com.espertech.esper.epl.core

Class SelectExprProcessorHelper

java.lang.Object

com.espertech.esper.epl.core.SelectExprProcessorHelper

public class SelectExprProcessorHelper
extends Object

Processor for select-clause expressions that handles a list of selection items represented by expression nodes. Computes results based on matching events.

Constructor Summary

Constructors

Constructor and Description

SelectExprProcessorHelper(Collection<Integer> assignedTypeNumberStack, List<SelectClauseExprCompiledSpec> selectionList, List<SelectExprStreamDesc> selectedStreams, InsertIntoDesc insertIntoDesc, EventType optionalInsertIntoOverrideType, boolean isUsingWildcard, StreamTypeService typeService, EventAdapterService eventAdapterService, ValueAddEventService valueAddEventService, SelectExprEventTypeRegistry selectExprEventTypeRegistry, EngineImportService engineImportService, int statementId, String statementName, Annotation[] annotations, ConfigurationInformation configuration, NamedWindowMgmtService namedWindowMgmtService, TableService tableService, com.espertech.esper.epl.core.GroupByRollupInfo groupByRollupInfo)

Method Summary

Modifier and Type	Method and Description
protected static void	applyWideners(Object[][] rows, TypeWidener[] wideners)
protected static void	applyWideners(Object[] row, TypeWidener[] wideners)
protected static CodegenExpression	applyWidenersCodegen(CodegenExpressionRef row, TypeWidener[] wideners, CodegenContext context)
protected static CodegenExpression	applyWidenersCodegenMultirow(CodegenExpressionRef rows, TypeWidener[] wideners, CodegenContext context)
SelectExprProcessor	getEvaluator()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SelectExprProcessorHelper

public SelectExprProcessorHelper(Collection<Integer> assignedTypeNumberStack,
                                 List<SelectClauseExprCompiledSpec> selectionList,
                                 List<SelectExprStreamDesc> selectedStreams,
                                 InsertIntoDesc insertIntoDesc,
                                 EventType optionalInsertIntoOverrideType,
                                 boolean isUsingWildcard,
                                 StreamTypeService typeService,
                                 EventAdapterService eventAdapterService,
                                 ValueAddEventService valueAddEventService,
                                 SelectExprEventTypeRegistry selectExprEventTypeRegistry,
                                 EngineImportService engineImportService,
                                 int statementId,
                                 String statementName,
                                 Annotation[] annotations,
                                 ConfigurationInformation configuration,
                                 NamedWindowMgmtService namedWindowMgmtService,
                                 TableService tableService,
                                 com.espertech.esper.epl.core.GroupByRollupInfo groupByRollupInfo)
                          throws ExprValidationException

Throws:

ExprValidationException

Method Detail

getEvaluator

public SelectExprProcessor getEvaluator()
                                 throws ExprValidationException

Throws:

ExprValidationException

applyWideners

protected static void applyWideners(Object[] row,
                                    TypeWidener[] wideners)

applyWidenersCodegen

protected static CodegenExpression applyWidenersCodegen(CodegenExpressionRef row,
                                                        TypeWidener[] wideners,
                                                        CodegenContext context)

applyWideners

protected static void applyWideners(Object[][] rows,
                                    TypeWidener[] wideners)

applyWidenersCodegenMultirow

protected static CodegenExpression applyWidenersCodegenMultirow(CodegenExpressionRef rows,
                                                                TypeWidener[] wideners,
                                                                CodegenContext context)