[jira] [Commented] (OAK-753) TreeImpl exposes hidden child trees

["Michael Dürig (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OAK-753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13670196#comment-13670196 ] 

Michael Dürig commented on OAK-753:
-----------------------------------

Couldn't we expose hidden items in {{Tree}} similar to how we handle non existent nodes? E.g. iterating over the properties of an orderable node wouldn't yield the {{OAK_CHILD_ORDER}} property. However directly accessing it by name would succeed. In this way we could access hidden items above the {{Tree}} API but such items wouldn't be accessible through JCR simply because a name starting with a colon is not a valid JCR name.
                
> TreeImpl exposes hidden child trees
> -----------------------------------
>
>                 Key: OAK-753
>                 URL: https://issues.apache.org/jira/browse/OAK-753
>             Project: Jackrabbit Oak
>          Issue Type: Task
>          Components: core
>            Reporter: angela
>
> while we are having an extra test to prevent hidden property states
> from being exposed on the oak-api, we forgot to add the same check for
> child trees.
> while adding the test is pretty straight forward it would have an impact
> not only on #getChild(String) but also on
> - #getChildren
> - #getChildrenCount
> - #getOrderedChildNames
> - ...
> the simple check without addressing the other methods (already taking OAK-709 into account):
> {code}
> private boolean canRead(TreeImpl tree) {
>         return tree.getNodeState().exists() && !NodeStateUtils.isHidden(tree.getName());
>     }
> {code}
> adding this test will cause the following tests to fail
> - o.a.j.test.nodetype.NodeTypeTest#testGetPrimaryItemName which traverses the
>   repository instead of using a configured node type to setup an appropriate test and fails with the short-cut for childcnt being 1 in NodeDelegate
> - TypeEditorTest#ignoreHidden which tries to create hidden nodes using
>   the oak api (see also OAK-695)

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