adds a new filtering rule to collection.
<!--- some_field LIKE "%abc%" --->
<cfset filter.add("name","value")>
<!--- some_field < 5 --->
<cfset filter.add("name","value","comp_oper")>
Parameters:
clears collection (deletes all specified filtering rules).
<cfset filter.clear()>
Parameters:
check if there are some rules in collection for the specified field and returns related hash.
<cfset index=filter.index("some_field")>
Parameters:
name - name of the field Returns:
true - if collection contains rule(s) for the specified field.
array of all specified sorting rules.
<cfset name = filter.rules[1]["name"]>
<cfset filter.rules[1]["value"]="cde">
Properties: