Views always appear as different when engineering from Logical to Relational

I created some views in my logical model. After I engineer them to relational model, they appear in relational with an exclamation mark near the upper left corner. If I try to generate ddl for them, I get an error (-- ERROR: Invalid View VwTest). I realized that I have to "validate selected views", in order for the eclamation mark to disappear, and then I am able to generate ddl for them. After that, when I engineer from logical to relational again, it always shows me that my views are different. The difference is that in logical, my entities are shown between double quotes ("), while in relational, after the validation, the tables are not between double quotes. Is there a way to overcome this?
Thanks

Hi,
Thanks for reporting this problem. It appears that this is happening when the Entity name contains lower-case letters.
David

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FWDEngineering.execute() nullpointerException when engineering from logical to physical model

Dear Community,
During the "engineer to relational model" from the logical model I got a long time the correct behaviour.
Now I get the following error in the log file: "ERROR FWDEngineering - FWDEngineering.execute()" NullpointerException
The model is not that large but contains a number of entities with sub-entities for which I set the way of implementation to generate a single table.
Test 1: Restart
Removing the model has not solved the problem for this ... (delete entire relational model)
Test 2: reset subtype implementation to default behaviour
So on the level of the super entity the following settings are set on the subtype property page:
- subtree do not preset
- No Discriminator column
- no 'use attribute' selected
- no column name set,
The model generates the foreign keys ... and gives no error.
Test 3 : setting discriminator.
Juglin' around with the properties I noticed that when after starting from test 2 and setting the property "generate discrimator" *and* selecting the name of the discriminator colomn the error can be reproduced. Currently I do not know fit the setting subtree together with discriminator column is logically correct ... but I get the stacktrace ;-)
Test 4 : can the subtree generation mode solve it -> Seems I'm not able to set it to an other value than "do not preset" anymore.
Version datamodeler is 4.0.0.833
Test 5 : Created a smaller model ... and tested if the foreign key generation in itself caused the problem. Removing the relationship with a subentity does not cause the problem to not occur ...
At this moment in time ... it seems to me I cannot set the mode to generate the master entity and its subs to one table anymore.
What am I doing wrong?
... and anyway ... there is a stacktrace ;-)
Has anyone some solution/experience with this?
For the completeness ... the stacktrace, which shows a processDiscriminatorColumn ....
Oh yes ... also for completeness: in the test with a subentity not having a relationship the method calling the processDescr... is a different one inheritancePostProcessingNew() ...
Thanks you all.
2014-01-30 18:35:39,795 [AWT-EventQueue-0] ERROR FWDEngineering - FWDEngineering.execute()
java.lang.NullPointerException
at oracle.dbtools.crest.model.design.engineering.FEEntityHierarchy.processDiscriminatorColumn(FEEntityHierarchy.java:592)
at oracle.dbtools.crest.model.design.engineering.FEEntityHierarchy.createFKeysNew(FEEntityHierarchy.java:921)
at oracle.dbtools.crest.model.design.engineering.FEEntityHierarchy.inheritancePostProcessingNew(FEEntityHierarchy.java:861)
at oracle.dbtools.crest.model.design.engineering.FWDEngineering.processEntities(FWDEngineering.java:275)
at oracle.dbtools.crest.model.design.engineering.FWDEngineering.execute(FWDEngineering.java:107)
at oracle.dbtools.crest.model.design.Design.forwardEngineer(Design.java:895)
at oracle.dbtools.crest.swingui.engineeringcompare.EngineeringCompareDialog.engineer(EngineeringCompareDialog.java:992)
at oracle.dbtools.crest.swingui.engineeringcompare.EngineeringCompareDialog.access$3200(EngineeringCompareDialog.java:125)
at oracle.dbtools.crest.swingui.engineeringcompare.EngineeringCompareDialog$22.actionPerformed(EngineeringCompareDialog.java:1777)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6505)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)
at java.awt.Component.processEvent(Component.java:6270)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2719)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
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at java.awt.EventQueue$4.run(EventQueue.java:706)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
at oracle.javatools.internal.ui.EventQueueWrapper._dispatchEvent(EventQueueWrapper.java:169)
at oracle.javatools.internal.ui.EventQueueWrapper.dispatchEvent(EventQueueWrapper.java:151)
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at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
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at java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:182)
at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:221)
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Hi ViForEver,
thanks for detailed report. We also found the problem in engineering of entity hierarchy when existing attribute is used as discriminator column. No such problem when leave DM to create new discriminator column.
Problem is fixed and fix is included in the forthcoming patch release.
About your questions/observations:
can the subtree generation mode solve it -> Seems I'm not able to set it to an other value than "do not preset" anymore
Generation of table for given entity depends on "Engineer to" flag and it can have different value for each relational model. If the flag is checked then table will be generated for that entity
otherwise attributes will be implemented by another entity down or up in the hierarchy. So two combo boxes in "Entity and sub-tree generation preset" help you to set that flag for entity
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Currently I do not know fit the setting subtree together with discriminator column is logically correct
They are related - discriminator column won't be generated:
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Views always appear as different when engineering from Logical to Relational

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