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public static interface Container.Indexed
Interface for Container classes whose Items can be accessed by
their position in the container.
If the container is filtered or sorted, all indices refer to the filtered
and sorted view. However, the addItemAt() methods may add
items that will be filtered out after addition or moved to another
position based on sorting.
| Nested Class Summary |
|---|
| Nested classes/interfaces inherited from interface com.vaadin.data.Container |
|---|
Container.Editor, Container.Filter, Container.Filterable, Container.Hierarchical, Container.Indexed, Container.ItemSetChangeEvent, Container.ItemSetChangeListener, Container.ItemSetChangeNotifier, Container.Ordered, Container.PropertySetChangeEvent, Container.PropertySetChangeListener, Container.PropertySetChangeNotifier, Container.SimpleFilterable, Container.Sortable, Container.Viewer |
| Method Summary | |
|---|---|
Object |
addItemAt(int index)
Adds a new item at given index (in the filtered view). |
Item |
addItemAt(int index,
Object newItemId)
Adds a new item at given index (in the filtered view). |
Object |
getIdByIndex(int index)
Gets the ID of an Item by an index number. |
int |
indexOfId(Object itemId)
Gets the index of the Item corresponding to the itemId. |
| Methods inherited from interface com.vaadin.data.Container.Ordered |
|---|
addItemAfter, addItemAfter, firstItemId, isFirstId, isLastId, lastItemId, nextItemId, prevItemId |
| Methods inherited from interface com.vaadin.data.Container |
|---|
addContainerProperty, addItem, addItem, containsId, getContainerProperty, getContainerPropertyIds, getItem, getItemIds, getType, removeAllItems, removeContainerProperty, removeItem, size |
| Method Detail |
|---|
int indexOfId(Object itemId)
true for the returned index: 0 <= index < size(), or
index = -1 if there is no visible item with that id in the container.
itemId - ID of an Item in the Container
Object getIdByIndex(int index)
index - Index of the requested id in (the filtered and sorted view
of) the Container
Object addItemAt(int index)
throws UnsupportedOperationException
The indices of the item currently in the given position and all the following items are incremented.
This method should apply filters to the added item after inserting
it, possibly hiding it immediately. If the container is being sorted,
the item may be added at the correct sorted position instead of the
given position. See Container.Indexed, Container.Ordered,
Container.SimpleFilterable and Container.Sortable for more information.
index - Index (in the filtered and sorted view) to add the new
item.
UnsupportedOperationException - if the operation is not supported by the container
Item addItemAt(int index,
Object newItemId)
throws UnsupportedOperationException
The indexes of the item currently in the given position and all the following items are incremented.
This method should apply filters to the added item after inserting
it, possibly hiding it immediately. If the container is being sorted,
the item may be added at the correct sorted position instead of the
given position. See Container.Indexed, Container.SimpleFilterable and
Container.Sortable for more information.
index - Index (in the filtered and sorted view) at which to add
the new item.newItemId - Id of the new item to be added.
Item or null if the operation fails.
UnsupportedOperationException - if the operation is not supported by the container
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