function onSearch(oEvent) {
		const sReason = oEvent.getParameter('reason');
		const oFilter = oEvent.getSource();
		const bForceRefresh = oFilter.getLiveMode && (oFilter.getLiveMode() ? sReason === ReasonMode.Enter : sReason === ReasonMode.Go);

		this._rebind(bForceRefresh);
		if (this._onFilterSearch) {
			this._onFilterSearch(oEvent);
		}
	}
Event handler that is attached to the <code>search</code>
event of the IFilter implementing instance. The handler
triggers rebind and calls the _onFilterSearch hook.

@param {object} oEvent Event object