CODEWITHSUNDEEP
javaiterationdocumentbson
Maaz Soan
Maaz Soan

Reputation: 123

how to iterate in a bson document in java

I am trying to iterate through a bson document in java but I get an error

new Document().append("test",1).forEach(record -> {
        System.out.println(record);           ^ error here
});

I get:

Error:(556, 49) java: incompatible types: incompatible parameter types in lambda expression, expected parameter 2 but found 1

when I try to add another parameter everything broke

new Document().append("test",1).forEach(record, param2 -> {

Upvotes: 5

Views: 3679

Answers (1)

Ousmane D.
Ousmane D.

Reputation: 56423

Due to the fact that Document implements the Map interface, that means it also inherits the default forEach method which takes a BiConsumer as a parameter. Thus your lambda should be like this:

.forEach((key, value) -> { ... }

Upvotes: 3

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