Hi David!
Seems like you are experiencing the same crash as Daniele.
Unfortunately the line numbers in the stack trace don't much with what
I have in the Google Code repository.
Your stack trace shows a call to
_aliasForRelatedAttributeRelationshipPath at line 99 of
ExistsInRelationshipQualifierSupport. I find 2 such calls. One at line
119 and one at 123. Which one is it?
How come the lines don't match?
What do the joins between the tables look like? Single or compound
foreign keys? Any flattened relationships?
Could you tell me what expression, subExpression, sourceAttribute and
destinationAttribute look like at the moment of the crash?
Pierre
On Dec 5, 2007, at 2:51 AM, David Holt wrote:
Hello All,
I am finally getting the chance to use the QualifierAdditions from
Pierre Bernard (thanks Pierre!). I am using the following code that
generates a NullPointerException. Can anyone see what I have done
wrong?
I am trying to show all Artifacts that have not been specified as
"favourites".
public EOFetchSpecification getPubliclyDisplayed() {
EOQualifier q1 = new EOKeyValueQualifier( "userName",
EOQualifier.QualifierOperatorEqual, applicationUser.userName());
ExistsInRelationshipQualifier q2 = new
ExistsInRelationshipQualifier("applicationUsers", q1);
// the inverse
EONotQualifier notq2 = new EONotQualifier(q2);
// EOQualifier q3 = new EOAndQualifier( new NSArray( new Object[]
{ q1, notq2 } ) );
EOFetchSpecification fs = new EOFetchSpecification( "Artifact",
notq2, null );
return fs;
}
Stack trace:
java.lang.NullPointerException
File
Line#
Method
Package
EOSQLExpression.java
324
_aliasForRelationshipPath
com.webobjects.eoaccess
EOSQLExpression.java
259
_aliasForRelatedAttributeRelationshipPath
com.webobjects.eoaccess
ExistsInRelationshipQualifierSupport.java
99
sqlStringForSQLExpression
com.houdah.webobjects.eoaccess.qualifiers
EOQualifierSQLGeneration.java
151
_sqlStringForSQLExpression
com.webobjects.eoaccess
EOSQLExpression.java
1024
prepareSelectExpressionWithAttributes
com.webobjects.eoaccess
JDBCExpression.java
273
prepareSelectExpressionWithAttributes
com.webobjects.jdbcadaptor
EOSQLExpressionFactory.java
226
selectStatementForAttributes
com.webobjects.eoaccess
ERXSQLHelper.java
461
sqlExpressionForFetchSpecification
er.extensions
ERXSQLHelper.java
513
rowCountForFetchSpecification
er.extensions
ERXEOAccessUtilities.java
284
rowCountForFetchSpecification
er.extensions
ERXBatchingDisplayGroup.java
189
rowCount
er.extensions
ERXBatchingDisplayGroup.java
216
refetch
er.extensions
ERXBatchingDisplayGroup.java
276
fetch
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