如何使用 Query.make() 单独选择特定列

Question

In guidewire, Query.make(EntityName).select() returns the entire column values, How should be the code if I need column specific result.

For eg, If I just need PolicyNumber , PublicID and ID alone from Policy table, How should I write the code?

Answer 1

can you please try the below code.

var temp=Query.make(entity.Claim).select( \\ row -> row.ClaimNumber)

Still not sure about it though.

Answer 2

var op = Query.make(PolicyPeriod).select({
    QuerySelectColumns.pathWithAlias("PolicyNumber", Paths.make(PolicyPeriod#PolicyNumber)),
    QuerySelectColumns.pathWithAlias("OfferNumber", Paths.make(PolicyPeriod#OfferNumber)),
    QuerySelectColumns.pathWithAlias("Id", Paths.make(PolicyPeriod#ID))
})

foreach(o in op){
  print(" Policy No : "+o.getColumn("PolicyNumber") +" | Offer No : "+o.getColumn("OfferNumber")+" | ID : "+o.getColumn("Id"))
}

Answer 3

I had the some question and I found the answer for this. It is already commented above and I agree with them, adding left out code.

var temp=Query.make(entity.Claim).select( \ row -> {return { row.ClaimNumber} as String[]})
for(row in temp){
print("Claim Number = " + row[0])
}

where \\ is lambda.

I have tested this and it is working fine.

Answer 4

You never mentioned that you wanted to optimize. Please try the below code.

var temp=Query.make(entity.Policy).compare("PolicyNumber" , Equals, "123456").select()

You can use other functions like Joins. Please let me know if it works or my understanding is right!

Answer 5

It's simple,

Uses GW.api.database.Query
Var d=Query.make(PolicyPeriod).select()
For ( a in d){
Print ( d.PolicyNumber +" = " + d.ID +" = " + `d.PublicID)`
}

Answer 6

There are many approach by which we can achieve this. The simplest way would be storing the result in a variable and then selecting from that. var temp=Query.make(entity.Policy).select() temp.each( \\ elt -> print(elt.PolicyNumber)

You can also use other filters like Compare,AtMostOneRow,FirstWhere