/// <summary>
/// Add a Where clause to a query; may need to create a new query.
/// </summary>
/// <param name="whereClause">Clause to add.</param>
/// <param name="elementType">Type of element in input collection.</param>
/// <param name="inScope">Set of parameter names in scope.</param>
/// <returns>A new query containing the specified Where clause.</returns>
public QueryUnderConstruction AddWhereClause(SqlWhereClause whereClause, Type elementType, HashSet <ParameterExpression> inScope)
{
QueryUnderConstruction.ValidateNonSubquerySupport(this);
QueryUnderConstruction result = this;
if (this.selectClause != null)
{
result = this.PackageQuery(inScope);
}
whereClause = QueryUnderConstruction.CombineWithConjunction(result.whereClause, whereClause);
result.whereClause = whereClause;
return(result);
}
public QueryUnderConstruction AddOrderByClause(SqlOrderbyClause orderBy, HashSet <ParameterExpression> inScope)
{
QueryUnderConstruction.ValidateNonSubquerySupport(this);
QueryUnderConstruction result = this;
if (this.selectClause != null)
{
result = this.PackageQuery(inScope);
}
if (result.orderByClause != null)
{
throw new DocumentQueryException("Multiple OrderBy is not supported.");
}
result.orderByClause = orderBy;
return(result);
}
/// <summary>
/// Add a Select clause to a query; may need to create a new subquery.
/// </summary>
/// <param name="select">Select clause to add.</param>
/// <param name="inputElementType">Type of element in the input collection.</param>
/// <param name="outputElementType">Type of element in output collection.</param>
/// <param name="inScope">Set of parameter names in scope.</param>
/// <returns>A new query containing a select clause.</returns>
public QueryUnderConstruction AddSelectClause(SqlSelectClause select, Type inputElementType, Type outputElementType, HashSet <ParameterExpression> inScope)
{
if (select.HasDistinct)
{
QueryUnderConstruction.ValidateNonSubquerySupport(this);
}
QueryUnderConstruction result = this;
if (this.selectClause != null)
{
result = this.PackageQuery(inScope);
}
if (result.selectClause != null)
{
throw new DocumentQueryException("Internal error: attempting to overwrite SELECT clause");
}
result.selectClause = select;
return(result);
}
