java - Cast from Object to List<String>: CastClassException -


i'm using touchdb ektorp in android app access couchdb

the json document i'm accessing has array of categories:

categories: ['cat1', 'cat2']

in view query i'm trying access array classcastexception when trying convert result object list:

 public void map(map<string, object> document, tdviewmapemitblock emitter) {            object dateadded = document.get("dateadded");            object expirydate = document.get("expirydate");            boolean expired = false;              if(expirydate!=null){                  expired = comparedate.isitemexpired(expirydate);              }            list<string> test = (list<string>)document.get("categories");

the .get() method works fine single json fields. ideas?

document declared map<string, object>

so when .get() - return object.

there's no direct mapping (list<string>) exception saying need cast object rather list.

you change map hold list of strings in values, stop class cast exception should review why map declared in way is.


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