When and which lazyloadcontainer method(event) are called(triggered)?

Vaadin 6 / 7 / 8
1

Lazyload is a simple concept, and easy to understand. But when I look into the api, I could not found the trigger enter point.

2

Could you explain in a little bit more detail what trigger point you are referring to. Also, are you talking about LazyQueryContainer or LazyList in the Viritin addon?

3

These are method Containter interface defined:

    public Item getItem(Object itemId);
    public Collection<?> getContainerPropertyIds();
    public Collection<?> getItemIds();
    public Property getContainerProperty(Object itemId, Object propertyId);

    public Class<?> getType(Object propertyId);
    public int size();

    public boolean containsId(Object itemId);

    public Item addItem(Object itemId) throws UnsupportedOperationException;

    public Object addItem() throws UnsupportedOperationException;

    public boolean removeItem(Object itemId)
            throws UnsupportedOperationException;

    public boolean addContainerProperty(Object propertyId, Class<?> type,
            Object defaultValue) throws UnsupportedOperationException;

    public boolean removeContainerProperty(Object propertyId)
            throws UnsupportedOperationException;

    public boolean removeAllItems() throws UnsupportedOperationException;

My question is which method got called or what event submited when vaadin table scroll to next page.

I want to know the logic path from user scrolling table to container loading items.

4

Just means lazy load concept, not talking to any addons.I perfer to implement my own.

5

Ok, in that case I would suggest that you study the two containers I mentioned in my earlier post. And a word of caution: building a container isn’t an entrirely trivial thing to do, so you may want to consider using an existing container if possible.