Package org.drools.core.rule

Examples of org.drools.core.rule.Declaration

1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
            if ( fieldBindingDescr.isUnification() ) {
                return;
            }
        }

        Declaration declr = pattern.addDeclaration( fieldBindingDescr.getVariable() );

        final InternalReadAccessor extractor = getFieldReadAccessor( context,
                                                                     fieldBindingDescr,
                                                                     pattern.getObjectType(),
                                                                     fieldBindingDescr.getBindingField(),
                                                                     declr,
                                                                     true );
        declr.setReadAccessor( extractor );

        if ( extractor instanceof ClassFieldReader ) {
            ObjectType patternType = pattern.getObjectType();
            if (patternType instanceof ClassObjectType) {
                Class<?> patternClass = ((ClassObjectType)patternType).getClassType();
View Full Code Here
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
        BoundIdentifiers usedIdentifiers = analysis.getBoundIdentifiers();
        final List<Declaration> tupleDeclarations = new ArrayList<Declaration>();
        final List<Declaration> factDeclarations = new ArrayList<Declaration>();

        for ( String id : usedIdentifiers.getDeclrClasses().keySet() ) {
            final Declaration decl = context.getDeclarationResolver().getDeclaration( context.getRule(), id );
            if ( decl.getPattern() == pattern ) {
                factDeclarations.add( decl );
            } else {
                tupleDeclarations.add( decl );
            }
        }
View Full Code Here
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
                                                                  Map<String, OperatorDescr> aliases) {
        Map<String, EvaluatorWrapper> operators = new HashMap<String, EvaluatorWrapper>();
        for ( Map.Entry<String, OperatorDescr> entry : aliases.entrySet() ) {
            OperatorDescr op = entry.getValue();

            Declaration leftDecl = createDeclarationForOperator(context, pattern, op.getLeftString());
            Declaration rightDecl = createDeclarationForOperator(context, pattern, op.getRightString());

            Target left = leftDecl != null && leftDecl.isPatternDeclaration() ? Target.HANDLE : Target.FACT;
            Target right = rightDecl != null && rightDecl.isPatternDeclaration() ? Target.HANDLE : Target.FACT;

            op.setLeftIsHandle( left == Target.HANDLE );
            op.setRightIsHandle( right == Target.HANDLE );

            Evaluator evaluator = getConstraintBuilder( context ).getEvaluator(
View Full Code Here
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
        }
        return operators;
    }

    private static Declaration createDeclarationForOperator(RuleBuildContext context, Pattern pattern, String expr) {
        Declaration declaration = null;
        int dotPos = expr.indexOf('.');
        if (dotPos < 0) {
            if (!isIdentifier(expr)) {
                return null;
            }
            declaration = context.getDeclarationResolver().getDeclaration( context.getRule(), expr );
            if ( declaration == null) {
                if ( "this".equals( expr ) ) {
                    declaration = createDeclarationObject( context, "this", pattern );
                } else {
                    declaration = new Declaration("this", pattern);
                    try {
                        if ( context.getPkg().getTypeResolver().resolveType( expr ) != null ) {
                            return null;
                        }
                    } catch ( ClassNotFoundException e ) {}
                    context.getPkg().getClassFieldAccessorStore().getReader( ((ClassObjectType) pattern.getObjectType()).getClassName(), expr, declaration );
                }
            }
        } else {
            String part1 = expr.substring(0, dotPos).trim();
            String part2 = expr.substring(dotPos+1).trim();
            if ( "this".equals( part1 ) ) {
                declaration = createDeclarationObject(context, part2, (Pattern) context.getBuildStack().peek());
            } else {
                declaration = context.getDeclarationResolver().getDeclaration( context.getRule(), part1 );
                // if a declaration exists, then it may be a variable direct property access
                if ( declaration != null ) {
                    if ( declaration.isPatternDeclaration() ) {
                        declaration = createDeclarationObject(context, part2, declaration.getPattern());
                    } else {
                        declaration = null;
                    }
                }
            }
View Full Code Here
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
                                               final Set<String> unboundIdentifiers,
                                               final BoundIdentifiers boundIdentifiers,
                                               final List<Declaration> factDeclarations ) {
        for ( Iterator<String> it = unboundIdentifiers.iterator(); it.hasNext(); ) {
            String identifier = it.next();
            Declaration declaration = createDeclarationObject( context,
                                                               identifier,
                                                               pattern );
            // the name may not be a local field, such as enums
            // maybe should have a safer way to detect this, as other issues may cause null too
            // that we would need to know about
            if ( declaration != null ) {
                factDeclarations.add( declaration );
                // implicit bindings need to be added to "local" declarations, as they are nolonger unbound
                if ( boundIdentifiers.getDeclarations() == null ) {
                    boundIdentifiers.setDeclarations( new HashMap<String, Declaration>() );
                }
                boundIdentifiers.getDeclarations().put( identifier,
                                                        declaration );
                boundIdentifiers.getDeclrClasses().put( identifier,
                                                        declaration.getExtractor().getExtractToClass() );
                it.remove();
            }
        }
    }
View Full Code Here
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
                                                 final String expr,
                                                 final Pattern pattern ) {
        final BindingDescr implicitBinding = new BindingDescr( identifier,
                                                               expr );

        final Declaration declaration = new Declaration( identifier,
                                                         null,
                                                         pattern,
                                                         true );

        InternalReadAccessor extractor = getFieldReadAccessor( context,
                                                               implicitBinding,
                                                               pattern.getObjectType(),
                                                               implicitBinding.getExpression(),
                                                               declaration,
                                                               false );

        if ( extractor == null ) {
            return null;
        }

        declaration.setReadAccessor( extractor );

        return declaration;
    }
View Full Code Here
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
        }

        int i = 0;
        try {
            for ( i = 0; i < params.length; i++ ) {
                Declaration declr = pattern.addDeclaration( params[i] );
               
                // this bit is different, notice its the ArrayElementReader that we wire up to, not the declaration.
                ArrayElementReader reader = new ArrayElementReader( arrayExtractor,
                                                                    i,
                                                                    context.getDialect().getTypeResolver().resolveType( types[i] ) );
                PatternBuilder.registerReadAccessor( context, argsObjectType, "elements", reader );
               
                declr.setReadAccessor( reader );
               
                declarations[i] = declr;
             }

            query.setParameters( declarations );
View Full Code Here
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
        BoundIdentifiers usedIdentifiers = analysis.getBoundIdentifiers();
        final List<Declaration> tupleDeclarations = new ArrayList<Declaration>();
        final List<Declaration> factDeclarations = new ArrayList<Declaration>();

        for ( String id : usedIdentifiers.getDeclrClasses().keySet() ) {
            final Declaration decl = context.getDeclarationResolver().getDeclaration( context.getRule(), id );
            if ( decl.getPattern() == pattern ) {
                factDeclarations.add( decl );
            } else {
                tupleDeclarations.add( decl );
            }
        }
View Full Code Here
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
                                                                  Map<String, OperatorDescr> aliases) {
        Map<String, EvaluatorWrapper> operators = new HashMap<String, EvaluatorWrapper>();
        for ( Map.Entry<String, OperatorDescr> entry : aliases.entrySet() ) {
            OperatorDescr op = entry.getValue();

            Declaration leftDecl = createDeclarationForOperator(context, pattern, op.getLeftString());
            Declaration rightDecl = createDeclarationForOperator(context, pattern, op.getRightString());

            Target left = leftDecl != null && leftDecl.isPatternDeclaration() ? Target.HANDLE : Target.FACT;
            Target right = rightDecl != null && rightDecl.isPatternDeclaration() ? Target.HANDLE : Target.FACT;

            op.setLeftIsHandle( left == Target.HANDLE );
            op.setRightIsHandle( right == Target.HANDLE );

            Evaluator evaluator = getConstraintBuilder( context ).getEvaluator(
View Full Code Here
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
        }
        return operators;
    }

    private static Declaration createDeclarationForOperator(RuleBuildContext context, Pattern pattern, String expr) {
        Declaration declaration = null;
        int dotPos = expr.indexOf('.');
        if (dotPos < 0) {
            if (!isIdentifier(expr)) {
                return null;
            }
            declaration = context.getDeclarationResolver().getDeclaration( context.getRule(), expr );
            if ( declaration == null) {
                if ( "this".equals( expr ) ) {
                    declaration = createDeclarationObject( context, "this", pattern );
                } else {
                    declaration = new Declaration("this", pattern);
                    try {
                        if ( context.getPkg().getTypeResolver().resolveType( expr ) != null ) {
                            return null;
                        }
                    } catch ( ClassNotFoundException e ) {}
                    context.getPkg().getClassFieldAccessorStore().getReader( ((ClassObjectType) pattern.getObjectType()).getClassName(), expr, declaration );
                }
            }
        } else {
            String part1 = expr.substring(0, dotPos).trim();
            String part2 = expr.substring(dotPos+1).trim();
            if ( "this".equals( part1 ) ) {
                declaration = createDeclarationObject(context, part2, (Pattern) context.getBuildStack().peek());
            } else {
                declaration = context.getDeclarationResolver().getDeclaration( context.getRule(), part1 );
                // if a declaration exists, then it may be a variable direct property access
                if ( declaration != null ) {
                    if ( declaration.isPatternDeclaration() ) {
                        declaration = createDeclarationObject(context, part2, declaration.getPattern());
                    } else {
                        declaration = null;
                    }
                }
            }
View Full Code Here
TOP

Related Classes of org.drools.core.rule.Declaration

  • org.drools.compiler.phreak.BetaNodeBuilder
  • org.drools.compiler.rule.builder.dialect.asm.AbstractASMEvalBuilder
  • org.drools.compiler.rule.builder.dialect.DialectUtil
  • org.drools.compiler.rule.builder.dialect.java.AccumulateTemplateTest
  • org.drools.compiler.rule.builder.dialect.java.JavaAccumulateBuilder
  • org.drools.compiler.rule.builder.dialect.java.JavaConsequenceBuilderTest
  • org.drools.compiler.rule.builder.dialect.mvel.MVELAccumulateBuilder
  • org.drools.compiler.rule.builder.dialect.mvel.MVELConsequenceBuilderTest
  • org.drools.compiler.rule.builder.dialect.mvel.MVELEvalBuilderTest
  • org.drools.compiler.rule.builder.dialect.mvel.MVELPredicateBuilderTest
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.