Difference between aggregation and association in ui5?

[Former Member]

Hello experts,

Can anyone of folks tell the difference between aggregation and association in ui5 with details ?

[ChandraMahajan · Accepted solution]

Hi,

as per UI5 documentation,

An aggregation is a special relation between two UI element types. It is used to define the parent/child relationship within the above mentioned tree structure. The parent end of the aggregation has cardinality 0..1, while the child end may have 0..1 or 0..*. The element's API - as generated by UI5 tools - offers convenient and consistent methods to deal with aggregations (e.g. to get, set, or remove target elements). Examples are table rows and cells, or the content of a table cell.

An association is another type of relation between two UI element types which is independent of the parent/child relationship within the above mentioned tree structure. Directed outgoing associations to a target of cardinality 0..1 are supported. They represent a loose coupling only and are thus implemented by storing the target element instance's ID. The most prominent example is the association between a label and its field.

tables rows and cells is the example of aggregation whereas label associated with input field is the example of association.

Hope this helps.

Regards,

Chandra

[Former Member · Accepted solution]

Hello Chandra,

          thanks.

[Former Member · Accepted solution]

Hello,

       can you tell me difference between addRow() and createRow() in matrixLayout?When to use each one of them?

Regards,

Ripu

[Former Member · Accepted solution]

and +1

how to set textcolor of textView except using addStyleClass() api?

[ChandraMahajan · Accepted solution]

Hi,

If your original question got answered then you can close it. for further questions, please create new discussion thread.

Regards,

Chandra