IN clause with Spring Data and Cassandra @Query

Question

I\'m trying to query a Cassandra table using the IN clause and the @Query annotation from Spring Data. I have a table with a partition key of last_name and a clustering key

Answer 1

It seems to be not possible!

I checked the source code of spring-data-cassandra-1.3.2.RELEASE.jar.

The allowed data types of parameter in the query method are String.class, CharSequence.class, char.class, Character.class, char[].class, long.class, Long.class, boolean.class, Boolean.class, BigDecimal.class, BigInteger.class, double.class, Double.class, float.class, Float.class, InetAddress.class, Date.class, UUID.class, int.class are Integer.class.

They can be found in

org.springframework.data.cassandra.repository.query.CassandraQueryMethod.ALLOWED_PARAMETER_TYPES = Collections.unmodifiableList(Arrays
            .asList(new Class<?>[] { String.class, CharSequence.class, char.class, Character.class, char[].class, long.class,
                    Long.class, boolean.class, Boolean.class, BigDecimal.class, BigInteger.class, double.class, Double.class,
                    float.class, Float.class, InetAddress.class, Date.class, UUID.class, int.class, Integer.class }));

If we pass data types other than these, then org.springframework.data.cassandra.repository.query.CassandraQueryMethod.verify(Method method, RepositoryMetadata metadata) will throw IllegalArgumentException.

Answer 2

Nitish Bhagat is right, with the current version spring-data-cassandra:2.0.6.RELEASE it does NOT work with the braces.

For me, it works ONLY without the braces like: @Query("SELECT * FROM people WHERE first_name IN ?0") public List<People> findByFirstName(List<String> firstName);

Answer 3

Update

With current spring, it seems to be working without braces.

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Old answer

You have to use bracers when you are using IN.

@Query("SELECT * FROM people WHERE last_name=?0 AND first_name IN (?1)")
public List<People> findByLastName(String lastName, String[] firstName);

But there are some other issues in your code. I changed them all to a good coding standards as below. Including my personal favorite of using named parameters.

@Query("SELECT p FROM People p WHERE p.lastName = :lastName AND p.firstName IN (:firstNames)")
public List<People> findByName(@Param("lastName") String lastName, @Param("firstNames") String[] firstNames);