Re: Indexing/Querying of child element fields.

[kromulan]

Artem thanks for taking time first.  The entities in my case cannot be
annotated or changed so i am configuring them through XML (spring config),
as they're pregenerated from XSD schemas. But I've partially solved the
problem now i got a different issue, I've altered your example to:

==============

public static class ProductSpecification implements Serializable
 {
  private static final long serialVersionUID = 0;

  @QuerySqlField
  private String id;

  @QuerySqlField
  private CatalogValue characteristic;

  public ProductSpecification (String id, CatalogValue characteristic)
  {
   this.id = id;
   this.characteristic = characteristic;
  }
 }

 public static class CatalogValue implements Serializable
 {
  private static final long serialVersionUID = 0;

  @QuerySqlField (index = true)
  private int id;

  private String name;

  public CatalogValue (int id, String name)
  {
   this.id = id;
   this.name = name;
  }
 }

 @Test
 public void test2 ()
 {
  IgniteConfiguration cfg = new IgniteConfiguration ();

  System.getProperties ().put ("IGNITE_H2_DEBUG_CONSOLE", "true");
  try (Ignite ignite = Ignition.start (cfg))
  {
   CacheConfiguration<Integer, ProductSpecification> cc = new
CacheConfiguration<> ("productSpecifications");

   cc.setIndexedTypes (Integer.class, ProductSpecification.class);

   IgniteCache<Integer, ProductSpecification> c = ignite.getOrCreateCache
(cc);

   CatalogValue v1 = new CatalogValue (13, "Catalog 13");
   CatalogValue v2 = new CatalogValue (-317, "Catalog -317");

   c.put (1, new ProductSpecification ("spec1", v1));
   c.put (2, new ProductSpecification ("spec2", v2));
   c.put (3, new ProductSpecification ("spec3", v1));

   QueryCursor<List&lt;?>> q = c.query (new SqlFieldsQuery ("select id from
ProductSpecification ps where catalogId > 10"));

   for (List<?> objects : q)
    System.out.println (objects);
  }
 }


==============

As you can see the CatalogValue now has "id" named field. as does parent
class. Now the problem is with indexes names / field names as they are
duplicate.

Error:
class org.apache.ignite.IgniteCheckedException: Property with name 'id'
already exists.





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