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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-19751) Create Data frame API fails with a self referencing bean
Date Tue, 07 Mar 2017 08:45:33 GMT

    [ https://issues.apache.org/jira/browse/SPARK-19751?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15898967#comment-15898967
] 

Apache Spark commented on SPARK-19751:
--------------------------------------

User 'maropu' has created a pull request for this issue:
https://github.com/apache/spark/pull/17188

> Create Data frame API fails with a self referencing bean
> --------------------------------------------------------
>
>                 Key: SPARK-19751
>                 URL: https://issues.apache.org/jira/browse/SPARK-19751
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.1.0
>            Reporter: Avinash Venkateshaiah
>            Priority: Minor
>
> createDataset API throws a stack overflow exception when we try creating a 
> Dataset using a bean encoder. The bean is self referencing
> BEAN:
> public class HierObj implements Serializable {
>     String name;
>     List<HierObj> children;
>     public String getName() {
>         return name;
>     }
>     public void setName(String name) {
>         this.name = name;
>     }
>     public List<HierObj> getChildren() {
>         return children;
>     }
>     public void setChildren(List<HierObj> children) {
>         this.children = children;
>     }
> }
> // create an object
>         HierObj hierObj = new HierObj();
>         hierObj.setName("parent");
>         List children = new ArrayList();
>         HierObj child1 = new HierObj();
>         child1.setName("child1");
>         HierObj child2 = new HierObj();
>         child2.setName("child2");
>         children.add(child1);
>         children.add(child2);
>         hierObj.setChildren(children);
> // create a dataset
>         Dataset ds = sparkSession().createDataset(Arrays.asList(hierObj), Encoders.bean(HierObj.class));



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