LEE PYUNG BEOM created IGNITE-12468:
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Summary: ClassCastException on thinClient in Apache Ignite
Key: IGNITE-12468
URL:
https://issues.apache.org/jira/browse/IGNITE-12468 Project: Ignite
Issue Type: Bug
Components: clients
Affects Versions: 2.6
Reporter: LEE PYUNG BEOM
{code:java}
ClientConfiguration cfg = new ClientConfiguration().setAddresses("127.0.0.1:10800");
try (IgniteClient igniteClient = Ignition.startClient(cfg)) {
System.out.println(">>> Thin client put-get example started.");
final String CACHE_NAME = "put-get-example";
ClientCache<Integer, Object> cache = igniteClient.getOrCreateCache(CACHE_NAME);
Person p = new Person();
//put
HashMap<Integer, Person> hm = new HashMap<Integer, Person>();
hm.put(1, p);
cache.put(1, hm);
//get
HashMap<Integer, Person> map = (HashMap<Integer, Person>)cache.get(1);
Person p2 = map.get(1);
System.out.format(">>> Loaded [%s] from the cache.\n",p2);
}
catch (ClientException e) {
System.err.println(e.getMessage());
e.printStackTrace();
}
catch (Exception e) {
System.err.format("Unexpected failure: %s\n", e);
e.printStackTrace();
}
{code}
I use the thin client of apache-ignite.
I Create a hashmap and put the Person class(org.apache.ignite.examples.model.Person) object into it.
And when I take it out of the hashmap, I get the following exceptions:
{code:java}
> java.lang.ClassCastException:
> org.apache.enite.internal.binary.BinaryObjectImpl cannot be cast to
> org.apache.engite.examples.model.Person.
{code}
An exception is given in the code below.
{code:java}
Person p2 = map.get(1);
{code}
However, there is no exception if I modify the code as follows:
{code:java}
BinaryObject bo = (BinaryObject) map.get(1);
Person p2 = bo.deserialize();
{code}
I don't think that's necessary. Is there another solution?
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