{"action":"created","issue":{"url":"https://api.github.com/repos/jgrapht/jgrapht/issues/500","repository_url":"https://api.github.com/repos/jgrapht/jgrapht","labels_url":"https://api.github.com/repos/jgrapht/jgrapht/issues/500/labels{/name}","comments_url":"https://api.github.com/repos/jgrapht/jgrapht/issues/500/comments","events_url":"https://api.github.com/repos/jgrapht/jgrapht/issues/500/events","html_url":"https://github.com/jgrapht/jgrapht/pull/500","id":300247420,"number":500,"title":"add class for supporting synchronized graph","user":{"login":"Yimismi","id":25903066,"avatar_url":"https://avatars1.githubusercontent.com/u/25903066?v=4","gravatar_id":"","url":"https://api.github.com/users/Yimismi","html_url":"https://github.com/Yimismi","followers_url":"https://api.github.com/users/Yimismi/followers","following_url":"https://api.github.com/users/Yimismi/following{/other_user}","gists_url":"https://api.github.com/users/Yimismi/gists{/gist_id}","starred_url":"https://api.github.com/users/Yimismi/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Yimismi/subscriptions","organizations_url":"https://api.github.com/users/Yimismi/orgs","repos_url":"https://api.github.com/users/Yimismi/repos","events_url":"https://api.github.com/users/Yimismi/events{/privacy}","received_events_url":"https://api.github.com/users/Yimismi/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":3,"created_at":"2018-02-26T13:55:49Z","updated_at":"2018-03-09T15:21:17Z","closed_at":null,"author_association":"NONE","pull_request":{"url":"https://api.github.com/repos/jgrapht/jgrapht/pulls/500","html_url":"https://github.com/jgrapht/jgrapht/pull/500","diff_url":"https://github.com/jgrapht/jgrapht/pull/500.diff","patch_url":"https://github.com/jgrapht/jgrapht/pull/500.patch"},"body":""},"comment":{"url":"https://api.github.com/repos/jgrapht/jgrapht/issues/comments/371842807","html_url":"https://github.com/jgrapht/jgrapht/pull/500#issuecomment-371842807","issue_url":"https://api.github.com/repos/jgrapht/jgrapht/issues/500","id":371842807,"user":{"login":"Yimismi","id":25903066,"avatar_url":"https://avatars1.githubusercontent.com/u/25903066?v=4","gravatar_id":"","url":"https://api.github.com/users/Yimismi","html_url":"https://github.com/Yimismi","followers_url":"https://api.github.com/users/Yimismi/followers","following_url":"https://api.github.com/users/Yimismi/following{/other_user}","gists_url":"https://api.github.com/users/Yimismi/gists{/gist_id}","starred_url":"https://api.github.com/users/Yimismi/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Yimismi/subscriptions","organizations_url":"https://api.github.com/users/Yimismi/orgs","repos_url":"https://api.github.com/users/Yimismi/repos","events_url":"https://api.github.com/users/Yimismi/events{/privacy}","received_events_url":"https://api.github.com/users/Yimismi/received_events","type":"User","site_admin":false},"created_at":"2018-03-09T15:21:17Z","updated_at":"2018-03-09T15:21:17Z","author_association":"NONE","body":"@jsichi To solve the problem that thread A expects some kind of snapshot-consistent view of the graph while thread B may change the graph. \r\nThe first idea is making the modification operation of B thread later than the read operation of A thread. One way to do this is using build-in synchronized. Another way is that we provide a method which makes the graph read-only to the user.\r\nThe second idea is making what A thread reads a copy of the graph. But to do this A thread need to get the copy previously."}}
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