import ballerina/io;
type Employee record {
readonly record {
string first;
string last;
} name;
int salary;
};
public function main() {
// key field, `name` is of `record` type.
table<Employee> key(name) t = table [
{name: {first: "John", last: "Smith"}, salary: 100},
{name: {first: "Fred", last: "Bloggs"}, salary: 200}
];
Employee? e = t[{first: "Fred", last: "Bloggs"}];
io:println(e);
}
Structured KeysKey fields can be structured where they belong to any subtype of plain data. The Value of key field
must be immutable. Initializer of |
import ballerina/io;
type Employee record {
readonly record {
string first;
string last;
} name;
int salary;
};
public function main() {
table<Employee> key(name) t = table [
{name: {first: "John", last: "Smith"}, salary: 100},
{name: {first: "Fred", last: "Bloggs"}, salary: 200}
];
key field, name is of record type.
Employee? e = t[{first: "Fred", last: "Bloggs"}];
io:println(e);
}
bal run structured_keys.bal
{"name":{"first":"Fred","last":"Bloggs"},"salary":200}
