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https://issues.apache.org/jira/browse/OAK-798?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Dürig updated OAK-798:
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Attachment: OAK-798.patch
Proposed patch to unify {{ReadOnlyTree}} and {{ImmutableTree}}
> Review / refactor TreeImpl and related classes
> ----------------------------------------------
>
> Key: OAK-798
> URL: https://issues.apache.org/jira/browse/OAK-798
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: core
> Reporter: Michael Dürig
> Attachments: OAK-798.patch
>
>
> Now that OAK-781 is nearly complete, I'd like to follow up with pulling the
> new functionality into {{TreeImpl}} and its friends. A rough sketch of what I
> have in mind:
> * -Apply the concept of existence and iterability of nodes to {{Tree}}
> instances. So {{Tree}} would have a method {{exists}} with the same semantics
> as that on {{NodeBuilder}}. Namely non existing trees could be used to
> navigate to its children/parent. But can not be used to iterate
> children/properties nor to modify the tree in any way.- Done at revision
> 1477010
> * -{{TreeLocation}} and its implementations would go away since trees could
> be navigated by its own means now.- Done at revision 1478403.
> * Provide two {{Tree}} implementations: {{MutableTree}} and
> {{ImmutableTree}}. The former would replace {{TreeImpl}} and the latter would
> unify the current {{ReadOnlyTree}} and {{ImmutableTree}} implementations.
> Roughly the former would be based on {{NodeBuilder}} while the latter would
> be based on {{NodeState}}. Only the latter would implement {{equals}} such
> that two such trees are equal when its underlying node states and its names
> are equal.
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