fnContains = function(value) {
			if (value == null) {
				return false;
			}
			if (typeof value != "string") {
				throw new Error("Only \"String\" values are supported for the FilterOperator: \"Contains\".");
			}
			return value.indexOf(oValue1) != -1;
		}
Provides a JS filter function for the given filter.

@param {sap.ui.model.Filter} oFilter The filter to provide the function for

@returns {function} The filter function
@private
@static