How to add a list property to an entity using gcloud Java client?

Question

I can set a property to a new entity:

Entity.Builder builder = Entity.builder(actKey);
builder.set("name", someName);

I can see a method to add a list as a property:

List<Value<String>> aliases = new ArrayList<>();
builder.set("aliases", aliases);

I cannot find, however, how to create this Value<String>. There is a DatastoreHelper.makeValue() method in DatastoreV1, but it creates a different Value object.

@Entity worked for me on the CustomClass – Saurav Sahu Aug 16 '22 at 09:19 — Saurav Sahu, Aug 16 '22 at 09:19

score 2 · Accepted Answer · answered Apr 02 '16 at 03:54

2

Looking at the source code for gcloud, the answer is this:

Builder aliases = ListValue.builder();
while (someIterator.hasNext()) {
    aliases.addValue(StringValue.builder("some string").build());
}
builder.set("aliases", aliases.build());

answered Apr 02 '16 at 03:54

Andrei Volgin

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1

Correct. other options are: Using ListValue.of(....), and using the various EntityBulder.set method that accept list. – ozarov Apr 09 '16 at 19:42

How to add a list property to an entity using gcloud Java client?

1 Answers1