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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2020/12/08 08:05:42 UTC

[GitHub] [shardingsphere] huanqwer opened a new issue #8529: Sharding value must implements Comparable.

huanqwer opened a new issue #8529:
URL: https://github.com/apache/shardingsphere/issues/8529


   ## Bug Report
   
   Under JPA use repository to save entity to DB
   I defined my own ComplexKeysShardingAlgorithm use two columns (dealer_id & company_code) to shard table
   But these two columns could not be null, when one of them is null
   Then got java.lang.IllegalArgumentException: Sharding value must implements Comparable.
   
   ### Which version of ShardingSphere did you use?
   
   implementation 'org.apache.shardingsphere:sharding-jdbc-core:4.1.1'
   
   ### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
   
   ShardingSphere-JDBC
   
   ### Expected behavior
   
   JPA repo save successfully
   
   ### Actual behavior
   
   got java.lang.IllegalArgumentException: Sharding value must implements Comparable.
   
   ### Reason analyze (If you can)
   
   In org.apache.shardingsphere.sharding.route.engine.condition.engine.InsertClauseShardingConditionEngine#getRouteValue
   ```java
   Preconditions.checkArgument(result instanceof Comparable, "Sharding value must implements Comparable.");
   ```
   this code will check sharding value is instanceof Comparable and throw above Exception
   
   ### Steps to reproduce the behavior, such as: SQL to execute, sharding rule configuration, when exception occur etc.
   
   as above
   
   ### Example codes for reproduce this issue (such as a github link).
   
   as above
   


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[GitHub] [shardingsphere] huanqwer commented on issue #8529: Sharding value must implements Comparable.

Posted by GitBox <gi...@apache.org>.
huanqwer commented on issue #8529:
URL: https://github.com/apache/shardingsphere/issues/8529#issuecomment-741505410


   finally I use @Convert annotation in jpa to convert null to "",


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[GitHub] [shardingsphere] huanqwer closed issue #8529: Sharding value must implements Comparable.

Posted by GitBox <gi...@apache.org>.
huanqwer closed issue #8529:
URL: https://github.com/apache/shardingsphere/issues/8529


   


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[GitHub] [shardingsphere] huanqwer commented on issue #8529: Sharding value must implements Comparable.

Posted by GitBox <gi...@apache.org>.
huanqwer commented on issue #8529:
URL: https://github.com/apache/shardingsphere/issues/8529#issuecomment-740457216


   I guess if save operation throws this Exception, other DDL operations may have the same problem


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[GitHub] [shardingsphere] huanqwer commented on issue #8529: Sharding value must implements Comparable.

Posted by GitBox <gi...@apache.org>.
huanqwer commented on issue #8529:
URL: https://github.com/apache/shardingsphere/issues/8529#issuecomment-740455688


   I wonder if there is a simple way to save entity successfully when sharding value is null


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