com.espertech.esper.epl.core.select.eval

Class EvalSelectStreamBaseObjectArray

java.lang.Object

com.espertech.esper.epl.core.select.eval.EvalSelectStreamBase

com.espertech.esper.epl.core.select.eval.EvalSelectStreamBaseObjectArray

All Implemented Interfaces:

SelectExprProcessor, SelectExprProcessorForge

Direct Known Subclasses:

EvalSelectStreamNoUnderlyingObjectArray, EvalSelectStreamNoUndWEventBeanToObjObjArray

public abstract class EvalSelectStreamBaseObjectArray
extends EvalSelectStreamBase
implements SelectExprProcessor

Field Summary

Fields inherited from class com.espertech.esper.epl.core.select.eval.EvalSelectStreamBase

context, evaluators, isUsingWildcard, namedStreams, resultEventType

Constructor Summary

Constructors

Constructor and Description
EvalSelectStreamBaseObjectArray(SelectExprForgeContext selectExprForgeContext, EventType resultEventType, java.util.List<SelectClauseStreamCompiledSpec> namedStreams, boolean usingWildcard)

Method Summary

Modifier and Type	Method and Description
EventBean	process(EventBean[] eventsPerStream, boolean isNewData, boolean isSynthesize, ExprEvaluatorContext exprEvaluatorContext) Computes the select-clause results and returns an event of the result event type that contains, in it's properties, the selected items.
CodegenMethodNode	processCodegen(CodegenMember memberResultEventType, CodegenMember memberEventAdapterService, CodegenMethodScope codegenMethodScope, SelectExprProcessorCodegenSymbol selectSymbol, ExprForgeCodegenSymbol exprSymbol, CodegenClassScope codegenClassScope)
protected abstract EventBean	processSpecific(java.lang.Object[] props, EventBean[] eventsPerStream, ExprEvaluatorContext exprEvaluatorContext)
protected abstract CodegenExpression	processSpecificCodegen(CodegenMember memberResultEventType, CodegenMember memberEventAdapterService, CodegenExpressionRef props, CodegenClassScope codegenClassScope)

Methods inherited from class com.espertech.esper.epl.core.select.eval.EvalSelectStreamBase

getContext, getResultEventType, getSelectExprProcessor

Methods inherited from class java.lang.Object

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

Constructor Detail

EvalSelectStreamBaseObjectArray

public EvalSelectStreamBaseObjectArray(SelectExprForgeContext selectExprForgeContext,
                                       EventType resultEventType,
                                       java.util.List<SelectClauseStreamCompiledSpec> namedStreams,
                                       boolean usingWildcard)

Method Detail

processSpecific

protected abstract EventBean processSpecific(java.lang.Object[] props,
                                             EventBean[] eventsPerStream,
                                             ExprEvaluatorContext exprEvaluatorContext)

processSpecificCodegen

protected abstract CodegenExpression processSpecificCodegen(CodegenMember memberResultEventType,
                                                            CodegenMember memberEventAdapterService,
                                                            CodegenExpressionRef props,
                                                            CodegenClassScope codegenClassScope)

process

public EventBean process(EventBean[] eventsPerStream,
                         boolean isNewData,
                         boolean isSynthesize,
                         ExprEvaluatorContext exprEvaluatorContext)

Description copied from interface: SelectExprProcessor

Computes the select-clause results and returns an event of the result event type that contains, in it's properties, the selected items.

Specified by:

process in interface SelectExprProcessor

Parameters:

eventsPerStream - - is per stream the event

isNewData - - indicates whether we are dealing with new data (istream) or old data (rstream)

isSynthesize - - set to true to indicate that synthetic events are required for an iterator result set

exprEvaluatorContext - context

Returns:

event with properties containing selected items

processCodegen

public CodegenMethodNode processCodegen(CodegenMember memberResultEventType,
                                        CodegenMember memberEventAdapterService,
                                        CodegenMethodScope codegenMethodScope,
                                        SelectExprProcessorCodegenSymbol selectSymbol,
                                        ExprForgeCodegenSymbol exprSymbol,
                                        CodegenClassScope codegenClassScope)

Specified by:

processCodegen in interface SelectExprProcessorForge