android – GreenDAO – 多列上的主键

GreenDAO是否支持多列的主键?

我在两列上使用Property的方法primaryKey()但它不起作用.我得到例外:

Caused by: android.database.sqlite.SQLiteException: table “table” has
more than one primary key

如何在多列上创建主键?我应该编辑生成的DAO类吗?

最佳答案
documentation说:

Currently, entities must have a long or Long property as their primary key.
[…]
To work around this issue, you can use a long primary key and use an unique index for the intended “key” properties.

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