Re: [JDBC] Cannot insert to 'path' field using EclipseLink

java.lang.ClassCastException: org.postgresql.geometric.PGpath cannot be cast to org.postgresql.geometric.PGpath

On Wed, Mar 12, 2014 at 7:37 AM, Daryl Foster <daryl.foster@oncenter.com> wrote:

I have a java app running in JBoss that uses EclipseLink to persist to a Postgres database. I've added a field with a 'path' datatype to one of the tables but I keep getting the following exception when I try to insert data:

org.postgresql.util.PSQLException: Can't infer the SQL type to use for an instance of org.postgresql.geometric.PGpath. Use setObject() with an explicit Types value to specify the type to use.

Here's the table definition:

    CREATE TABLE schema.table_name

    (

        item_id    uuid NOT NULL,

        item_path  path NOT NULL

    )

The java entity is representing the item_path field as a List<Point> object, and I'm using a converter to map from the List<Point> object to a PGpath object:

    import org.eclipse.persistence.mappings.DatabaseMapping;

    import org.eclipse.persistence.mappings.converters.Converter;

    import org.eclipse.persistence.sessions.Session;

    import org.postgresql.geometric.PGpath;

    import java.awt.Point;

    import java.util.ArrayList;

    import java.util.List;

    import static java.sql.Types.OTHER;

    public class PgPathConverter implements Converter

    {

        @Override

        public boolean isMutable ()

        {

            return false;

        }

        @Override

        public List<Point> convertDataValueToObjectValue (Object value, Session session)

        {

            // Code that converts PGpath to List<Point>

        }

        @Override

        public PGpath convertObjectValueToDataValue (Object value, Session session)

        {

            // Code that converts List<Point> to PGpath

        }

        @Override

        public void initialize (DatabaseMapping mapping, Session session)

        {

            mapping.getField ().setSqlType (OTHER);

        }

    }

The entity class is defined as follows:

    @Entity

    @Table (

        name           = "table_name",

        schema         = "schema"

    )

    @Converter (

        name           = "path",

        converterClass = PgPathConverter.class

    )

    public class TableName

    {

        public TableName () {}

        private static final long serialVersionUID = 1L;

        @Column (name = "item_path")

        @Convert ("path")

        private List<Point> m_ItemPath;

        @Id

        @Column (

            name     = "item_id",

            unique   = true,

            nullable = false

        )

        private UUID        m_ItemId;

        public UUID getItemId ()

        {

            return m_ItemId;

        }

        public List<Point> getItemPath ()

        {

            return m_InkPath;

        }

        public void setItemId (UUID itemId)

        {

            m_ItemId = itemId;

        }

        public void setInkPath (List<Point> itemPath)

        {

             m_ItemPath = itemPath;

        }

    }

Finally, here's the exception I get when I call `EntityManager.persist (entity)`:

    18:10:33,789 ERROR [org.jboss.as.ejb3] (http-/0.0.0.0:8080-1) javax.ejb.EJBTransactionRolledbackException: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.5.0.v20130507-3faac2b): org.eclipse.persistence.exceptions.DatabaseException

    Internal Exception: org.postgresql.util.PSQLException: Can't infer the SQL type to use for an instance of org.postgresql.geometric.PGpath. Use setObject() with an explicit Types value to specify the type to use.

    Error Code: 0

    Call: INSERT INTO schema.table_name (item_id, item_path) VALUES (?, ?)

bind => [2 parameters bound]

    18:10:33,789 ERROR [org.jboss.as.ejb3.invocation] (http-/0.0.0.0:8080-1) JBAS014134: EJB Invocation failed on component TableNameRepository for method public void com.mycompany.myproject.data.Repository.flush() throws javax.persistence.TransactionRequiredException,javax.persistence.PersistenceException: javax.ejb.EJBTransactionRolledbackException: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.5.0.v20130507-3faac2b): org.eclipse.persistence.exceptions.DatabaseException

    Internal Exception: org.postgresql.util.PSQLException: Can't infer the SQL type to use for an instance of org.postgresql.geometric.PGpath. Use setObject() with an explicit Types value to specify the type to use.

    Error Code: 0

    Call: INSERT INTO schema.table_name (item_id, item_path VALUES (?, ?)

bind => [2 parameters bound]

        at org.jboss.as.ejb3.tx.CMTTxInterceptor.handleInCallerTx(CMTTxInterceptor.java:138) [jboss-as-ejb3-7.2.0.Final-redhat-8.jar:7.2.0.Final-redhat-8]

        at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInCallerTx(CMTTxInterceptor.java:228) [jboss-as-ejb3-7.2.0.Final-redhat-8.jar:7.2.0.Final-redhat-8]

at org.jboss.as.ejb3.tx.CMTTxInterceptor.required(CMTTxInterceptor.java:317) [jboss-as-ejb3-7.2.0.Final-redhat-8.jar:7.2.0.Final-redhat-8]

at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:214) [jboss-as-ejb3-7.2.0.Final-redhat-8.jar:7.2.0.Final-redhat-8]

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final-redhat-2.jar:1.1.1.Final-redhat-2]

at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) [jboss-as-ejb3-7.2.0.Final-redhat-8.jar:7.2.0.Final-redhat-8]

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final-redhat-2.jar:1.1.1.Final-redhat-2]

at org.jboss.as.ejb3.component.interceptors.ShutDownInterceptorFactory$1.processInvocation(ShutDownInterceptorFactory.java:64) [jboss-as-ejb3-7.2.0.Final-redhat-8.jar:7.2.0.Final-redhat-8]

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final-redhat-2.jar:1.1.1.Final-redhat-2]

at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:59) [jboss-as-ejb3-7.2.0.Final-redhat-8.jar:7.2.0.Final-redhat-8]

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final-redhat-2.jar:1.1.1.Final-redhat-2]

at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50) [jboss-as-ee-7.2.0.Final-redhat-8.jar:7.2.0.Final-redhat-8]

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final-redhat-2.jar:1.1.1.Final-redhat-2]

at org.jboss.as.ejb3.component.interceptors.AdditionalSetupInterceptor.processInvocation(AdditionalSetupInterceptor.java:55) [jboss-as-ejb3-7.2.0.Final-redhat-8.jar:7.2.0.Final-redhat-8]

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final-redhat-2.jar:1.1.1.Final-redhat-2]

at org.jboss.as.ee.component.TCCLInterceptor.processInvocation(TCCLInterceptor.java:45) [jboss-as-ee-7.2.0.Final-redhat-8.jar:7.2.0.Final-redhat-8]

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final-redhat-2.jar:1.1.1.Final-redhat-2]

at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.1.Final-redhat-2.jar:1.1.1.Final-redhat-2]

at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:165) [jboss-as-ee-7.2.0.Final-redhat-8.jar:7.2.0.Final-redhat-8]

at org.jboss.as.ee.component.ViewDescription$1.processInvocation(ViewDescription.java:182) [jboss-as-ee-7.2.0.Final-redhat-8.jar:7.2.0.Final-redhat-8]

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final-redhat-2.jar:1.1.1.Final-redhat-2]

at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.1.Final-redhat-2.jar:1.1.1.Final-redhat-2]

at org.jboss.as.ee.component.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:72) [jboss-as-ee-7.2.0.Final-redhat-8.jar:7.2.0.Final-redhat-8]

...

--

Sincerely,

Daryl Foster

--

Sincerely,

Daryl Foster
Software Engineer

On Center Software, Inc.

P: 281.210.0177F: 281.297.9001
W: www.oncenter.com