Package org.drools.compiler.lang.descr

Examples of org.drools.compiler.lang.descr.RuleDescr

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                                      (String) rule.getConsequence() );
    }

    @Test
    public void testNestedCEs() throws Exception {
        final RuleDescr rule = (RuleDescr) parseResource( "rule",
                                                          "nested_conditional_elements.drl" );

        assertNotNull( rule );

        final AndDescr root = rule.getLhs();
        final NotDescr not1 = (NotDescr) root.getDescrs().get( 0 );
        final AndDescr and1 = (AndDescr) not1.getDescrs().get( 0 );

        final PatternDescr state = (PatternDescr) and1.getDescrs().get( 0 );
        final NotDescr not2 = (NotDescr) and1.getDescrs().get( 1 );
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        final PackageDescr pkg = (PackageDescr) parseResource( "compilationUnit",
                                                               "forall.drl" );

        assertEquals( 1,
                      pkg.getRules().size() );
        final RuleDescr rule = (RuleDescr) pkg.getRules().get( 0 );
        assertEquals( 1,
                      rule.getLhs().getDescrs().size() );

        final ForallDescr forall = (ForallDescr) rule.getLhs().getDescrs().get( 0 );

        assertEquals( 2,
                      forall.getDescrs().size() );
        final PatternDescr pattern = forall.getBasePattern();
        assertEquals( "Person",
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        final PackageDescr pkg = (PackageDescr) parseResource( "compilationUnit",
                                                               "forallwithfrom.drl" );

        assertEquals( 1,
                      pkg.getRules().size() );
        final RuleDescr rule = (RuleDescr) pkg.getRules().get( 0 );
        assertEquals( 1,
                      rule.getLhs().getDescrs().size() );

        final ForallDescr forall = (ForallDescr) rule.getLhs().getDescrs().get( 0 );

        assertEquals( 2,
                      forall.getDescrs().size() );
        final PatternDescr pattern = forall.getBasePattern();
        assertEquals( "Person",
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                      fieldConstr.getExpression() );
    }

    @Test
    public void testInOperator() throws Exception {
        final RuleDescr rule = (RuleDescr) parseResource( "rule",
                                                          "in_operator_test.drl" );

        assertNotNull( rule );

        assertEqualsIgnoreWhitespace( "consequence();",
                                      (String) rule.getConsequence() );
        assertEquals( "simple_rule",
                      rule.getName() );
        assertEquals( 2,
                      rule.getLhs().getDescrs().size() );

        // The first pattern, with 2 restrictions on a single field (plus a
        // connective)
        PatternDescr pattern = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        assertEquals( "Person",
                      pattern.getObjectType() );
        assertEquals( 1,
                      pattern.getConstraint().getDescrs().size() );

        ExprConstraintDescr fld = (ExprConstraintDescr) pattern.getConstraint().getDescrs().get( 0 );
        assertEquals( "age > 30 && < 40",
                      fld.getExpression() );

        // the second col, with 2 fields, the first with 2 restrictions, the
        // second field with one
        pattern = (PatternDescr) rule.getLhs().getDescrs().get( 1 );
        assertEquals( "Vehicle",
                      pattern.getObjectType() );
        assertEquals( 2,
                      pattern.getConstraint().getDescrs().size() );
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    }

    @Test
    public void testNotInOperator() throws Exception {
        final RuleDescr rule = (RuleDescr) parseResource( "rule",
                                                          "notin_operator_test.drl" );

        assertNotNull( rule );

        assertEqualsIgnoreWhitespace( "consequence();",
                                      (String) rule.getConsequence() );
        assertEquals( "simple_rule",
                      rule.getName() );
        assertEquals( 2,
                      rule.getLhs().getDescrs().size() );

        // The first pattern, with 2 restrictions on a single field (plus a
        // connective)
        PatternDescr pattern = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        assertEquals( "Person",
                      pattern.getObjectType() );
        assertEquals( 1,
                      pattern.getConstraint().getDescrs().size() );

        ExprConstraintDescr fld = (ExprConstraintDescr) pattern.getConstraint().getDescrs().get( 0 );
        assertEquals( "age > 30 && < 40",
                      fld.getExpression() );

        // the second col, with 2 fields, the first with 2 restrictions, the
        // second field with one
        pattern = (PatternDescr) rule.getLhs().getDescrs().get( 1 );
        assertEquals( "Vehicle",
                      pattern.getObjectType() );
        assertEquals( 2,
                      pattern.getConstraint().getDescrs().size() );
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        assertEquals( 1,
                      pkg.getGlobals().size() );
        assertEquals( 3,
                      pkg.getRules().size() );

        final RuleDescr rule1 = (RuleDescr) pkg.getRules().get( 0 );
        assertEquals( 2,
                      rule1.getLhs().getDescrs().size() );

        final RuleDescr query1 = (RuleDescr) pkg.getRules().get( 1 );
        assertEquals( 3,
                      query1.getLhs().getDescrs().size() );

        final RuleDescr rule2 = (RuleDescr) pkg.getRules().get( 2 );
        assertEquals( 2,
                      rule2.getLhs().getDescrs().size() );
    }
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        assertEquals( "org.drools.compiler",
                      pkg.getName() );
        assertEquals( 1,
                      pkg.getRules().size() );

        final RuleDescr rule1 = (RuleDescr) pkg.getRules().get( 0 );
        assertEquals( 1,
                      rule1.getLhs().getDescrs().size() );
    }
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        final PackageDescr pkg = (PackageDescr) parseResource( "compilationUnit",
                                                               "accumulateReverse.drl" );

        assertEquals( 1,
                      pkg.getRules().size() );
        final RuleDescr rule = (RuleDescr) pkg.getRules().get( 0 );
        assertEquals( 1,
                      rule.getLhs().getDescrs().size() );

        final PatternDescr out = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        final AccumulateDescr accum = (AccumulateDescr) out.getSource();
        assertEqualsIgnoreWhitespace( "int x = 0 ;",
                                      accum.getInitCode() );
        assertEqualsIgnoreWhitespace( "x++;",
                                      accum.getActionCode() );
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        final PackageDescr pkg = (PackageDescr) parseResource( "compilationUnit",
                                                               "accumulateExternalFunction.drl" );

        assertEquals( 1,
                      pkg.getRules().size() );
        final RuleDescr rule = (RuleDescr) pkg.getRules().get( 0 );
        assertEquals( 1,
                      rule.getLhs().getDescrs().size() );

        final PatternDescr out = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        final AccumulateDescr accum = (AccumulateDescr) out.getSource();
        assertEqualsIgnoreWhitespace( "$age",
                                      accum.getFunctions().get( 0 ).getParams()[0] );
        assertEqualsIgnoreWhitespace( "average",
                                      accum.getFunctions().get( 0 ).getFunction() );
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        final PackageDescr pkg = (PackageDescr) parseResource( "compilationUnit",
                                                               "collect_with_nested_from.drl" );

        assertEquals( 1,
                      pkg.getRules().size() );
        final RuleDescr rule = (RuleDescr) pkg.getRules().get( 0 );
        assertEquals( 1,
                      rule.getLhs().getDescrs().size() );

        final PatternDescr out = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        final CollectDescr collect = (CollectDescr) out.getSource();

        PatternDescr person = (PatternDescr) collect.getInputPattern();
        assertEquals( "Person",
                      person.getObjectType() );
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Related Classes of org.drools.compiler.lang.descr.RuleDescr

  • org.drools.compiler.builder.impl.KnowledgeBuilderImpl
  • org.drools.compiler.builder.impl.KnowledgeBuilderTest
  • org.drools.compiler.compiler.PackageBuilder
  • org.drools.compiler.compiler.PackageBuilderConfigurationTest
  • org.drools.compiler.compiler.PackageBuilderTest
  • org.drools.compiler.compiler.QueryBuilderTest
  • org.drools.compiler.compiler.RuleErrorTest
  • org.drools.compiler.compiler.xml.rules.AndHandler
  • org.drools.compiler.compiler.xml.rules.OrHandler
  • org.drools.compiler.compiler.xml.rules.RuleHandler
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