Misleading exception when SDO does not find definition for specific column
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Key: TUSCANY-740
URL: http://issues.apache.org/jira/browse/TUSCANY-740
Project: Tuscany
Issue Type: Bug
Components: Java BigBank Scenario, Java SDO Implementation
Affects Versions: Java-M2
Reporter: Luciano Resende
Fix For: Java-M2
While working on Bigbank, was getting the following exception :
Exception in thread "main" java.lang.NullPointerException
at
org.eclipse.emf.ecore.impl.BasicEObjectImpl.eDerivedStructuralFeatureID(BasicEObjectImpl.java:1072)
at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eSet
(BasicEObjectImpl.java:650)
at org.apache.tuscany.sdo.impl.DataObjectImpl.set(DataObjectImpl.java:140)
at
org.apache.tuscany.das.rdb.graphbuilder.impl.DataObjectMaker.createAndAddDataObject(DataObjectMaker.java
:90)
at
org.apache.tuscany.das.rdb.graphbuilder.impl.ResultSetProcessor.addRowToGraph(ResultSetProcessor.java:126)
at
org.apache.tuscany.das.rdb.graphbuilder.impl.ResultSetProcessor.processResultSet(ResultSetProcessor.java
:97)
at
org.apache.tuscany.das.rdb.graphbuilder.impl.ResultSetProcessor.processResults(ResultSetProcessor.java:81)
at
org.apache.tuscany.das.rdb.impl.ReadCommandImpl.buildGraph(ReadCommandImpl.java:92)
at
org.apache.tuscany.das.rdb.impl.ReadCommandImpl.executeQuery(ReadCommandImpl.java:61)
at
bigbank.account.services.accountdb.AccountDBInit.testStrockPurchaseThroughDAS(AccountDBInit.java:271)
at bigbank.account.services.accountdb.AccountDBInit.main
(AccountDBInit.java:466)
This was due to a mismatch between data returned from the query and the
generated DataObject model. The query in this case is doing "select *
from stocks", which will return columns ID, Symbol, Quantity,
purchasePrice, purchaseDate, and purchaseLotNumber. The wsdl used to
generated the SDO model doesn't have an ID column. Looking at
AccountDBInit, it looks like ID is supposed to identify a customer.
Nothing in the StockSummary type in the wsdl looks like it corresponds
to this.
Regardless, we need to return a meaningful exception for this rather
than the NPE from SDO.
See discussion thread for details :
http://www.mail-archive.com/tuscany-dev%40ws.apache.org/msg08177.html
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