Time Series Last Node Link

[Thomas Kennedy]

I have a time series modelled in the graph way

year(linkmap)->month(linkmap)->day(linkmap)->hour(linkmap)

I have two other vertices which are events and users

I want to join events to the time series. Is this best achieved by using an edge or a linkset? 

year(linkmap)->month(linkmap)->day(linkmap)->hour(linkmap)-> ?Edge|Linkset? Event -> User

[Luigi Dell'Aquila]

Hi Thomas,

it depends on following factors:

- do you need bi-directional traversal? In case an edge is better

- do you plan to store information on the links? in case an edge is better; in case not, with linkset you will save some space and performance

- do you plan to delete events? In case you do, graph API will remove hanging edges for you

Luigi

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[Enrico Di Marco]

Hi there,

is there any sample code or gist that show how to create a function wich handle time serie with graph api triggered by vertex creation?

i think this is a common pattern

thank you

[Luigi Dell'Aquila]

Hi Enrico,

have you already checked this?

http://www.slideshare.net/LuigiDellAquila/orientdb-time-representation

Luigi