Written by

Ali Chaib

Question Ali Chaib · Feb 28, 2020

Create a list of messages in studio

#Caché #Studio

Do you have any clue how to create a list of messages in studio ?

Example :

I can define one message that is called DoctorInfoMsg such as

set DoctorInfoMsg= ##class(PKGNotification.InDoctorInfo).%New()

Where PKGNotification.InDoctorInfo is composed of

Property UserName As %String;

Property ListOfPatients As list Of %String;

How to define a list of PKGNotification.InDoctorInfo messages ?

How to get UserName of the first message?

Discussion (6)1

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Eduard Lebedyuk · Feb 28, 2020

Working with collection properties documentation.

If you want to hold a list of objects at runtume, use %ListOfObjects.

If you want to store a list of objects use collection properties (as you use ListOfPatient).

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Ali Chaib Feb 28, 2020 to Eduard Lebedyuk

Thank you Eduard.

To clarify, I don't have a problem with defining the properties in a message.

My question is how to define a list of messages. What's the syntax ?

Unfortunately, I couldn't find my answer in this documentation.

I want something similar to

set mylist=##class(%ListOfDataTypes).%New()

But instead of ListOfDataTypes I want List of DoctorInfoMsg

Thanks again :)

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Eduard Lebedyuk Feb 28, 2020 to Ali Chaib

Property DoctorInfos As list Of PKGNotification.InDoctorInfo;

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Ali Chaib Mar 2, 2020 to Eduard Lebedyuk

Thank you so much

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Peter Steiwer · Feb 28, 2020

Hi Ali,

Here is a sample of using %ListOfObjects:

SAMPLES>set list=##class(%ListOfObjects).%New()

SAMPLES>set t1=##class(HoleFoods.Transaction).%OpenId(1)

SAMPLES>d list.Insert(t1)

SAMPLES>w list.Count()
1
SAMPLES>set t2=##class(HoleFoods.Transaction).%OpenId(2)

SAMPLES>d list.Insert(t2)

SAMPLES>w list.Count()
2
SAMPLES>w list.GetAt(1)
2@HoleFoods.Transaction
SAMPLES>w list.GetAt(1).%Id()
1
SAMPLES>w list.GetAt(2).%Id()
2
SAMPLES>w list.GetAt(2).AmountOfSale
6.95

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Ali Chaib Mar 2, 2020 to Peter Steiwer

Thank you so much.

Creating a list of objects instead of list of a specific type of messages is a good option

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