Package org.drools.compiler.lang.descr

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

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        final PackageDescr pkg = (PackageDescr) parseResource( "compilationUnit",
                                                               "accumulate_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 AccumulateDescr accumulate = (AccumulateDescr) out.getSource();

        PatternDescr person = (PatternDescr) accumulate.getInputPattern();
        assertEquals( "Person",
                      person.getObjectType() );
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                                                               "accumulateMultipleFunctions.drl" );

        assertEquals( 1,
                      pkg.getRules().size() );

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

        PatternDescr out = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        assertEquals( "Object[]",
                      out.getObjectType() );
        AccumulateDescr accum = (AccumulateDescr) out.getSource();
        assertTrue( accum.isExternalFunction() );
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                                                        drl );

        assertEquals( 1,
                      pkg.getRules().size() );

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

        PatternDescr out = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        assertEquals( "Object[]",
                      out.getObjectType() );
        AccumulateDescr accum = (AccumulateDescr) out.getSource();
        assertTrue( accum.isExternalFunction() );
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                                                        drl );

        assertEquals( 1,
                      pkg.getRules().size() );

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

        PatternDescr out = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        assertEquals( "Number",
                      out.getObjectType() );
        AccumulateDescr accum = (AccumulateDescr) out.getSource();
        assertTrue( accum.isExternalFunction() );
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                imp.getFunctionName() );

        assertEquals( 1,
                      pkg.getRules().size() );

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

        PatternDescr out = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        assertEquals( "Object[]",
                      out.getObjectType() );
        AccumulateDescr accum = (AccumulateDescr) out.getSource();
        assertTrue( accum.isExternalFunction() );
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                                                               "accumulateMultipleFunctionsConstraint.drl" );

        assertEquals( 1,
                      pkg.getRules().size() );

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

        PatternDescr out = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        assertEquals( "Object[]",
                      out.getObjectType() );
        assertEquals( 2,
                      out.getConstraint().getDescrs().size() );
        assertEquals( "$a1 > 10 && $M1 <= 100",
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        final PackageDescr pkg = (PackageDescr) parseResource( "compilationUnit",
                                                               "or_ce.drl" );

        assertEquals( 1,
                      pkg.getRules().size() );
        final RuleDescr rule = (RuleDescr) pkg.getRules().get( 0 );
        assertEquals( 2,
                      rule.getLhs().getDescrs().size() );

        final PatternDescr person = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        assertEquals( "Person",
                      person.getObjectType() );
        assertEquals( "$p",
                      person.getIdentifier() );

        final OrDescr or = (OrDescr) rule.getLhs().getDescrs().get( 1 );
        assertEquals( 2,
                      or.getDescrs().size() );

        final PatternDescr cheese1 = (PatternDescr) or.getDescrs().get( 0 );
        assertEquals( "Cheese",
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    }

    @Test
    public void testRuleSingleLine() throws Exception {
        final String text = "rule \"another test\" salience 10 when eval( true ) then System.out.println(1); end";
        RuleDescr rule = (RuleDescr) parse( "rule",
                                            text );

        assertEquals( "another test",
                      rule.getName() );
        assertEquals( "System.out.println(1); ",
                      rule.getConsequence() );
    }
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    }

    @Test
    public void testRuleTwoLines() throws Exception {
        final String text = "rule \"another test\" salience 10 when eval( true ) then System.out.println(1);\n end";
        RuleDescr rule = (RuleDescr) parse( "rule",
                                            text );

        assertEquals( "another test",
                      rule.getName() );
        assertEquals( "System.out.println(1);\n ",
                      rule.getConsequence() );
    }
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        final PackageDescr pkg = (PackageDescr) parseResource( "compilationUnit",
                                                               "accumulate_multi_pattern.drl" );

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

        final PatternDescr outPattern = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        final AccumulateDescr accum = (AccumulateDescr) outPattern.getSource();
        assertEqualsIgnoreWhitespace( "$counter",
                                      outPattern.getIdentifier() );
        assertEqualsIgnoreWhitespace( "int x = 0 ;",
                                      accum.getInitCode() );
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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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