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The list of children returned in EContentsEList from two list features The #get(int) method is implemented via iterators which is a performance killer. Those are two lists we are accessing. It would be a good idea to come up with a custom read-only EList implementation to access to joint lists. The GMF-runtime currently copies the whole list to access list entries by index.
We should also consider returning a write accessible list in ViewImpl#getVisibleChildren() to avoid cloning this list in the editpart code.
[GMF Restructure] Bug 319140 : product GMF and component Runtime Diagram was the original product and component for this bug
ViewImpl is in GMF-Notation.
Eclipse GMF Notation is moving away from this bugs.eclipse.org issue tracker to https://github.com/eclipse/gmf-notation. If this issue is relevant to you and still present in the latest release: * Create a new issue at https://github.com/eclipse/gmf-notation/issues/. * Use as title in GitHub the title of this Bugzilla ticket (may include the bug number or not, at your own convenience) * In the GitHub description, start with a link to this bugzilla ticket * Optionally add new content to the description if it can helps towards resolution * Update bugzilla ticket * Add to "See also" property (up right column) the link to the newly created GitHub issue * Add a comment "Migrated to <link-to-newly-created-GitHub-issue>" * Set status as CLOSED MOVED All issues that remain open will be automatically closed in the next few weeks. Then the Bugzilla component for GMF Notation will be archived and made read-only.
Closing as part of the move to GitHub. Feel free to re-open an equivalent issue at https://github.com/eclipse/gmf-notation/issues if you feel this is still relevant.