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From "Heath Thomann (JIRA)" <j...@apache.org>
Subject [jira] Created: (OPENJPA-1957) XML overriding column names for ArrayList attributes causes exception.
Date Wed, 09 Mar 2011 00:11:59 GMT
XML overriding column names for ArrayList attributes causes exception.
----------------------------------------------------------------------

                 Key: OPENJPA-1957
                 URL: https://issues.apache.org/jira/browse/OPENJPA-1957
             Project: OpenJPA
          Issue Type: Bug
          Components: jdbc
    Affects Versions: 2.1.0, 2.0.1, 1.2.2
            Reporter: Heath Thomann
            Assignee: Heath Thomann
            Priority: Minor


Take an entity class similar to the following:

public class MyEntity implements Serializable {
   protected String _id;
   protected ArrayList<String> myStrings = new ArrayList<String>();
.......

and a corresponding XML mapping in orm.xml:

  	<entity class="somepackage.MyEntity" access="FIELD">
		<table name="MY_TABLE"/>
		<attributes>
			<id name="_id">
				<column name="MYENTITY_ID" nullable="false" />
			</id>
          <basic name="myStrings">
            <column name="MY_STRINGS"/>
            <lob/>
         </basic>
		</attributes>
	</entity>


With this configuration, the following exception can occur:

org.apache.openjpa.persistence.ArgumentException: You have supplied columns for "somepackage.MyEntity.myStrings<element:class
java.lang.String>", but this mapping cannot have columns in this context.
	at org.apache.openjpa.jdbc.meta.MappingInfo.assertNoSchemaComponents(MappingInfo.java:327)
	at org.apache.openjpa.jdbc.meta.strats.HandlerFieldStrategy.map(HandlerFieldStrategy.java:77)
	at org.apache.openjpa.jdbc.meta.FieldMapping.setStrategy(FieldMapping.java:121)
	at org.apache.openjpa.jdbc.meta.RuntimeStrategyInstaller.installStrategy(RuntimeStrategyInstaller.java:80)
	at org.apache.openjpa.jdbc.meta.FieldMapping.resolveMapping(FieldMapping.java:454)
	at org.apache.openjpa.jdbc.meta.FieldMapping.resolve(FieldMapping.java:419)
	at org.apache.openjpa.jdbc.meta.ClassMapping.resolveNonRelationMappings(ClassMapping.java:881)
	at org.apache.openjpa.jdbc.meta.MappingRepository.prepareMapping(MappingRepository.java:418)
..............


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