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From Cédric BODIN (JIRA) <>
Subject [jira] Created: (CHAIN-40) ContextBase should use LinkedHashMap
Date Wed, 10 Oct 2007 13:33:50 GMT
ContextBase should use LinkedHashMap

                 Key: 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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