Package org.drools.lang.descr

Examples of org.drools.lang.descr.BindingDescr

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        final PatternDescr pattern = new PatternDescr( Cheese.class.getName(),
                                                       "stilton" );
        lhs.addDescr( pattern );

        BindingDescr fieldBindingDescr = new BindingDescr( "x",
                                                           "price" );
        pattern.addBinding( fieldBindingDescr );
        fieldBindingDescr = new BindingDescr( "y",
                                              "price" );
        pattern.addBinding( fieldBindingDescr );

        packageDescr.addGlobal( new GlobalDescr( "map",
                                                 "java.util.Map" ) );
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        final PatternDescr pattern = new PatternDescr( Cheese.class.getName(),
                                                       "stilton" );
        lhs.addDescr( pattern );

        final BindingDescr fieldBindingDescr = new BindingDescr( "x",
                                                                 "price" );
        pattern.addBinding( fieldBindingDescr );

        final BindingDescr fieldBindingDescr2 = new BindingDescr( "y",
                                                                  "price" );
        pattern.addBinding( fieldBindingDescr2 );

        packageDescr.addGlobal( new GlobalDescr( "map",
                                                 "java.util.Map" ) );
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    @Test
    public void testBuildRuleBuildContextBaseDescr() {
        // $total : Integer() from accumulate( Cheese( $price : price ) init( int x = 0; ) action( x += $price ) result( new Integer( x ) ) )
        AccumulateDescr accumDescr = new AccumulateDescr();
       
        BindingDescr price = new BindingDescr( "$price", "price" );
        PatternDescr cheeseDescr = new PatternDescr( "org.drools.Cheese" );
        cheeseDescr.addBinding( price );
        accumDescr.setInputPattern( cheeseDescr );
       
        accumDescr.setInitCode( "int x = 0; int y = 0;" );
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        // no constraints, only a binding
        fieldAnd = (AndDescr) second.getConstraint();
        assertEquals( 0,
                      fieldAnd.getDescrs().size() );

        final BindingDescr binding = second.getBindings().get( 0 );
        assertEquals( "a4",
                      binding.getVariable() );
        assertEquals( "a==4",
                      binding.getExpression() );

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

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

        final BindingDescr fieldBindingDescr = second.getBindings().get( 0 );
        assertEquals( "a==4",
                      fieldBindingDescr.getExpression() );
        assertEquals( "a4",
                      fieldBindingDescr.getVariable() );

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

        assertEquals( 1,
                      second.getBindings().size() );
        // check it has field bindings.
        final BindingDescr bindingDescr = second.getBindings().get( 0 );
        assertEquals( "a==4",
                      bindingDescr.getExpression() );
        assertEquals( "a4",
                      bindingDescr.getVariable() );
    }
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                      cheese.getObjectType() );
        assertEquals( 0,
                      cheese.getConstraint().getDescrs().size() );
        assertEquals( 1,
                      cheese.getBindings().size() );
        final BindingDescr fieldBinding = (BindingDescr) cheese.getBindings().get( 0 );
        assertEquals( "type",
                      fieldBinding.getExpression() );
    }
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        final PatternDescr cheese = (PatternDescr) lhs.getDescrs().get( 0 );
        assertEquals( "Cheese",
                      cheese.getObjectType() );
        assertEquals( 2,
                      lhs.getDescrs().size() );
        BindingDescr fieldBinding = (BindingDescr) cheese.getBindings().get( 0 );
        assertEquals( "type == \"stilton\"",
                      fieldBinding.getExpression() );

        final PatternDescr person = (PatternDescr) lhs.getDescrs().get( 1 );
        fieldBinding = (BindingDescr) person.getBindings().get( 0 );
        assertEquals( "name == \"bob\"",
                      fieldBinding.getExpression() );

        ExprConstraintDescr fld = (ExprConstraintDescr) person.getConstraint().getDescrs().get( 0 );
        assertEquals( "likes == $type",
                      fld.getExpression() );
    }
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        final PatternDescr col = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        AndDescr and = (AndDescr) col.getConstraint();
        assertEquals( 1,
                      and.getDescrs().size() );

        final BindingDescr field = (BindingDescr) col.getBindings().get( 0 );
        final ExprConstraintDescr pred = (ExprConstraintDescr) and.getDescrs().get( 0 );
        assertEquals( "age",
                      field.getExpression() );
        assertEquals( "$age2",
                      field.getVariable() );
        assertEqualsIgnoreWhitespace( "$age2 == $age1+2",
                                      pred.getExpression() );
    }
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        final RuleDescr rule = (RuleDescr) pkg.getRules().get( 0 );
        assertEquals( 2,
                      rule.getLhs().getDescrs().size() );

        PatternDescr pattern = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        final BindingDescr fieldBinding = (BindingDescr) pattern.getBindings().get( 0 );
        assertEquals( "$likes",
                      fieldBinding.getVariable() );

        final NotDescr not = (NotDescr) rule.getLhs().getDescrs().get( 1 );
        pattern = (PatternDescr) not.getDescrs().get( 0 );

        final ExprConstraintDescr fld = (ExprConstraintDescr) pattern.getConstraint().getDescrs().get( 0 );
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