Package com.espertech.esper.epl.spec

Examples of com.espertech.esper.epl.spec.SelectClauseStreamCompiledSpec

83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
            }

            // handle stream wildcards by outputting the stream underlying event
            else if (element instanceof SelectClauseStreamCompiledSpec)
            {
                final SelectClauseStreamCompiledSpec streamSpec = (SelectClauseStreamCompiledSpec) element;
                final Class returnType = typesPerStream[streamSpec.getStreamNumber()].getUnderlyingType();

                expressions.add(new ExprEvaluator() {

                    public Object evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext)
                    {
                        EventBean theEvent = eventsPerStream[streamSpec.getStreamNumber()];
                        if (theEvent != null)
                        {
                            return theEvent.getUnderlying();
                        }
                        else
                        {
                            return null;
                        }
                    }

                    public Class getType()
                    {
                        return returnType;
                    }

                });
                types.add(returnType);
                columnNames.add(streamNames[streamSpec.getStreamNumber()]);
            }

            // handle expressions
            else if (element instanceof SelectClauseExprCompiledSpec)
            {
View Full Code Here
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
            if((isUsingWildcard) || (!unnamedStreams.isEmpty()))
            {
                if (!unnamedStreams.isEmpty())
                {
                    if (unnamedStreams.get(0).getStreamSelected() != null) {
                        SelectClauseStreamCompiledSpec streamSpec = unnamedStreams.get(0).getStreamSelected();

                        // the tag.* syntax for :  select tag.* from pattern [tag = A]
                        underlyingStreamNumber = streamSpec.getStreamNumber();
                        if (streamSpec.isFragmentEvent())
                        {
                            EventType compositeMap = typeService.getEventTypes()[underlyingStreamNumber];
                            FragmentEventType fragment = compositeMap.getFragmentType(streamSpec.getStreamName());
                            underlyingEventType = fragment.getFragmentType();
                            underlyingIsFragmentEvent = true;
                        }
                        // the property.* syntax for :  select property.* from A
                        else if (streamSpec.isProperty())
                        {
                            String propertyName = streamSpec.getStreamName();
                            Class propertyType = streamSpec.getPropertyType();
                            int streamNumber = streamSpec.getStreamNumber();

                            if (JavaClassHelper.isJavaBuiltinDataType(streamSpec.getPropertyType()))
                            {
                                throw new ExprValidationException("The property wildcard syntax cannot be used on built-in types as returned by property '" + propertyName + "'");
                            }

                            // create or get an underlying type for that Class
View Full Code Here
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
            if((isUsingWildcard) || (!unnamedStreams.isEmpty()))
            {
                if (!unnamedStreams.isEmpty())
                {
                    if (unnamedStreams.get(0).getStreamSelected() != null) {
                        SelectClauseStreamCompiledSpec streamSpec = unnamedStreams.get(0).getStreamSelected();

                        // the tag.* syntax for :  select tag.* from pattern [tag = A]
                        underlyingStreamNumber = streamSpec.getStreamNumber();
                        if (streamSpec.isFragmentEvent())
                        {
                            EventType compositeMap = typeService.getEventTypes()[underlyingStreamNumber];
                            FragmentEventType fragment = compositeMap.getFragmentType(streamSpec.getStreamName());
                            underlyingEventType = fragment.getFragmentType();
                            underlyingIsFragmentEvent = true;
                        }
                        // the property.* syntax for :  select property.* from A
                        else if (streamSpec.isProperty())
                        {
                            String propertyName = streamSpec.getStreamName();
                            Class propertyType = streamSpec.getPropertyType();
                            int streamNumber = streamSpec.getStreamNumber();

                            if (JavaClassHelper.isJavaBuiltinDataType(streamSpec.getPropertyType()))
                            {
                                throw new ExprValidationException("The property wildcard syntax cannot be used on built-in types as returned by property '" + propertyName + "'");
                            }

                            // create or get an underlying type for that Class
View Full Code Here
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
            }

            // handle stream wildcards by outputting the stream underlying event
            else if (element instanceof SelectClauseStreamCompiledSpec)
            {
                final SelectClauseStreamCompiledSpec streamSpec = (SelectClauseStreamCompiledSpec) element;
                final Class returnType = typesPerStream[streamSpec.getStreamNumber()].getUnderlyingType();

                expressions.add(new ExprEvaluator() {

                    public Object evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext)
                    {
                        EventBean theEvent = eventsPerStream[streamSpec.getStreamNumber()];
                        if (theEvent != null)
                        {
                            return theEvent.getUnderlying();
                        }
                        else
                        {
                            return null;
                        }
                    }

                    public Class getType()
                    {
                        return returnType;
                    }

                    public Map<String, Object> getEventType() {
                        return null;
                    }
                });
                types.add(returnType);
                columnNames.add(streamNames[streamSpec.getStreamNumber()]);
            }

            // handle expressions
            else if (element instanceof SelectClauseExprCompiledSpec)
            {
View Full Code Here
TOP

Related Classes of com.espertech.esper.epl.spec.SelectClauseStreamCompiledSpec

  • com.espertech.esper.epl.core.BindProcessor
  • com.espertech.esper.epl.core.SelectExprProcessorHelper
    • 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.