Update attribute on document creation

Question

I'm trying to modify the name of a created document. In my S_TieDocument class, I use the ExtendedPreInsert method to do this but can't get it to work. Here's the code I use:
in S_TieDocument:
public void extendedPreInsert(OperationState opState, S_LibraryObjectDefinition def)
throws IfsException {
super.extendedPreInsert(opState, def);
System.out.println("********** S_TieDocument.extendedPreInsert");
//delegate the work
myOverride.extendedPreInsert(this, getSession(), opState, def);
in MyOverride:
public void extendedPreInsert(S_Document doc, S_LibrarySession session, OperationState opState, S_LibraryObjectDefinition def)
throws IfsException {
//get the document name
AttributeValue nameVal = def.getAttribute(Document.NAME_ATTRIBUTE);
String docName = nameVal.getString(session);
//modify the name
AttributeValue val = AttributeValue.newAttributeValue("Something_" + docName);
val.setName(Document.NAME_ATTRIBUTE);
def.setSystemSetAttribute(val);
//name attribute is updated but doesn't seem to be used
//try manipulating the document directly
doc.setAttribute(val);
//throws NullPointerException:
//try the update method
def.setSystemSetAttribute(val);
doc.update(opState, def);
//throws same NPE as above
I've tried 3 methods so far:
-modifying the attribute in the LibraryObjectDefinition; this does modify the attribute but the documents name stays the same; ie it looks like the changed attributes are not used.
-modify an attribute of the document
-change the LibraryObjectDefenition and update the document with it
these last 2 throw an exception in one of the Ifs classes:
java.lang.NullPointerException
at java.util.Hashtable.put(Hashtable.java:402)
at oracle.ifs.server.OperationState.markOperationInProgress(OperationState.java:406)
at oracle.ifs.server.OperationState.addAtomicOperation(OperationState.java:299)
at oracle.ifs.server.OperationState.addAtomicOperation(OperationState.java:275)
at oracle.ifs.server.S_LibraryObject.preUpdate(S_LibraryObject.java:1496)
at oracle.ifs.server.S_LibraryObject.update(S_LibraryObject.java:1475)
at oracle.ifs.server.S_LibraryObject.setAttributes(S_LibraryObject.java:1452)
at oracle.ifs.server.S_LibraryObject.setAttribute(S_LibraryObject.java:1171)
Does anyone have an idea of how to do this?
Cheers Hans

Answer 1

Some more info:
The first method ( )
leads to a call on extendedPreUpdate & extendedPostUpdate,
in which the name attribute is the original name again...
from the logfile (I print the attibutes&values here):
6/16/03 12:20 PM NodeGuardian: ********** S_TieDocument.extendedPostInsert
6/16/03 12:20 PM NodeGuardian: ExtendedPostInsert called
6/16/03 12:20 PM NodeGuardian: Attributes: 14
6/16/03 12:20 PM NodeGuardian: CONTENTQUOTA = oracle.ifs.common.AttributeValuePublicObject@ebf070d
6/16/03 12:20 PM NodeGuardian: NAME = Something_hanstest.txt
6/16/03 12:20 PM NodeGuardian: LOCKOBJECT = null
6/16/03 12:20 PM NodeGuardian: ACL = oracle.ifs.common.AttributeValuePublicObject@ea2070d
6/16/03 12:20 PM NodeGuardian: RESOLVEDPUBLICOBJECT = oracle.ifs.common.AttributeValuePublicObject@eb9870d
6/16/03 12:20 PM NodeGuardian: OWNER = oracle.ifs.common.AttributeValueDirectoryObject@eac870d
6/16/03 12:20 PM NodeGuardian: CREATEDATE = 2003-06-16 12:20:52.0
6/16/03 12:20 PM NodeGuardian: CONTENTOBJECT = oracle.ifs.common.AttributeValueSystemObject@738a470a
6/16/03 12:20 PM NodeGuardian: READBYOWNER = false
6/16/03 12:20 PM NodeGuardian: LOCKSTATE = 0
6/16/03 12:20 PM NodeGuardian: DELETOR = null
6/16/03 12:20 PM NodeGuardian: LASTMODIFIER = oracle.ifs.common.AttributeValueDirectoryObject@f55c70d
6/16/03 12:20 PM NodeGuardian: CREATOR = oracle.ifs.common.AttributeValueDirectoryObject@f53070d
6/16/03 12:20 PM NodeGuardian: LASTMODIFYDATE = 2003-06-16 12:20:52.0
6/16/03 12:20 PM NodeGuardian: Document Name is : Something_hanstest.txt
6/16/03 12:20 PM NodeGuardian: ContentSize = 8
6/16/03 12:20 PM NodeGuardian: ********** S_TieDocument.extendedPreUpdate
6/16/03 12:20 PM NodeGuardian: Attributes: 3
6/16/03 12:20 PM NodeGuardian: NAME = hanstest.txt
6/16/03 12:20 PM FtpServer: 2/hans01: ANSWER: 226 Binary transfer complete.
6/16/03 12:20 PM NodeGuardian: LASTMODIFIER = oracle.ifs.common.AttributeValueDirectoryObject@539d870a
6/16/03 12:20 PM NodeGuardian: LASTMODIFYDATE = 2003-06-16 12:20:52.0
6/16/03 12:20 PM NodeGuardian: ExtendedPreUpdate called
6/16/03 12:20 PM NodeGuardian: ********** S_TieDocument.extendedProstUpdate
6/16/03 12:20 PM NodeGuardian: ExtendedPostUpdate called
6/16/03 12:20 PM NodeGuardian: Attributes: 3
6/16/03 12:20 PM NodeGuardian: NAME = hanstest.txt
6/16/03 12:20 PM NodeGuardian: LASTMODIFIER = oracle.ifs.common.AttributeValueDirectoryObject@539d870a
6/16/03 12:20 PM NodeGuardian: LASTMODIFYDATE = 2003-06-16 12:20:52.0