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T result from repository finder should throw exception when there is not a single unique result [DATAGRAPH-948] #1509

spring-projects-issues opened this issue Jan 12, 2017 · 1 comment
in: core


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spring-projects-issues commented Jan 12, 2017

Mark Angrish opened DATAGRAPH-948 and commented

SDN should follow Spring Data conventions where it can.

??"T | An unique entity. Expects the query method to return one result at most. In case no result is found null is returned. More than one result will trigger an IncorrectResultSizeDataAccessException."??


Test case:

    @Test(expected = IncorrectResultSizeDataAccessException.class)
    public void findByNameSingleResult() throws Exception {
        World world1 = new World("world 1", 1);, 0);

        World world2 = new World("world 1", 2);, 0);

        World world = worldRepository.findByName("world 1"); // there are 2 results, 1 is returned instead of IncorrectResultSizeDataAccessException thrown

Affects: 4.2 RC1 (Ingalls), 5.0 M1 (Kay)

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spring-projects-issues commented Oct 4, 2017

Gerrit Meier commented

Due to refactoring driven by DATAGRAPH-975 this was already resolved.
Added regression test for completeness

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