Package org.drools.compiler.lang.descr

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

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

        assertEquals( 2,
                      forall.getDescrs().size() );
        final PatternDescr pattern = forall.getBasePattern();
        assertEquals( "Person",
                      pattern.getObjectType() );
        final List<BaseDescr> remaining = forall.getRemainingPatterns();
        assertEquals( 1,
                      remaining.size() );
        final PatternDescr cheese = (PatternDescr) remaining.get( 0 );
        assertEquals( "Cheese",
                      cheese.getObjectType() );
    }
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        final ForallDescr forall = (ForallDescr) rule.getLhs().getDescrs().get( 0 );

        assertEquals( 2,
                      forall.getDescrs().size() );
        final PatternDescr pattern = forall.getBasePattern();
        assertEquals( "Person",
                      pattern.getObjectType() );
        assertEquals( "$village",
                      ((FromDescr) pattern.getSource()).getDataSource().toString() );
        final List<BaseDescr> remaining = forall.getRemainingPatterns();
        assertEquals( 1,
                      remaining.size() );
        final PatternDescr cheese = (PatternDescr) remaining.get( 0 );
        assertEquals( "Cheese",
                      cheese.getObjectType() );
        assertEquals( "$cheesery",
                      ((FromDescr) cheese.getSource()).getDataSource().toString() );
    }
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        AndDescr descrs = ((RuleDescr) parse( "rule",
                                              text )).getLhs();

        assertEquals( 2,
                      descrs.getDescrs().size() );
        PatternDescr pat = (PatternDescr) descrs.getDescrs().get( 1 );
        ExprConstraintDescr fieldConstr = (ExprConstraintDescr) pat.getConstraint().getDescrs().get( 0 );

        assertEquals( "city memberOf $cities",
                      fieldConstr.getExpression() );
    }
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        AndDescr descrs = ((RuleDescr) parse( "rule",
                                              text )).getLhs();

        assertEquals( 2,
                      descrs.getDescrs().size() );
        PatternDescr pat = (PatternDescr) descrs.getDescrs().get( 1 );
        ExprConstraintDescr fieldConstr = (ExprConstraintDescr) pat.getConstraint().getDescrs().get( 0 );

        assertEquals( "city not memberOf $cities",
                      fieldConstr.getExpression() );
    }
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        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() );

        fld = (ExprConstraintDescr) pattern.getConstraint().getDescrs().get( 0 );
        assertEquals( "type in ( \"sedan\", \"wagon\" )",
                      fld.getExpression() );

        // now the second field
        fld = (ExprConstraintDescr) pattern.getConstraint().getDescrs().get( 1 );
        assertEquals( "age < 3",
                      fld.getExpression() );

    }
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        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() );

        fld = (ExprConstraintDescr) pattern.getConstraint().getDescrs().get( 0 );
        assertEquals( "type not in ( \"sedan\", \"wagon\" )",
                      fld.getExpression() );

        // now the second field
        fld = (ExprConstraintDescr) pattern.getConstraint().getDescrs().get( 1 );
        assertEquals( "age < 3",
                      fld.getExpression() );

    }
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    }

    @Test
    public void testCheckOrDescr() throws Exception {
        final String text = "rule X when Person( eval( age == 25 ) || ( eval( name.equals( \"bob\" ) ) && eval( age == 30 ) ) ) then end";
        PatternDescr pattern = (PatternDescr) ((RuleDescr) parse( "rule",
                                                                  text )).getLhs().getDescrs().get( 0 );

        assertEquals( 1,
                      pattern.getDescrs().size() );
        assertEquals( pattern.getConstraint().getClass(),
                      AndDescr.class );

        assertEquals( ExprConstraintDescr.class,
                      pattern.getConstraint().getDescrs().get( 0 ).getClass() );

    }
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        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() );

        AndDescr and = (AndDescr) pattern.getConstraint();
        ExprConstraintDescr fld = (ExprConstraintDescr) and.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() );

        and = (AndDescr) pattern.getConstraint();
        fld = (ExprConstraintDescr) and.getDescrs().get( 0 );
        assertEquals( "type == \"sedan\" || == \"wagon\"",
                          fld.getExpression() );

        // now the second field
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        assertEquals( 3,
                      lhs.getDescrs().size() );

        // Check first pattern
        final PatternDescr first = (PatternDescr) lhs.getDescrs().get( 0 );
        assertEquals( "foo3",
                      first.getIdentifier() );
        assertEquals( "Bar",
                      first.getObjectType() );
        assertEquals( 1,
                      first.getConstraint().getDescrs().size() );

        // Check second pattern
        final PatternDescr second = (PatternDescr) lhs.getDescrs().get( 1 );
        assertEquals( "foo4",
                      second.getIdentifier() );
        assertEquals( "Bar",
                      second.getObjectType() );

        final PatternDescr third = (PatternDescr) lhs.getDescrs().get( 2 );
        assertEquals( "Baz",
                      third.getObjectType() );

        assertEquals( 4,
                      first.getLine() );
        assertEquals( 5,
                      second.getLine() );
        assertEquals( 6,
                      third.getLine() );
    }
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                      lhs.getDescrs().size() );

        // System.err.println( lhs.getDescrs() );

        // Check first pattern
        final PatternDescr first = (PatternDescr) lhs.getDescrs().get( 0 );
        assertEquals( "foo3",
                      first.getIdentifier() );
        assertEquals( "Bar",
                      first.getObjectType() );

        assertEquals( 1,
                      first.getConstraint().getDescrs().size() );

        // LiteralDescr constraint = (LiteralDescr) first.getDescrs().get( 0 );
        AndDescr and = (AndDescr) first.getConstraint();
        ExprConstraintDescr fld = (ExprConstraintDescr) and.getDescrs().get( 0 );
        assertNotNull( fld );

        assertEquals( "a==3",
                      fld.getExpression() );

        // Check second pattern
        final PatternDescr second = (PatternDescr) lhs.getDescrs().get( 1 );
        assertEquals( "foo4",
                      second.getIdentifier() );
        assertEquals( "Bar",
                      second.getObjectType() );

        assertEquals( 1,
                      second.getDescrs().size() );

        final ExprConstraintDescr fieldBindingDescr = (ExprConstraintDescr) second.getDescrs().get( 0 );
        assertEquals( "a4:a==4",
                      fieldBindingDescr.getExpression() );

        // Check third pattern
        final PatternDescr third = (PatternDescr) lhs.getDescrs().get( 2 );
        assertNull( third.getIdentifier() );
        assertEquals( "Baz",
                      third.getObjectType() );

        assertEqualsIgnoreWhitespace( "if ( a == b ) { " + "  assert( foo3 );" + "} else {" + "  retract( foo4 );" + "}" + "  System.out.println( a4 );",
                                      (String) rule.getConsequence() );
    }
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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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