如何获取所有Jackson / JAXB带注释的属性值？

Question

Given an entity (model) class with Jackson annotations for setting column names:

public class GridRowModel {
    private Long maxRegulatedValue;

    @JsonProperty(value="Max Regulated Value")
    public Long getMaxRegulatedValue() {
        return maxRegulatedValue;
    }

    @JsonProperty(value="Fares")
    public Map<String, FareModel> getFares() {
        return fares;
    }
    ...

(Could alternatively have used JAXB annotations - eg @XmlElement(name="Max Regulated Value").

I need a getGridColumns method that will return a JSON structure with all the column names extracted from this model + its submodels (so here it would return "Max Regulated Value" and all @JsonProperty values from FareModel .)

The question is how best to approach this? Have mooted using reflection, eg something like method.getAnnotation(JsonProperty.class).value()) but not sure if this would even work and it doesn't seem ideal. For one thing, it wouldn't respect the order specified by @JsonPropertyOrder (or propOrder in JAXB). Am wondering if there is a smarter way (perhaps using some kind of Adapter?)

Answer 1

In the end, the column order turned out to be important so I annotated each model class with:

@JsonPropertyOrder({ "Max Regulated Value", "Another field", ... })

...and then wrote a method to loop through these (using reflection) + the submodel (which is actually fixed).