I never knew. Thanks for the precious tip!
I used the Eclipse default methods and they seem applicable. To be picky, 
```
        if (mDbName == null) {
            if (other.mDbName != null)
                return false;
```
and
```
        if (mTableName == null) {
            if (other.mTableName != null)
                return false;
```
are really deadcode because of the validation on the db and table name I am adding in my next patch but it doesn't hurt and it can stay for unit-testability.