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From "Niall Pemberton (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CHAIN-40) ContextBase should use LinkedHashMap
Date Tue, 20 May 2008 21:38:55 GMT

    [ https://issues.apache.org/jira/browse/CHAIN-40?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12598487#action_12598487
] 

Niall Pemberton commented on CHAIN-40:
--------------------------------------

Requires moving Commons Chain to a mimimum of JDK 1.4

> ContextBase should use LinkedHashMap
> ------------------------------------
>
>                 Key: CHAIN-40
>                 URL: https://issues.apache.org/jira/browse/CHAIN-40
>             Project: Commons Chain
>          Issue Type: Improvement
>            Reporter: Cédric BODIN
>            Priority: Minor
>
> org.apache.commons.chain.impl.ContextBase should use java.util.LinkedHashMap (instead
of java.util.HashMap) : as its superclass,  and as the java.util.Map implementation for its
"descriptors" attribute.
> Indeed LinkedHashMap allow "insertion-order" iteration over the context, which is an
additional information about the chain execution (to know the order of the commands into the
chain).
> Moreover LinkedHashMap is a HashMap : so this enhancement is "transparent" for users
who didn't/don't/won't want to presume about context's iteration order.
> Thanks in advance.
> Cédric BODIN

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