protected HqlTreeNode(int type, string text, IASTFactory factory, IEnumerable<HqlTreeNode> children)
{
Factory = factory;
_node = factory.CreateNode(type, text);
_children = new List<HqlTreeNode>();
AddChildren(children);
}
protected HqlTreeNode(int type, string text, IASTFactory factory, IEnumerable <HqlTreeNode> children)
{
Factory = factory;
_node = factory.CreateNode(type, text);
_children = new List <HqlTreeNode>();
AddChildren(children);
}
public IASTNode Append(int type, String text, bool appendIfEmpty)
{
if (text != null && (appendIfEmpty || text.Length > 0))
{
return(parent.AddChild(factory.CreateNode(type, text)));
}
return(null);
}
protected HqlTreeNode(int type, string text, IASTFactory factory, params HqlTreeNode[] children)
{
_node = factory.CreateNode(type, text);
_children = new List<HqlTreeNode>();
foreach (var child in children)
{
_children.Add(child);
_node.AddChild(child.AstNode);
}
}
/// <summary>
/// Generates the scalar column AST nodes for a given array of SQL columns
/// </summary>
public static void GenerateScalarColumns(IASTFactory factory, IASTNode node, string[] sqlColumns, int i)
{
if (sqlColumns.Length == 1)
{
GenerateSingleScalarColumn(factory, node, i);
}
else
{
node.Text = sqlColumns[0]; // Use the DOT node to emit the first column name.
// Create the column names, folled by the column aliases.
for (int j = 0; j < sqlColumns.Length; j++)
{
if (j > 0)
{
node = node.AddSibling(factory.CreateNode(HqlSqlWalker.SQL_TOKEN, sqlColumns[j]));
}
node = node.AddSibling(factory.CreateNode(HqlSqlWalker.SELECT_COLUMNS, " as " + NameGenerator.ScalarName(i, j)));
}
}
}
/// <summary>
/// Generates the scalar column AST nodes for a given array of SQL columns
/// </summary>
public static void GenerateScalarColumns(IASTFactory factory, IASTNode node, string[] sqlColumns, int i)
{
if (sqlColumns.Length == 1)
{
GenerateSingleScalarColumn(factory, node, i);
}
else
{
node.Text = sqlColumns[0]; // Use the DOT node to emit the first column name.
// Create the column names, folled by the column aliases.
for (int j = 0; j < sqlColumns.Length; j++)
{
if (j > 0)
{
node = node.AddSibling(factory.CreateNode(HqlSqlWalker.SQL_TOKEN, sqlColumns[j]));
}
node = node.AddSibling(factory.CreateNode(HqlSqlWalker.SELECT_COLUMNS, " as " + NameGenerator.ScalarName(i, j)));
}
}
}
/// <summary>
/// Turns a path into an AST.
/// </summary>
/// <param name="path">The path.</param>
/// <param name="factory">The AST factory to use.</param>
/// <returns>An HQL AST representing the path.</returns>
public static IASTNode ParsePath(string path, IASTFactory factory)
{
string[] identifiers = StringHelper.Split(".", path);
IASTNode lhs = null;
for (int i = 0; i < identifiers.Length; i++)
{
string identifier = identifiers[i];
IASTNode child = factory.CreateNode(HqlSqlWalker.IDENT, identifier);
if (i == 0)
{
lhs = child;
}
else
{
lhs = factory.CreateNode(HqlSqlWalker.DOT, ".", lhs, child);
}
}
if (log.IsDebugEnabled)
{
log.Debug("parsePath() : " + path + " -> " + ASTUtil.GetDebugstring(lhs));
}
return lhs;
}
/// <summary>
/// Turns a path into an AST.
/// </summary>
/// <param name="path">The path.</param>
/// <param name="factory">The AST factory to use.</param>
/// <returns>An HQL AST representing the path.</returns>
public static IASTNode ParsePath(string path, IASTFactory factory)
{
string[] identifiers = StringHelper.Split(".", path);
IASTNode lhs = null;
for (int i = 0; i < identifiers.Length; i++)
{
string identifier = identifiers[i];
IASTNode child = factory.CreateNode(HqlSqlWalker.IDENT, identifier);
if (i == 0)
{
lhs = child;
}
else
{
lhs = factory.CreateNode(HqlSqlWalker.DOT, ".", lhs, child);
}
}
if (log.IsDebugEnabled())
{
log.Debug("parsePath() : {0} -> {1}", path, ASTUtil.GetDebugstring(lhs));
}
return(lhs);
}
public static void GenerateSingleScalarColumn(IASTFactory factory, IASTNode node, int i)
{
node.AddSibling(factory.CreateNode(HqlSqlWalker.SELECT_COLUMNS, " as " + NameGenerator.ScalarName(i, 0)));
}
public static void GenerateSingleScalarColumn(IASTFactory factory, IASTNode node, int i)
{
node.AddSibling(factory.CreateNode(HqlSqlWalker.SELECT_COLUMNS, " as " + NameGenerator.ScalarName(i, 0)));
}
