[jboss-jira] [JBoss JIRA] Created: (JBRULES-3065) Facts currently have to be Java Beans, but Mark has used POJOS, except the attached example does not work.
Facts currently have to be Java Beans, but Mark has used POJOS, except the attached
example does not work.
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Key: JBRULES-3065
URL: https://issues.jboss.org/browse/JBRULES-3065
Project: Drools
Issue Type: Feature Request
Security Level: Public (Everyone can see)
Reporter: Jim Tyrrell
Assignee: Mark Proctor
Attachments: Screen shot 2011-06-06 at 2.02.00 PM.png, Screen shot 2011-06-06 at
2.02.14 PM.png, Screen shot 2011-06-06 at 2.02.37 PM.png, SimpleSpreadSheetBasedPOJO.java,
SimpleSpreadSheetBasedTest.drl, SimpleSpreadSheetBasedTest.java
When modeling spreadsheets for form/spreadsheet validation, see the attached screen shots,
all of the tools use the convention of A, B, C for the column names (Open Office, Excel,
and Numbers). When trying to create an object with variable names of A, B, etc, I get
errors in the JBDS as the below:
Description Resource Path Location Type
BuildError: Unable to create Field Extractor for 'A' of '[ClassObjectType
class=com.sample.SimpleSpreadSheetBasedPOJO]' in rule 'Validation
1' SimpleSpreadSheetBasedTest.drl /BugProject/src/main/rules line 16 Drools Error
No amount of massaging can get this error to go away.
When I run the attached classes, I get the following error message:
Unable to create Field Extractor for 'A' of '[ClassObjectType
class=com.sample.SimpleSpreadSheetBasedPOJO]' in rule 'Validation 1' : [Rule
name='Validation 1']
java.lang.IllegalArgumentException: Could not parse knowledge.
at
com.sample.SimpleSpreadSheetBasedTest.readKnowledgeBase(SimpleSpreadSheetBasedTest.java:48)
at com.sample.SimpleSpreadSheetBasedTest.main(SimpleSpreadSheetBasedTest.java:23)
Even though a getter and setter method is available.
So I created an ID field, this seems to work fine, but if I create a field A1, this does
not, if I create ID1, this seems to work...so something is amiss in the way in which
fields, methods, etc are marshaled.
If a Java Bean is required that is fine, but then we need to retreat from marketing POJOs
as facts, and also possibly create a better error message that tells us to use Java Beans
and not POJOs.
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