[jboss-jira] [JBoss JIRA] (DROOLS-625) Implement a passive pattern

[Mario Fusco (JIRA)]

Mario Fusco created DROOLS-625:
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             Summary: Implement a passive pattern
                 Key: DROOLS-625
                 URL: https://issues.jboss.org/browse/DROOLS-625
             Project: Drools
          Issue Type: Feature Request
            Reporter: Mario Fusco
            Assignee: Mario Fusco


Prepending a pattern with a '?' should make it passive (i.e. non reactive to right insertions) as dimostrated by the following test case. 

{code}
    @Test
    public void testPassiveInsert() throws Exception {
        String str =
                "global java.util.List list\n" +
                "rule R when\n" +
                "    $i : Integer()\n" +
                "    ?String( this == $i.toString() )\n" +
                "then\n" +
                "    list.add( $i );\n" +
                "end\n";

        KieSession ksession = new KieHelper()
                .addContent(str, ResourceType.DRL)
                .build()
                .newKieSession();

        List<Integer> list = new ArrayList<Integer>();
        ksession.setGlobal("list", list);

        ksession.insert(1);
        ksession.insert("2");
        ksession.fireAllRules();
        assertEquals(0, list.size());

        ksession.insert("1");
        ksession.fireAllRules();
        assertEquals(0, list.size());

        ksession.insert(2);
        ksession.fireAllRules();
        assertEquals(1, list.size());
        assertEquals(2, (int)list.get(0));
    }
{code}



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