private void initContent() {
        if (didInitContent) {
            return;
        }
        didInitContent = true;
        if (value.type() == Type.EMPTY) {
            content = "";
        } else if (value.type() == Type.STRING) {
            content = value.asString();
        } else {
            // This will be json, because we know there is Slime below
            content = value.toString();
        }
    }
A JSON wrapper. Contains XML-style rendering of a JSON structure.

@author Steinar Knutsen
container-search/src/main/java/com/yahoo/prelude/hitfield/JSONString.java