Package org.drools.compiler.lang.descr

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

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        final String text = "rule \"infinity\"\n" +
                            "when\n" +
                            "    StockTick( this after[-*,*] $another )\n" +
                            "then\n" +
                            "end";
        PatternDescr pattern = (PatternDescr) ((RuleDescr) parse( "rule",
                                                                  text )).getLhs().getDescrs().get( 0 );

        assertEquals( "StockTick",
                      pattern.getObjectType() );
        ExprConstraintDescr constr = (ExprConstraintDescr) pattern.getConstraint().getDescrs().get( 0 );
        assertEquals( "this after[-*,*] $another",
                      constr.getText() );

    }
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        assertEquals( 1,
                      wdd.getAnnotations().size() );
        assertEquals( "\"last 10 stock ticks\"",
                      wdd.getAnnotation( "doc" ).getValue() );

        PatternDescr pd = wdd.getPattern();
        assertNotNull( pd );
        assertEquals( "$s",
                      pd.getIdentifier() );
        assertEquals( "StockTick",
                      pd.getObjectType() );
        assertEquals( "stStream",
                      pd.getSource().getText() );

        assertEquals( 1,
                      pd.getBehaviors().size() );
        BehaviorDescr bd = pd.getBehaviors().get( 0 );
        assertEquals( "window",
                      bd.getType() );
        assertEquals( "length",
                      bd.getSubType() );
        assertEquals( 2,
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        assertEquals( "X",
                      rd.getName() );
        assertEquals( 1,
                      rd.getLhs().getDescrs().size() );

        PatternDescr pd = (PatternDescr) rd.getLhs().getDescrs().get(0);
        assertNotNull( pd );
        assertEquals( "StockTick",
                      pd.getObjectType() );
        assertEquals( "Y",
                      pd.getSource().getText() );
    }
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        descr.setFieldName( name );
        return this;
    }

    public FieldDescrBuilder type( String type ) {
        descr.setPattern( new PatternDescr( type ) );
        return this;
    }
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    }

    @Test
    public void testConstraintAndConnective() throws Exception {
        final String text = "rule X when Person( age < 42 && location==\"atlanta\") then end";
        PatternDescr pattern = (PatternDescr) ((RuleDescr) parse( "rule",
                                                                  text )).getLhs().getDescrs().get( 0 );

        assertEquals( 1,
                      pattern.getDescrs().size() );
        ExprConstraintDescr fcd = (ExprConstraintDescr) pattern.getDescrs().get( 0 );
        assertEquals( "age < 42 && location==\"atlanta\"",
                      fcd.getExpression() );
    }
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    }

    @Test
    public void testConstraintOrConnective() throws Exception {
        final String text = "rule X when Person( age < 42 || location==\"atlanta\") then end";
        PatternDescr pattern = (PatternDescr) ((RuleDescr) parse( "rule",
                                                                  text )).getLhs().getDescrs().get( 0 );

        assertEquals( 1,
                      pattern.getDescrs().size() );
        ExprConstraintDescr fcd = (ExprConstraintDescr) pattern.getDescrs().get( 0 );
        assertEquals( "age < 42 || location==\"atlanta\"",
                      fcd.getExpression() );
    }
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        AndDescr descrs = (AndDescr) ((RuleDescr) parse( "rule",
                                                         text )).getLhs();

        assertEquals( 1,
                      descrs.getDescrs().size() );
        PatternDescr pat = (PatternDescr) descrs.getDescrs().get( 0 );
        ExprConstraintDescr fieldConstr = (ExprConstraintDescr) pat.getConstraint().getDescrs().get( 0 );

        assertEquals( "bar > 1 || == 1",
                      fieldConstr.getExpression() );
    }
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                      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() );
        assertEqualsIgnoreWhitespace( "x--;",
                                      accum.getReverseCode() );
        assertEqualsIgnoreWhitespace( "new Integer(x)",
                                      accum.getResultCode() );
        assertFalse( accum.isExternalFunction() );

        final PatternDescr pattern = (PatternDescr) accum.getInputPattern();
        assertEquals( "Person",
                      pattern.getObjectType() );
    }
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                      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() );
        assertTrue( accum.isExternalFunction() );

        final PatternDescr pattern = (PatternDescr) accum.getInputPattern();
        assertEquals( "Person",
                      pattern.getObjectType() );
    }
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                      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() );

        final CollectDescr collect2 = (CollectDescr) person.getSource();

        final PatternDescr people = collect2.getInputPattern();
        assertEquals( "People",
                      people.getObjectType() );
    }
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Related Classes of org.drools.compiler.lang.descr.PatternDescr

  • org.drools.compiler.builder.impl.ClassDefinitionFactory
  • org.drools.compiler.builder.impl.ClassHierarchyManager
  • org.drools.compiler.builder.impl.KnowledgeBuilderTest
  • org.drools.compiler.builder.impl.TypeDeclarationBuilder
  • org.drools.compiler.compiler.PackageBuilder
  • org.drools.compiler.compiler.PackageBuilderTest
  • org.drools.compiler.compiler.QueryBuilderTest
  • org.drools.compiler.compiler.xml.rules.AccumulateHandler
  • org.drools.compiler.compiler.xml.rules.CollectHandler
  • org.drools.compiler.compiler.xml.rules.ExprConstraintHandler
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