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From "Arjuna Wijeyekoon (JIRA)" <>
Subject [jira] Created: (ADFFACES-272) Read-Only Table Optimization
Date Wed, 01 Nov 2006 00:49:20 GMT
Read-Only Table Optimization

                 Key: ADFFACES-272
             Project: MyFaces ADF-Faces
          Issue Type: Improvement
            Reporter: Arjuna Wijeyekoon
            Priority: Minor

For an entirely read-only table that also does not contain a per-row button or link, we can
significantly optimize postback to avoid per-row iteration altogether.

UIXCollection knows all about the types of its stamp children - it does this when it walks
the children looking to save/restore each child's internal state
while stamping each row.
So if it finds that there are no EditableValueHolders or ActionSources or any other component
that has internal state, it can optimize postback by 
entirely skipping the decode/validate/update phases on its children.

When I originally profiled the read-only table, I got the following aproximate time distribution
decode: ~10%
validate: ~10%
update: ~10%
encode: ~50%

So I think it will be a significant performance improvement for a user browsing (and paging)
a read-only table.

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