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Ero sivun ”Journeys API” versioiden välillä
Journeys API (näytä wikiteksti)
Versio 5. heinäkuuta 2014 kello 03.15
, 5. heinäkuuta 2014 kello 03.15→API Entities
| Rivi 14: | Rivi 14: | ||
[[File:Journeys_API_Entities.png|none]] | [[File:Journeys_API_Entities.png|none]] | ||
In the picture above, entities are drawn with purple color. Boxes with blue color are properties of the entities, but drawn out to explain the concepts. | In the picture above, entities are drawn with purple color. Boxes with blue color are properties of the entities, but drawn out to explain the concepts. Lines in the picture represent UML-styled relations. Lines with filled diamond represent relation with ownership rule: the entity which has a diamond shape attached to it, owns the entity or property at other end of the line. Lines with empty diamond represent relation reference rule: the entity which has an empty diamond shape attached to it, is referred by entity or property at other end of the line. For example ROUTE owns POINTS ON ROUTE, and JOURNEY references a STOP POINT. Numbers at the end of lines are multiplicity rules, which tell how many entities or properties are included in the relation. If number is not present at the end of a line, it is assumed that number one would exist at the end of that line. For example: Route and PointOnRoute share a relation. In this relation, a PointOnRoute relates to one Route, whereas a Route relates to two or more PointOnRoutes. | ||
===Routes and Points on Route=== | ===Routes and Points on Route=== | ||
ROUTE entity describes a path through (a road or a rail) network, which is used by a public transport service (such as bus or a tram). ROUTE consists of sequence of POINTS ON ROUTE, each having a location. The first POINT ON ROUTE is the starting point of the ROUTE and the last POINT ON ROUTE is the termination point of the ROUTE. Following picture is taken from Tampere "reittikartta" and outlines a ROUTE through Tampere. [[File:Journ_Line_2.png|400px|none]] | ROUTE entity describes a path through (a road or a rail) network, which is used by a public transport service (such as bus or a tram). ROUTE consists of sequence of POINTS ON ROUTE, each having a location. The first POINT ON ROUTE is the starting point of the ROUTE and the last POINT ON ROUTE is the termination point of the ROUTE. Following picture is taken from Tampere "reittikartta" and outlines a ROUTE through Tampere. [[File:Journ_Line_2.png|400px|none]] | ||