Hi Haoming,
For your spark-submit question: can you try using an assembly jar
("sbt/sbt assembly" will build it for you)? Another thing to check is
if there is any package structure that contains your SimpleApp; if so
you should include the hierarchal name.
Zongheng
On Thu, Jul 10, 2014 at 11:33 AM, Haoming Zhang
<haoming.zh...@outlook.com> wrote:
> Hi Yadid,
>
> I have the same problem with you so I implemented the product interface as
> well, even the codes are similar with your codes. But now I face another
> problem that is I don't know how to run the codes...My whole program is like
> this:
>
> object SimpleApp {
>
> class Record(val x1: String, val x2: String, val x3: String, ... val x24:
> String) extends Product with Serializable {
> def canEqual(that: Any) = that.isInstanceOf[Record]
>
> def productArity = 24
>
>
> def productElement(n: Int) = n match {
> case 0 => x1
> case 1 => x2
> case 2 => x3
> ...
> case 23 => x24
> }
> }
>
> def main(args: Array[String]) {
>
> val conf = new SparkConf().setAppName("Product Test")
> val sc = new SparkContext(conf)
> val sqlContext = new SQLContext(sc);
>
> val record = new Record("a", "b", "c", "d", "e", "f", "g", "h", "i",
> "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x")
>
> import sqlContext._
> sc.parallelize(record :: Nil).registerAsTable("records")
>
> sql("SELECT x1 FROM records").collect()
> }
> }
>
> I tried to run the above program with spark-submit:
> ./spark-submit --class "SimpleApp" --master local
> /playground/ProductInterface/target/scala-2.10/classes/product-interface-test_2.10-1.0.jar
>
> But I always get the exception that is "Exception in thread "main"
> java.lang.ClassNotFoundException: SimpleApp".
>
> So can you please share me the way to run the test program? Actually I can
> see there is a SimpleApp.class in classes folder, but I don't understand why
> spark-submit cannot find it.
>
> Best,
> Haoming
>
>> Date: Thu, 10 Jul 2014 09:02:18 -0700
>> From: ya...@media.mit.edu
>> To: u...@spark.incubator.apache.org
>> Subject: SPARKSQL problem with implementing Scala's Product interface
>
>>
>> Hi All,
>>
>> I have a class with too many variables to be implemented as a case class,
>> therefor I am using regular class that implements Scala's product
>> interface.
>> Like so:
>>
>> class Info () extends Product with Serializable {
>> var param1 : String = ""
>> var param2 : String = ""
>> ...
>> var param38: String = ""
>>
>> def canEqual(that: Any) = that.isInstanceOf[Info]
>> def productArity = 38
>> def productElement(n: Int) = n match {
>> case 0 => param1
>> case 1 => param2
>> ...
>> case 37 => param38
>> }
>> }
>>
>> after registering the table as info when I execute "SELECT * from info" I
>> get the expected result.
>> However, when I execute "SELECT param1, param2 from info" I get the
>> following exception:
>> Loss was due to
>> org.apache.spark.sql.catalyst.errors.package$TreeNodeException: No
>> function
>> to evaluate expression. type: UnresolvedAttribute, tree: 'param1
>>
>> I guess I must be missing a method in the implementation. Any pointers
>> appreciated.
>>
>> Yadid
>>
>>
>>
>>
>>
>>
>>
>>
>> --
>> View this message in context:
>> http://apache-spark-user-list.1001560.n3.nabble.com/SPARKSQL-problem-with-implementing-Scala-s-Product-interface-tp9311.html
>> Sent from the Apache Spark User List mailing list archive at Nabble.com.
