Number constraints in JSON Schema Validation

Question

I am working of JSON Schema Validation. I wanted to know if it is possible to impose number constraints, and if it is possible, how.

For example:

{
    "$schema": "http://json-schema.org/simpleSchema",
    "properties": {
        "birthYear": {
            "type":"number"
        },
        "deathYear": {
            "type":"number"
        },
        "name": {
            "type":"string"
        }
    }
}

I want to do something like this:

birthYear <= deathYear

How can I do this? Is there a specific keyword for constraints like these?

Thank you very much.

João

Answer 1

JSON Schema does not support constraints that refer to other properties.

See 5.1. Validation keywords for numeric instances (number and integer) for what is possible.