/// <summary>
/// Returns an <see cref="IDataExistenceChecker{TEntity}"/> for checking is some <typeparamref name="TEntity"/> exists in database.
/// </summary>
public IDataExistenceChecker <TEntity> Any <TEntity>() where TEntity : class
{
var type = RUtils <TEntity> .Type;
object checker;
if (_existenceCheckers.TryGetValue(type, out checker))
{
return((IDataExistenceChecker <TEntity>)checker);
}
var existenceChecker = _factory.DataExistenceChecker <TEntity>();
if (!_existenceCheckers.TryAdd(type, existenceChecker))
{
return((IDataExistenceChecker <TEntity>)_getters[type]);
}
return(existenceChecker);
}
/// <summary>
/// Instantinate an <see cref="IDataExistenceChecker{TEntity}"/>.
/// This method will be called one time for every <typeparamref name="TEntity"/>.
/// </summary>
public IDataExistenceChecker <TEntity> DataExistenceChecker <TEntity>() where TEntity : class
{
return(_factory.DataExistenceChecker <TEntity>());
}