/// <summary>
/// Adds a boolean condition to the SearchCondition with an "OR" operator.
/// If the SearchCondition is empty the "OR" operator is not added.
/// </summary>
/// <param name="predicate">Predicate to be added to the SearchCondition. <b>Null</b> is not allowed.</param>
public void Or(PredicateBase predicate)
{
if (predicate == null)
throw new ArgumentNullException("predicate", Messages.SearchCondition_PredicateMayNotBeNull);
if (!this.IsEmpty)
this.predicateExpression.Add(ConditionOperator.Or);
this.predicateExpression.Add(predicate);
}
/// <summary>
/// Initializes a new instance of the SearchCondition class.
/// </summary>
/// <param name="firstPredicate">First/initial predicate added to the search condition.</param>
public SearchCondition(PredicateBase firstPredicate)
{
Add(firstPredicate);
}
/// <summary>
/// Adds a boolean condition to the SearchCondition.
/// If the SearchCondition is not empty then the expression is added with an "AND" operator.
/// Essentially, same as <see cref="And(PredicateBase)"/>.
/// </summary>
/// <param name="predicate">Predicate to be added to the SearchCondition. <b>Null</b> is not allowed.</param>
public void Add(PredicateBase predicate)
{
And(predicate);
}
/// <summary>
/// Converts a predicate to a search condition.
/// </summary>
/// <param name="predicate">Predicate.</param>
/// <returns>Search condition which contains the given predicate.</returns>
public static SearchCondition ToSearchCondition(PredicateBase predicate)
{
return new SearchCondition(predicate);
}