Performance problem for the ADF calendar

Hello

We intend to apply the calendar adf for one of our customers. They will use the calendar as a planner. There will be at least 350-500 activities for a provider and a month.

We are filtering of calendar data by selecting provider from the drop-down list box. However, execution of the view object takes about 4-5 seconds and activities appear 15 seconds. Total waiting time may be 20 seconds.

How can I improve performance? Customer will use the calendar as a scheduler of tasks online. Therefore, it must be very fast.

JDeveloper Version: 11.1.1.6.0

Please note that all the components are bind to the backup of the attributes of bean whose calendar itself jsff layout.

Steps for filtering:

1 combo box action in backing bean:

    public void onResourceChange(ValueChangeEvent valueChangeEvent) {
        valueChangeEvent.getComponent().processUpdates(FacesContext.getCurrentInstance());
        if (valueChangeEvent.getNewValue() != null) {
            if(valueChangeEvent.getNewValue() != valueChangeEvent.getOldValue()) {
                applyFilter();
            }
        }
        else {
            removeFilter();
        }   
        
        RequestContext context = RequestContext.getCurrentInstance(); 
        context.addPartialTarget(getC1());
    }

2 ApplyFilter and removeFilter in backing bean methods:

    private void applyFilter() {
        DCBindingContainer dcbindings = (DCBindingContainer)ADFUtils.getBindingContainer();
        XxntcCalendarAMImpl am = (XxntcCalendarAMImpl)dcbindings.getDataControl().getApplicationModule(); 
        DCIteratorBinding garageIterator = ADFUtils.findIterator("XxntcGarageInfoVO1Iterator");
        Row currentGarageRow = garageIterator.getCurrentRow();
        Number resourceId = (Number)currentGarageRow.getAttribute("ResourceId");
        am.applyCalendarFilter(resourceId);        
    }
    
    private void removeFilter() {
        DCBindingContainer dcbindings = (DCBindingContainer)ADFUtils.getBindingContainer();
        XxntcCalendarAMImpl am = (XxntcCalendarAMImpl)dcbindings.getDataControl().getApplicationModule();  
        am.removeFilter();
    }

3. the application model Impl applyCalendarFilter removeFilter methods and

    public void applyCalendarFilter(Number resourceId) {
        XxntcServiceCalendarEOVOImpl calendarVo = (XxntcServiceCalendarEOVOImpl)getXxntcServiceCalendarEOVO1();
        System.out.println(new java.util.Date());
        ViewCriteria vc = calendarVo.createViewCriteria();
        vc.setName("fiterCalendar");
        ViewCriteriaRow vcRow = vc.createViewCriteriaRow();
        vcRow.setAttribute("ResourceId", "= " + resourceId);
        vc.insertRow(vcRow);
        calendarVo.appendViewCriteria(vc);
        calendarVo.executeQuery();
        
        /*calendarVo.setWhereClause(null);
        calendarVo.setWhereClause("RESOURCE_ID = :pResourceId");
        calendarVo.defineNamedWhereClauseParam("pResourceId", null, null);
        calendarVo.setNamedWhereClauseParam("pResourceId",resourceId);         
        calendarVo.executeQuery();*/
        System.out.println(new java.util.Date());
    }
    
    public void removeFilter() {
        XxntcServiceCalendarEOVOImpl calendarVo = (XxntcServiceCalendarEOVOImpl)getXxntcServiceCalendarEOVO1();
        calendarVo.removeApplyViewCriteriaName("fiterCalendar");
        //calendarVo.removeNamedWhereClauseParam("pResourceId");
        calendarVo.executeQuery();
    }

Kind regards

Anil

Hi all

Problem is solved.

There are three important points for the solution.

1 oracle has proposed to use a separate iterator for suppliers. Here is the explanation of SR Oracle:

@ The iterator binding of the calendar and the iterator binding of the

@ suppliers are the same, there is no point at all. Normally, the

@ the iterator binding calendar is for the events calendar and the provider

@ the iterator is on another iterator which gives information about the provider, the

@ provider in the timing of the event is the foreign key to the iterator of provider.

@You need to create a table for the vendor and then set object entity / view

@ the object on the table, an iterator will be generated. The provider_id in the

@ event table should be the foreign key to the table of the provider and the

@ providerDefinition must point to the iterator of the vo provider.

@ You cannot use the same table to set the calendar events and providers,

@ This just doesn't make sense.

2. I am able to set the iterator range size if I use a separate iterator for suppliers. Otherwise, ADF throws it npe: ' java.lang.NullPointerException: ADFv: calendar activity Id and Vendor Id cannot be null. "

3. I forgot to use parameters of connection (StartDayTime, EndDayTime and time zones) in my query where clause. Creation of a criteria like this where clause "((HrCalendarEvents.START_TIME > =: StartDayTime) AND (HrCalendarEvents.END_TIME)"<= :enddaytime="" )="" )="" "="" solves="" fetching="" all="" rows="" problem.="" now="" it="" fetches="" just="" current="" time="">

Kind regards

Anil

Tags: Java

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[of]
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