[ https://issues.apache.org/jira/browse/IGNITE-7483?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vyacheslav Koptilin resolved IGNITE-7483. ----------------------------------------- Resolution: Duplicate Fix Version/s: 2.5 > Queries: transformers are not executed when paging the result > ------------------------------------------------------------- > > Key: IGNITE-7483 > URL: https://issues.apache.org/jira/browse/IGNITE-7483 > Project: Ignite > Issue Type: Bug > Components: cache > Affects Versions: 2.3 > Reporter: Sascha Hofer > Assignee: Vyacheslav Koptilin > Priority: Major > Fix For: 2.5 > > > It seems that transformers are not executed during pagination which leads to > {{ClassCastExceptions}} because the result list also contains instances of > {{GridCacheQueryResponseEntry}}. > To reproduce open {{GridCacheQueryTransformerSelfTest.testGetKeys()}} and set > a page size of 1 so that > {code:java} > List<Integer> keys = cache.query(new ScanQuery<Integer, String>(), > transformer).getAll(); > {code} > becomes to > {code:java} > List<Integer> keys = cache.query(new ScanQuery<Integer, > String>().setPageSize(1), transformer).getAll(); > {code} > this leads to following stack trace: > {noformat} > java.lang.ClassCastException: > org.apache.ignite.internal.processors.cache.query.GridCacheQueryResponseEntry > cannot be cast to java.lang.Comparable > at java.util.ComparableTimSort.binarySort(ComparableTimSort.java:249) > at java.util.ComparableTimSort.sort(ComparableTimSort.java:207) > at java.util.Arrays.sort(Arrays.java:1312) > at java.util.Arrays.sort(Arrays.java:1506) > at java.util.ArrayList.sort(ArrayList.java:1454) > at java.util.Collections.sort(Collections.java:141) > at > org.apache.ignite.internal.processors.cache.query.GridCacheQueryTransformerSelfTest.testGetKeys(GridCacheQueryTransformerSelfTest.java:102) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:498) > at junit.framework.TestCase.runTest(TestCase.java:176) > at > org.apache.ignite.testframework.junits.GridAbstractTest.runTestInternal(GridAbstractTest.java:2001) > at > org.apache.ignite.testframework.junits.GridAbstractTest.access$000(GridAbstractTest.java:133) > at > org.apache.ignite.testframework.junits.GridAbstractTest$5.run(GridAbstractTest.java:1916) > at java.lang.Thread.run(Thread.java:745) > {noformat} -- This message was sent by Atlassian JIRA (v7.6.3#76005)