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https://issues.apache.org/jira/browse/JENA-1107?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andy Seaborne resolved JENA-1107.
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Resolution: Fixed
Fix Version/s: Jena 3.1.0
> Improve jena-base lib.Tuple
> ---------------------------
>
> Key: JENA-1107
> URL: https://issues.apache.org/jira/browse/JENA-1107
> Project: Apache Jena
> Issue Type: Improvement
> Reporter: Andy Seaborne
> Assignee: Andy Seaborne
> Priority: Minor
> Fix For: Jena 3.1.0
>
>
> Tuples, which are immutable, value-equality fixed length sequences of
> instances of the same type, accessed by index.
> They are like {{T[]}} but immutable, with .equals based on contents, and
> could be improved to work independently of their original use in TDB.
> Proposal:
> # Make Tuple an interface (simpler than current), with special
> implementations for low number of elements.
> # {{ColumnMap}} ==> {{TupleMap}} and sort out the naming as much as possible
> to use as a way to manage index mapping, not just rewriting Tuples.
> An intermediate step is to move {{ColumnMap}} into TDB.
> This is not a proposal to add it to {{Triple}} or {{Quad}}.
> {{Triple}} is not the same as a 3-length {{Tuple<Node>}}. Triple elements
> are accessed by name ({{getSubject}} etc), not index. SPO is just one
> possible order in which to think about triples but it has no special status.
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