Package com.vaadin.data
Class ContainerHelpers
- java.lang.Object
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- com.vaadin.data.ContainerHelpers
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- All Implemented Interfaces:
Serializable
public class ContainerHelpers extends Object implements Serializable
Contains helper methods for containers that can be used to ease development of containers in Vaadin.- Since:
- 7.0
- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description ContainerHelpers()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static List<?>
getItemIdsUsingGetIdByIndex(int startIndex, int numberOfIds, Container.Indexed container)
Get a range of item ids from the container usingContainer.Indexed.getIdByIndex(int)
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Method Detail
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getItemIdsUsingGetIdByIndex
public static List<?> getItemIdsUsingGetIdByIndex(int startIndex, int numberOfIds, Container.Indexed container)
Get a range of item ids from the container usingContainer.Indexed.getIdByIndex(int)
. This is just a helper method to aid developers to quickly add the required functionality to a Container during development. This should not be used in a "finished product" unless fetching an id for an index is very inexpensive because a separate request will be performed for each index in the range.- Parameters:
startIndex
- index of the first item id to getnumberOfIds
- the number of consecutive items whose ids should be returnedcontainer
- the container from which the items should be fetched- Returns:
- A list of item ids in the range specified
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