static SearchQuery <tRow> fullTextQuery <tRow>(iTypeSerializer ser, ParameterExpression eRecord, ParameterExpression eArgument, Expression eLeft, Expression eRight, int argsCount) where tRow : new()
{
HasParam hp = new HasParam(eRecord);
bool leftParam = hp.hasParameter(eLeft);
if (!leftParam)
{
throw new NotSupportedException("Full-text queries must have column as the first argument");
}
MemberInfo column = parseColumn(eRecord, eLeft);
bool rightParam = hp.hasParameter(eRight);
if (rightParam)
{
throw new NotSupportedException("Full-text queries can't include column in the second argument");
}
Func <object, object> arg = parseConstant(eArgument, eRight);
IndexForColumn[] inds = ser.indicesFromColumn(column);
IndexForColumn ind = inds.FirstOrDefault(i => i.columnIndex == 0 && i.attrib is Attributes.EseTupleIndexAttribute);
if (null == ind)
{
throw new NotSupportedException("Failed to parse full-text search query: no suitable index found");
}
string indName = ind.indexName;
Action <Recordset <tRow>, object> act = (rs, a) => rs.filterFindSubstring(indName, arg(a));
return(new SearchQuery <tRow>(act, argsCount, true));
}
/// <summary>Select the index by name</summary>
public void selectIndex(string name)
{
selectedIndex = indices.FirstOrDefault(ii => ii.indexName == name);
if (null == selectedIndex)
{
throw new ArgumentException("Index {0} not found".formatWith(name));
}
}
