[rules-users] Updating an existing fact w/o using fact handle

[Fenderbosch, Eric]

Is it required to use WorkingMemory.update to update an existing fact?
I thought if assert behavior was set to equality and you implemented the
equals method properly, then you could simply use WorkingMemory.insert
to overwrite a fact in working memory with a new version.  If this isn't
the case, then are there other settings that will give this behavior?

I'm using 4.0.7.

Thanks for any help.

Eric

Here's my RuleBaseConfiguration:
AlphaNodeHashingThreshold : 3
CompositeKeyDepth : 3
ExecutorServiceorg.drools.concurrent.DefaultExecutorService
RuleBaseUpdateHandler :
org.drools.base.FireAllRulesRuleBaseUpdateListener
AgendaGroupFactory :
[EMAIL PROTECTED]
AssertBehaviour : equality
ConflictResolver : [EMAIL PROTECTED]
ConsequenceExceptionHandler :
[EMAIL PROTECTED]
LogicalOverride : discard
SequentialAgenda : sequential
AlphaMemory : false
IndexLeftBetaMemory : true
IndexRightBetaMemory : true
MaintainTms : true
RemoveIdenities : true
Sequential : false
ShadowProxy : true
ShareAlphaNodes : true
ShareBetaNodes : true
UseStaticObjensis : false


My TestFact class:

public class TestFact {

        private String id;
        private String value;

        public String getId() {
                return id;
        }

        public void setId(String id) {
                this.id = id;
        }

        public String getValue() {
                return value;
        }

        public void setValue(String value) {
                this.value = value;
        }

        @Override
        public int hashCode() {
                return id.hashCode();
        }

        @Override
        public boolean equals(Object obj) {
                if (this == obj) return true;
                if (!(obj instanceof TestFact)) return false;
                TestFact other = (TestFact) obj;
                // not null safe, i know
                return this.id.equals(other.id);
        }
}

And the JUnit Test Case that fails:
        public void testFactUpdate() throws Exception {
                TestFact testFact = new TestFact();
                testFact.setId("1234");
                testFact.setValue("old");

                FactHandle testFactHandle =
workingMemory.insert(testFact);

                TestFact updatedFact = new TestFact();
                updatedFact.setId("1234");
                updatedFact.setValue("new");

                FactHandle updatedFactHandle =
workingMemory.insert(updatedFact);
                // using workingMemory.update here works

                // passes
                assertTrue(testFactHandle == updatedFactHandle);

                TestFact retrievedTestFact = (TestFact)
workingMemory.getObject(testFactHandle);
                // fails
                assertEquals("new", retrievedTestFact.getValue());
        }

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