Query for id needs integer parameter

Question

In the documentation the following is mentioned: ``` Account account = accountDao.queryForId("John Smith"); if (account == null) { // the name "John Smith" does not match any rows } ``` But in Eclipse(android) i only see the option to pass an integer as parameter? any help?

Accepted Answer

The `Dao` objects use generics to enforce the type of id is associated with your entity. If you only see the option to pass an integer into `dao.queryForId(...)` then you probably, mistakenly, defined the dao like: ``` Dao accountDao = getDao(Account.class); ``` The first generic parameter specifies the type of the entity and the second generic parameter specifies the type of the ID field in that entity. With the `Integer`, you will call `accountDao.queryForId(Integer)`. As @Tomas mentioned, you need to define your DOA with something like: ``` Dao accountDao = getDao(Account.class); ``` Then you can query for `Account` by a `String` id: ``` Account account = accountDao.queryForId("John Smith"); ```

Query for id needs integer parameter

Solution

Problem