public override FilteringExpression ToFilteringExpression(ParameterExpression parameterExpression)
{
var filteringExpressions = Filters.Select(x => x.ToFilteringExpression(parameterExpression)).ToList();
FilteringExpression filteringExpression = null;
foreach (var currentExpression in filteringExpressions)
{
if (filteringExpression == null)
{
filteringExpression = currentExpression;
continue;
}
filteringExpression = filteringExpression.ConnectTo(currentExpression);
}
return(filteringExpression.WithLogicalConnection(LogicalConnection.GetExpression()));
}
public SimpleFilter(LogicalConnection logicalConnection, string propertyName, FilteringOperator filteringOperator, object searchValue)
{
if (string.IsNullOrWhiteSpace(propertyName))
{
throw new ArgumentException($"{propertyName} can not be empty", nameof(propertyName));
}
if (filteringOperator == null)
{
throw new ArgumentNullException(nameof(filteringOperator));
}
if (logicalConnection == null)
{
throw new ArgumentNullException(nameof(logicalConnection));
}
PropertyName = propertyName;
Operator = filteringOperator;
SearchValue = searchValue;
LogicalConnection = logicalConnection;
}
public abstract Filter WithLogicalConnection(LogicalConnection logicalConnection);
public override Filter WithLogicalConnection(LogicalConnection logicalConnection)
{
return(new ScopedFilter(logicalConnection, Filters.ToArray()));
}
public ScopedFilter(LogicalConnection logicalConnection, params Filter[] filters)
{
LogicalConnection = logicalConnection;
Filters = filters;
}
public override Filter WithLogicalConnection(LogicalConnection logicalConnection)
{
return(new SimpleFilter(logicalConnection, PropertyName, Operator, SearchValue));
}