// Get the data //
public static DataSet GetData(Workspace Enviro, HScriptParser.Full_table_nameContext context)
{
// Get the name //
string t_name = context.table_name().IDENTIFIER().GetText();
// Global context //
if (context.K_GLOBAL() != null)
{
if (Enviro.ChunkHeap.Exists(t_name))
return Enviro.ChunkHeap[t_name];
throw new HScriptCompileException("Global chunk '{0}' does not exist", t_name);
}
// Table context //
if (context.database_name() != null)
{
string d_base = context.database_name().IDENTIFIER().GetText();
if (Enviro.Exists(d_base, t_name))
return Enviro.GetStaticTable(d_base, t_name);
throw new HScriptCompileException("Table '{0}' does not exist", t_name);
}
throw new HScriptCompileException("Data '{0}' does not exist in memory or on disk", t_name);
}
public static DataSet CreateData(Workspace Enviro, Schema Columns, HScriptParser.Full_table_nameContext context)
{
// Get the name //
string t_name = context.table_name().IDENTIFIER().GetText();
// Global context //
if (context.database_name() == null)
{
RecordSet rs = new RecordSet(Columns);
Enviro.ChunkHeap.Reallocate(t_name, rs);
return rs;
}
// Table context //
if (context.database_name() != null)
{
string d_base = context.database_name().IDENTIFIER().GetText();
if (!Enviro.Connections.Exists(d_base))
throw new HScriptCompileException("Connection to '{0}' does not exist", d_base);
string dir = Enviro.Connections[d_base];
Table t = new Table(dir, t_name, Columns);
return t;
}
throw new HScriptCompileException("Cannot create data '{0}'", t_name);
}
// Create data //
public static bool DataExists(Workspace Enviro, HScriptParser.Full_table_nameContext context)
{
// Get the name //
string t_name = context.table_name().IDENTIFIER().GetText();
// Global context //
if (context.database_name() == null)
{
return Enviro.ChunkHeap.Exists(t_name);
}
// Table context //
if (context.database_name() != null)
{
string d_base = context.database_name().IDENTIFIER().GetText();
return Enviro.Exists(d_base, t_name);
}
return false;
}
