/// <summary>
/// Conditionally return the true or false part, dependention on the criterion
/// </summary>
/// <param name="criterion">The criterion.</param>
/// <param name="whenTrue">The when true.</param>
/// <param name="whenFalse">The when false.</param>
/// <returns></returns>
public static AbstractProjection Conditional(AbstractExpression criterion, AbstractProjection whenTrue, AbstractProjection whenFalse)
{
return(new ConditionalProjection(criterion, whenTrue, whenFalse));
}
/// <summary>
/// Return the negation of an expression
/// </summary>
/// <param name="expression">The Expression to negate.</param>
/// <returns>A <see cref="NotExpression" />.</returns>
public static AbstractExpression Not(AbstractExpression expression)
{
return(new NotExpression(expression));
}
/// <summary>
/// Adds an <see cref="AbstractExpression"/> to the list of <see cref="AbstractExpression"/>s
/// to junction together.
/// </summary>
/// <param name="criterion">The <see cref="AbstractExpression"/> to add.</param>
/// <returns>
/// This <see cref="Junction"/> instance.
/// </returns>
public Junction Add(AbstractExpression criterion)
{
_criteria.Add(criterion);
return(this);
}
public CriterionEntry(AbstractExpression expression, Filter filter)
{
_expression = expression;
_filter = filter;
}
/// <summary>
/// Conditionally return the true or false part, dependention on the criterion
/// </summary>
/// <param name="criterion">The criterion.</param>
/// <param name="whenTrue">The when true.</param>
/// <param name="whenFalse">The when false.</param>
/// <returns></returns>
public static AbstractProjection Conditional(AbstractExpression criterion, AbstractProjection whenTrue, AbstractProjection whenFalse)
{
return new ConditionalProjection(criterion, whenTrue, whenFalse);
}
/// <summary>
/// Adds an <see cref="AbstractExpression"/> to the list of <see cref="AbstractExpression"/>s
/// to junction together.
/// </summary>
/// <param name="criterion">The <see cref="AbstractExpression"/> to add.</param>
/// <returns>
/// This <see cref="Junction"/> instance.
/// </returns>
public Junction Add(AbstractExpression criterion)
{
_criteria.Add(criterion);
return this;
}
/// <summary>
/// Add an Expression to constrain the results to be retrieved. Will be added with "OR"
/// </summary>
/// <param name="expression"></param>
/// <returns></returns>
public virtual IFilter AddOr(AbstractExpression expression)
{
if (_junction == null)
{
_junction = Expression.Disjunction().Add(expression);
}
else
{
_junction = Expression.Disjunction().Add(_junction).Add(expression);
}
return this;
}
public CriterionEntry(AbstractExpression expression, Filter filter)
{
_expression = expression;
_filter = filter;
}
