/// <summary>Limits the query to results that match specified filtering criteria.</summary>
/// <returns>
/// A new <see cref="T:System.Data.Entity.Core.Objects.ObjectQuery`1" /> instance that is equivalent to the original instance with WHERE applied.
/// </returns>
/// <param name="predicate">The filter predicate.</param>
/// <param name="parameters">Zero or more parameters that are used in this method.</param>
/// <exception cref="T:System.ArgumentNullException"> predicate is null or parameters is null.</exception>
/// <exception cref="T:System.ArgumentException">The predicate is an empty string.</exception>
public ObjectQuery <T> Where(string predicate, params ObjectParameter[] parameters)
{
Check.NotEmpty(predicate, "predicate");
Check.NotNull(parameters, "parameters");
return(new ObjectQuery <T>(EntitySqlQueryBuilder.Where(QueryState, Name, predicate, parameters)));
}
/// <summary>
/// This query-builder method creates a new query whose results are the
/// results of this query filtered by some criteria.
/// </summary>
/// <param name="predicate">
/// The filter predicate.
/// </param>
/// <param name="parameters">
/// An optional set of query parameters that should be in scope when parsing.
/// </param>
/// <returns>
/// a new ObjectQuery instance.
/// </returns>
/// <exception cref="ArgumentNullException">
/// If either argument is null.
/// </exception>
/// <exception cref="ArgumentException">
/// If the filter predicate command text is empty.
/// </exception>
public ObjectQuery <T> Where(string predicate, params ObjectParameter[] parameters)
{
EntityUtil.CheckArgumentNull(predicate, "predicate");
EntityUtil.CheckArgumentNull(parameters, "parameters");
if (StringUtil.IsNullOrEmptyOrWhiteSpace(predicate))
{
throw EntityUtil.Argument(System.Data.Entity.Strings.ObjectQuery_QueryBuilder_InvalidFilterPredicate, "predicate");
}
return(new ObjectQuery <T>(EntitySqlQueryBuilder.Where(this.QueryState, this.Name, predicate, parameters)));
}
/// <summary>Limits the query to results that match specified filtering criteria.</summary>
/// <returns>
/// A new <see cref="T:System.Data.Entity.Core.Objects.ObjectQuery`1" /> instance that is equivalent to the original instance with WHERE applied.
/// </returns>
/// <param name="predicate">The filter predicate.</param>
/// <param name="parameters">Zero or more parameters that are used in this method.</param>
/// <exception cref="T:System.ArgumentNullException"> predicate is null or parameters is null.</exception>
/// <exception cref="T:System.ArgumentException">The predicate is an empty string.</exception>
public ObjectQuery <T> Where(string predicate, params ObjectParameter[] parameters)
{
Check.NotEmpty(predicate, nameof(predicate));
Check.NotNull <ObjectParameter[]>(parameters, nameof(parameters));
return(new ObjectQuery <T>(EntitySqlQueryBuilder.Where(this.QueryState, this.Name, predicate, parameters)));
}
