public int Count(DatabaseTableExpression expression)
{
return(DoCommand(delegate(SQLiteCommand command) {
command.CommandText = expression.BuildCount(this, command.Parameters);
return command.ExecuteScalar().Convert <int>();
}));
}
public IEnumerable <DatabaseTableRow> Retrieve(DatabaseTableExpression expression)
{
return(DoCommand(delegate(SQLiteCommand command) {
command.CommandText = expression.BuildSelect(this, command.Parameters);
List <DatabaseTableRow> rows = new List <DatabaseTableRow>();
using (SQLiteDataReader reader = command.ExecuteReader())
{
while (reader.Read())
{
rows.Add(new DatabaseTableRow(reader, this));
}
}
return rows;
}));
}
static public DatabaseTableExpression NotEqualsExpression(this DatabaseTableExpression item, DatabaseTableExpression expression)
{
return(new DatabaseTableExpression_Operation_Binary_NotEquals(item, expression));
}
static public DatabaseTableExpression ContainsExpression(this DatabaseTableExpression item, DatabaseTableExpression expression)
{
return(new DatabaseTableExpression_Operation_Binary_Contains(item, expression));
}
static public DatabaseTableExpression ContainsExpression(this DatabaseTableField item, DatabaseTableExpression expression)
{
return(item.GetExpression().ContainsExpression(expression));
}
public DatabaseTableExpression_Operation_Binary_LogicalOr(DatabaseTableExpression l, DatabaseTableExpression r)
: base("?LEFT OR ?RIGHT", l, r)
{
}
static public DatabaseTableExpression NotEqualsExpression(this DatabaseTableField item, DatabaseTableExpression expression)
{
return(item.GetExpression().NotEqualsExpression(expression));
}
public DatabaseTableExpression_Operation_Binary_Multiply(DatabaseTableExpression l, DatabaseTableExpression r)
: base("?LEFT * ?RIGHT", l, r)
{
}
public DatabaseTableExpression_Operation_Binary_Divide(DatabaseTableExpression l, DatabaseTableExpression r)
: base("?LEFT / ?RIGHT", l, r)
{
}
public DatabaseTableExpression_Operation_Binary_Subtract(DatabaseTableExpression l, DatabaseTableExpression r)
: base("?LEFT - ?RIGHT", l, r)
{
}
public DatabaseTableExpression_Operation_Binary_Add(DatabaseTableExpression l, DatabaseTableExpression r)
: base("?LEFT + ?RIGHT", l, r)
{
}
public DatabaseTableExpression_Operation_Binary_Contains(DatabaseTableExpression l, DatabaseTableExpression r)
: base("?LEFT LIKE '%'||?RIGHT||'%'", l, r)
{
}
public DatabaseTableExpression_Operation_Binary_NotEquals(DatabaseTableExpression l, DatabaseTableExpression r)
: base("?LEFT != ?RIGHT", l, r)
{
}
public DatabaseTableExpression_Operation_Binary(string lo, DatabaseTableExpression l, DatabaseTableExpression r) : base(lo)
{
left = l;
right = r;
}
