Re: Ignite cache range query using cache keys

[diopek]

Hi Denis,
we have ignite cache that has key value pair as the following;
IgniteCache<Long, ArrayList&lt;MyPOJO>>
and cache cofiguration for this cache is as the following;
CacheConfiguration<Long, ArrayList&lt;MyPOJO>> cacheCfg = new
CacheConfiguration<>(cacheName);
                cacheCfg.setStartSize(startSize);
                cacheCfg.setCacheMode(CacheMode.LOCAL);

I wrote query as the following;
String sql = "_key >= ? && _key < ? ";
IgniteCache<Long, ArrayList&lt;MyPOJO>> igniteCache =
Ignition.ignite().cache(this.getCacheName());
SqlQuery<Long, ArrayList&lt;MyPOJO>> sqlQuery = new SqlQuery<Long,
ArrayList&lt;MyPOJO>>("ArrayList<MyPOJO>.class", sql);
sqlQuery.setArgs(min, max);
igniteCache.query(sqlQuery).getAll();

above method call returns the following exception;
Caused by: javax.cache.CacheException: Indexing is disabled for cache:
MY_CACHE. Use setIndexedTypes or setTypeMetadata methods on
CacheConfiguration to enable.
        at
org.apache.ignite.internal.processors.cache.IgniteCacheProxy.validate(IgniteCacheProxy.java:852)

I think I need to add indexing by calling
cacheConfig.setIndexedTypes(Long.class, Value.class)
But my value class is ArrayList<MyPOJO> not sure how to specify *.class file
for this generic collection type. Can you please advise. Thanks,



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