Package org.drools.rule

Examples of org.drools.rule.Pattern

2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
                                                             ctr,
                                                             pkg,
                                                             ctr.getDialect( pkgRegistry.getDialect() ) );
            final RuleConditionBuilder builder = (RuleConditionBuilder) context.getDialect().getBuilder( wd.getPattern().getClass() );
            if (builder != null) {
                final Pattern pattern = (Pattern) builder.build( context,
                                                                 wd.getPattern(),
                                                                 null );

                window.setPattern( pattern );
            } else {
View Full Code Here
61
62
63
64
65
66
67
68
69
70
71
72
73
74
        MVELDialect dialect = (MVELDialect) context.getDialect( context.getDialect().getId() );

        try {
            Map<String, Class< ? >> declIds = context.getDeclarationResolver().getDeclarationClasses( context.getRule() );

            Pattern p = (Pattern) context.getBuildStack().peek();
            if ( p.getObjectType() instanceof ClassObjectType ) {
                declIds.put( "this",
                             ((ClassObjectType) p.getObjectType()).getClassType() );
            }
           
            MVELCompilationUnit unit = dialect.getMVELCompilationUnit((String) predicateDescr.getContent(),
                                                                      analysis, 
                                                                      previousDeclarations,
View Full Code Here
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
public class QueryBuilder implements EngineElementBuilder {
    public Pattern build(final RuleBuildContext context,
                         final QueryDescr queryDescr) {
        ObjectType queryObjectType = ClassObjectType.DroolsQuery_ObjectType;
        final Pattern pattern = new Pattern( context.getNextPatternId(),
                                             0, // offset is 0 by default
                                             queryObjectType,
                                             null );
       
        final InternalReadAccessor extractor = PatternBuilder.getFieldReadAccessor(context, queryDescr, queryObjectType, "name", null, true);
        final QueryNameConstraint constraint = new QueryNameConstraint(extractor, queryDescr.getName());

        PatternBuilder.registerReadAccessor( context, queryObjectType, "name", constraint );

        // adds appropriate constraint to the pattern
        pattern.addConstraint( constraint );

        ObjectType argsObjectType = ClassObjectType.DroolsQuery_ObjectType;
       
        InternalReadAccessor arrayExtractor = PatternBuilder.getFieldReadAccessor( context, queryDescr, argsObjectType, "elements", null, true );

        String[] params = queryDescr.getParameters();
        String[] types = queryDescr.getParameterTypes();
        int i = 0;
       
        Declaration[] declarations = new Declaration[ params.length ];
       
        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] ) );
View Full Code Here
70
71
72
73
74
75
76
77
78
79
80
     */
    public void build(final BuildContext context,
                      final BuildUtils utils,
                      final RuleConditionElement rce) {

        final Pattern pattern = (Pattern) rce;

        context.setLastBuiltPattern( pattern );
       
        context.pushRuleComponent( pattern );
        this.attachPattern( context,
View Full Code Here
269
270
271
272
273
274
275
276
277
278
279
     * @param subrule
     */
    private void addInitialFactPattern( final GroupElement subrule ) {

        // creates a pattern for initial fact
        final Pattern pattern = new Pattern( 0,
                                             ClassObjectType.InitialFact_ObjectType );

        // adds the pattern as the first child of the given AND group element
        subrule.addChild( 0,
                          pattern );
View Full Code Here
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
                                    final BaseDescr descr,
                                    final Pattern prefixPattern) {

        final CollectDescr collectDescr = (CollectDescr) descr;
        final PatternBuilder patternBuilder = (PatternBuilder) context.getDialect().getBuilder( PatternDescr.class );
        final Pattern sourcePattern = (Pattern) patternBuilder.build( context,
                                                                      collectDescr.getInputPattern() );

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

        final String className = "collect" + context.getNextId();
        collectDescr.setClassMethodName( className );
       
        Pattern resultPattern = (Pattern) context.getBuildStack().peek();

        final Collect collect = new Collect( sourcePattern,
                                             resultPattern );
        return collect;
    }
View Full Code Here
104
105
106
107
108
109
110
111
112
113
114
            if ( pkg != null ) {
                Class<?> cls = this.map.get( identifier );
                ClassObjectType classObjectType = new ClassObjectType( cls );

                Declaration declaration;
                final Pattern dummy = new Pattern( 0,
                                                   classObjectType );

                GlobalExtractor globalExtractor = new GlobalExtractor( identifier,
                                                                       classObjectType );
                declaration = new Declaration( identifier,
View Full Code Here
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
    private Pattern findPatternInNestedElements(final int index,
                                                final RuleConditionElement rce) {
        for ( RuleConditionElement element : rce.getNestedElements() ) {
            if ( element instanceof Pattern ) {
                Pattern p = (Pattern) element;
                if ( p.getIndex() == index ) {
                    return p;
                }
            } else if ( !element.isPatternScopeDelimiter() ) {
                Pattern p = findPatternInNestedElements( index,
                                                         element );
                if ( p != null ) {
                    return p;
                }
            }
View Full Code Here
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
            // BetaNode's not after LIANode are not relevant for left mask property specific, so don't block anything.
            leftDeclaredMask = Long.MAX_VALUE;
            return;
        }

        Pattern pattern = context.getLastBuiltPatterns()[1]; // left input pattern

        ObjectType objectType;
        if (pattern == null || this.getType() == NodeTypeEnums.AccumulateNode) {
            ObjectSource objectSource = ((LeftInputAdapterNode)leftInput).getParentObjectSource();
            if ( objectSource.getType() != NodeTypeEnums.ObjectTypeNode) {
                leftDeclaredMask = Long.MAX_VALUE;
                return;
            }
            objectType = ((ObjectTypeNode) objectSource).getObjectType();
        } else {
            objectType = pattern.getObjectType();
        }

        if ( !(objectType instanceof ClassObjectType) ) {
            // Only ClassObjectType can use property specific
            leftDeclaredMask = Long.MAX_VALUE;
            return;
        }

        Class objectClass = ((ClassWireable) objectType).getClassType();
        if ( isPropertyReactive(context, objectClass) ) {
            // TODO: at the moment if pattern is null (e.g. for eval node) we cannot calculate the mask, so we leave it to 0
            if ( pattern != null ) {
                List<String> leftListenedProperties = pattern.getListenedProperties();
                List<String> settableProperties = getSettableProperties( context.getRuleBase(), objectClass );
                leftDeclaredMask = calculatePositiveMask( leftListenedProperties, settableProperties );
                leftNegativeMask = calculateNegativeMask( leftListenedProperties, settableProperties );
                setLeftListenedProperties(leftListenedProperties);
            }
View Full Code Here
67
68
69
70
71
72
73
74
75
76
77
        List<Declaration> requiredDeclarations = new ArrayList<Declaration>();

        ObjectType argsObjectType = ClassObjectType.ObjectArray_ObjectType;
        InternalReadAccessor arrayReader = new SelfReferenceClassFieldReader( Object[].class,
                                                                              "this" );
        Pattern pattern = new Pattern( context.getNextPatternId(),
                                       0,
                                       argsObjectType,
                                       null );

        // Deal with the constraints, both positional and bindings
View Full Code Here
TOP

Related Classes of org.drools.rule.Pattern

  • com.envoisolutions.sxc.drools.DroolsXPathEvaluatorFactory
  • org.drools.common.BaseBetaConstraintsTest
  • org.drools.compiler.PackageBuilder
  • org.drools.compiler.PackageBuilderTest
  • org.drools.event.AgendaEventSupportTest
  • org.drools.event.knowledgebase.KnowledgeBaseEventSupportTest
  • org.drools.event.rule.AgendaEventSupportTest
  • org.drools.event.RuleBaseEventListenerTest
  • org.drools.event.RuleBaseEventSupportTest
  • org.drools.examples.manners.BaseMannersTest
    • 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.