otherwise.