[jira] [Closed] (COLLECTIONS-694) Support for Transformer in LazyList

["Gary Gregory (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/COLLECTIONS-694?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gary Gregory closed COLLECTIONS-694.
------------------------------------
       Resolution: Fixed
    Fix Version/s: 4.4

In git master.

> Support for Transformer in LazyList
> -----------------------------------
>
>                 Key: COLLECTIONS-694
>                 URL: https://issues.apache.org/jira/browse/COLLECTIONS-694
>             Project: Commons Collections
>          Issue Type: Improvement
>          Components: List
>    Affects Versions: 4.2
>            Reporter: Stephan Windmüller
>            Priority: Minor
>             Fix For: 4.4
>
>          Time Spent: 2.5h
>  Remaining Estimate: 0h
>
> {{LazyList}} supports a {{Factory}} for creating new elements on first access. Since a {{Factory}} does not take any arguments, those elements can not depend on any input values.
> A possible use case is a list of objects from a database, fetched by their id. If an element at a specific position is requested, it is retrieved from the database lazily. This would require support of a {{Transformer}} (from id to database object).



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