internal static ObjectQueryState Top(
ObjectQueryState query,
string alias,
string count,
ObjectParameter[] parameters)
{
int length = count.Length;
string commandText = EntitySqlQueryBuilder.GetCommandText(query);
bool allowsLimitSubclause = ((EntitySqlQueryState)query).AllowsLimitSubclause;
StringBuilder queryText = new StringBuilder(!allowsLimitSubclause ? length + ("SELECT VALUE TOP(\r\n".Length + "\r\n) ".Length + alias.Length + "\r\nFROM (\r\n".Length + commandText.Length + "\r\n) AS ".Length + alias.Length) : length + (commandText.Length + "\r\nLIMIT\r\n".Length));
if (allowsLimitSubclause)
{
queryText.Append(commandText);
queryText.Append("\r\nLIMIT\r\n");
queryText.Append(count);
}
else
{
queryText.Append("SELECT VALUE TOP(\r\n");
queryText.Append(count);
queryText.Append("\r\n) ");
queryText.Append(alias);
queryText.Append("\r\nFROM (\r\n");
queryText.Append(commandText);
queryText.Append("\r\n) AS ");
queryText.Append(alias);
}
return(EntitySqlQueryBuilder.NewBuilderQuery(query, query.ElementType, queryText, query.Span, (IEnumerable <ObjectParameter>)EntitySqlQueryBuilder.MergeParameters(query.ObjectContext, query.Parameters, parameters)));
}
internal static ObjectQueryState GroupBy(
ObjectQueryState query,
string alias,
string keys,
string projection,
ObjectParameter[] parameters)
{
string commandText = EntitySqlQueryBuilder.GetCommandText(query);
StringBuilder queryText = new StringBuilder("SELECT ".Length + projection.Length + "\r\nFROM (\r\n".Length + commandText.Length + "\r\n) AS ".Length + alias.Length + "\r\nGROUP BY\r\n".Length + keys.Length);
queryText.Append("SELECT ");
queryText.Append(projection);
queryText.Append("\r\nFROM (\r\n");
queryText.Append(commandText);
queryText.Append("\r\n) AS ");
queryText.Append(alias);
queryText.Append("\r\nGROUP BY\r\n");
queryText.Append(keys);
return(EntitySqlQueryBuilder.NewBuilderQuery(query, typeof(DbDataRecord), queryText, (Span)null, (IEnumerable <ObjectParameter>)EntitySqlQueryBuilder.MergeParameters(query.ObjectContext, query.Parameters, parameters)));
}
private static ObjectQueryState BuildSelectOrSelectValue(
ObjectQueryState query,
string alias,
string projection,
ObjectParameter[] parameters,
string projectOp,
Type elementType)
{
string commandText = EntitySqlQueryBuilder.GetCommandText(query);
StringBuilder queryText = new StringBuilder(projectOp.Length + projection.Length + "\r\nFROM (\r\n".Length + commandText.Length + "\r\n) AS ".Length + alias.Length);
queryText.Append(projectOp);
queryText.Append(projection);
queryText.Append("\r\nFROM (\r\n");
queryText.Append(commandText);
queryText.Append("\r\n) AS ");
queryText.Append(alias);
return(EntitySqlQueryBuilder.NewBuilderQuery(query, elementType, queryText, (Span)null, (IEnumerable <ObjectParameter>)EntitySqlQueryBuilder.MergeParameters(query.ObjectContext, query.Parameters, parameters)));
}
private static ObjectQueryState BuildOrderByOrWhere(
ObjectQueryState query,
string alias,
string predicateOrKeys,
ObjectParameter[] parameters,
string op,
string skipCount,
bool allowsLimit)
{
string commandText = EntitySqlQueryBuilder.GetCommandText(query);
int capacity = "SELECT VALUE ".Length + alias.Length + "\r\nFROM (\r\n".Length + commandText.Length + "\r\n) AS ".Length + alias.Length + op.Length + predicateOrKeys.Length;
if (skipCount != null)
{
capacity += "\r\nSKIP\r\n".Length + skipCount.Length;
}
StringBuilder queryText = new StringBuilder(capacity);
queryText.Append("SELECT VALUE ");
queryText.Append(alias);
queryText.Append("\r\nFROM (\r\n");
queryText.Append(commandText);
queryText.Append("\r\n) AS ");
queryText.Append(alias);
queryText.Append(op);
queryText.Append(predicateOrKeys);
if (skipCount != null)
{
queryText.Append("\r\nSKIP\r\n");
queryText.Append(skipCount);
}
return(EntitySqlQueryBuilder.NewBuilderQuery(query, query.ElementType, queryText, allowsLimit, query.Span, (IEnumerable <ObjectParameter>)EntitySqlQueryBuilder.MergeParameters(query.ObjectContext, query.Parameters, parameters)));
}
private static ObjectQueryState BuildSetOp(
ObjectQueryState leftQuery,
ObjectQueryState rightQuery,
Span newSpan,
string setOp)
{
string commandText1 = EntitySqlQueryBuilder.GetCommandText(leftQuery);
string commandText2 = EntitySqlQueryBuilder.GetCommandText(rightQuery);
if (!object.ReferenceEquals((object)leftQuery.ObjectContext, (object)rightQuery.ObjectContext))
{
throw new ArgumentException(Strings.ObjectQuery_QueryBuilder_InvalidQueryArgument, "query");
}
StringBuilder queryText = new StringBuilder("(\r\n".Length + commandText1.Length + setOp.Length + commandText2.Length + "\r\n)".Length);
queryText.Append("(\r\n");
queryText.Append(commandText1);
queryText.Append(setOp);
queryText.Append(commandText2);
queryText.Append("\r\n)");
return(EntitySqlQueryBuilder.NewBuilderQuery(leftQuery, leftQuery.ElementType, queryText, newSpan, (IEnumerable <ObjectParameter>)EntitySqlQueryBuilder.MergeParameters(leftQuery.Parameters, rightQuery.Parameters)));
}