com.espertech.esper.common.internal.epl.expression.table

Class ExprTableIdentNodeSubpropAccessor

java.lang.Object

com.espertech.esper.common.internal.epl.expression.core.ExprNodeBase

com.espertech.esper.common.internal.epl.expression.table.ExprTableIdentNodeSubpropAccessor

All Implemented Interfaces:

ExprEnumerationEval, ExprEnumerationForge, ExprEvaluator, ExprForge, ExprForgeInstrumentable, ExprNode, ExprNodeRenderable, ExprValidator, Serializable

public class ExprTableIdentNodeSubpropAccessor
extends ExprNodeBase
implements ExprForgeInstrumentable, ExprEvaluator, ExprEnumerationForge, ExprEnumerationEval

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ExprTableIdentNodeSubpropAccessor(int streamNum, String optionalStreamName, TableMetaData table, TableMetadataColumnAggregation tableAccessColumn, ExprNode aggregateAccessMultiValueNode)

Method Summary

Modifier and Type	Method and Description
boolean	equalsNode(ExprNode node, boolean ignoreStreamPrefix) Return true if a expression node semantically equals the current node, or false if not.
Object	evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext) Evaluate event tuple and return result.
CodegenExpression	evaluateCodegen(Class requiredType, CodegenMethodScope parent, ExprForgeCodegenSymbol symbols, CodegenClassScope classScope)
CodegenExpression	evaluateCodegenUninstrumented(Class requiredType, CodegenMethodScope parent, ExprForgeCodegenSymbol symbols, CodegenClassScope classScope)
EventBean	evaluateGetEventBean(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context)
CodegenExpression	evaluateGetEventBeanCodegen(CodegenMethodScope codegenMethodScope, ExprForgeCodegenSymbol exprSymbol, CodegenClassScope codegenClassScope)
Collection<EventBean>	evaluateGetROCollectionEvents(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context)
CodegenExpression	evaluateGetROCollectionEventsCodegen(CodegenMethodScope parent, ExprForgeCodegenSymbol symbols, CodegenClassScope classScope)
Collection	evaluateGetROCollectionScalar(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context)
CodegenExpression	evaluateGetROCollectionScalarCodegen(CodegenMethodScope parent, ExprForgeCodegenSymbol symbols, CodegenClassScope classScope)
static Object	evaluateTableWithReader(int streamNum, AggregationMultiFunctionTableReader reader, int aggColNum, EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext) NOTE: Code-generation-invoked method, method name and parameter order matters
static Collection	evaluateTableWithReaderCollectionEvents(int streamNum, AggregationMultiFunctionTableReader reader, int aggColNum, EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext) NOTE: Code-generation-invoked method, method name and parameter order matters
static Collection	evaluateTableWithReaderCollectionScalar(int streamNum, AggregationMultiFunctionTableReader reader, int aggColNum, EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext) NOTE: Code-generation-invoked method, method name and parameter order matters
Class	getComponentTypeCollection()
Class	getEvaluationType()
EventType	getEventTypeCollection(StatementRawInfo statementRawInfo, StatementCompileTimeServices compileTimeServices)
EventType	getEventTypeSingle(StatementRawInfo statementRawInfo, StatementCompileTimeServices compileTimeServices)
ExprEvaluator	getExprEvaluator()
ExprEnumerationEval	getExprEvaluatorEnumeration()
ExprForge	getForge()
ExprForgeConstantType	getForgeConstantType()
ExprNodeRenderable	getForgeRenderable()
ExprPrecedenceEnum	getPrecedence() Returns precedence.
boolean	isConstantResult()
void	toPrecedenceFreeEPL(StringWriter writer)
ExprNode	validate(ExprValidationContext validationContext)

Methods inherited from class com.espertech.esper.common.internal.epl.expression.core.ExprNodeBase

accept, accept, acceptChildnodes, addChildNode, addChildNodes, addChildNodeToFront, checkValidated, checkValidatedException, getChildNodes, replaceUnlistedChildNode, setChildNode, setChildNodes, toEPL

Methods inherited from class java.lang.Object

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

Constructor Detail

ExprTableIdentNodeSubpropAccessor

public ExprTableIdentNodeSubpropAccessor(int streamNum,
                                         String optionalStreamName,
                                         TableMetaData table,
                                         TableMetadataColumnAggregation tableAccessColumn,
                                         ExprNode aggregateAccessMultiValueNode)

Method Detail

validate

public ExprNode validate(ExprValidationContext validationContext)
                  throws ExprValidationException

Specified by:

validate in interface ExprValidator

Throws:

ExprValidationException

evaluateCodegenUninstrumented

public CodegenExpression evaluateCodegenUninstrumented(Class requiredType,
                                                       CodegenMethodScope parent,
                                                       ExprForgeCodegenSymbol symbols,
                                                       CodegenClassScope classScope)

Specified by:

evaluateCodegenUninstrumented in interface ExprForgeInstrumentable

evaluateCodegen

public CodegenExpression evaluateCodegen(Class requiredType,
                                         CodegenMethodScope parent,
                                         ExprForgeCodegenSymbol symbols,
                                         CodegenClassScope classScope)

Specified by:

evaluateCodegen in interface ExprForge

getEvaluationType

public Class getEvaluationType()

Specified by:

getEvaluationType in interface ExprForge

getForge

public ExprForge getForge()

Specified by:

getForge in interface ExprNode

getForgeRenderable

public ExprNodeRenderable getForgeRenderable()

Specified by:

getForgeRenderable in interface ExprEnumerationForge

Specified by:

getForgeRenderable in interface ExprForge

getExprEvaluator

public ExprEvaluator getExprEvaluator()

Specified by:

getExprEvaluator in interface ExprForge

getExprEvaluatorEnumeration

public ExprEnumerationEval getExprEvaluatorEnumeration()

Specified by:

getExprEvaluatorEnumeration in interface ExprEnumerationForge

evaluateGetROCollectionEventsCodegen

public CodegenExpression evaluateGetROCollectionEventsCodegen(CodegenMethodScope parent,
                                                              ExprForgeCodegenSymbol symbols,
                                                              CodegenClassScope classScope)

Specified by:

evaluateGetROCollectionEventsCodegen in interface ExprEnumerationForge

evaluate

public Object evaluate(EventBean[] eventsPerStream,
                       boolean isNewData,
                       ExprEvaluatorContext exprEvaluatorContext)

Description copied from interface: ExprEvaluator

Evaluate event tuple and return result.

Specified by:

evaluate in interface ExprEvaluator

Parameters:

eventsPerStream - - event tuple

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

exprEvaluatorContext - context for expression evaluation

Returns:

evaluation result, a boolean value for OR/AND-type evalution nodes.

getEventTypeCollection

public EventType getEventTypeCollection(StatementRawInfo statementRawInfo,
                                        StatementCompileTimeServices compileTimeServices)
                                 throws ExprValidationException

Specified by:

getEventTypeCollection in interface ExprEnumerationForge

Throws:

ExprValidationException

evaluateGetROCollectionEvents

public Collection<EventBean> evaluateGetROCollectionEvents(EventBean[] eventsPerStream,
                                                           boolean isNewData,
                                                           ExprEvaluatorContext context)

Specified by:

evaluateGetROCollectionEvents in interface ExprEnumerationEval

getComponentTypeCollection

public Class getComponentTypeCollection()
                                 throws ExprValidationException

Specified by:

getComponentTypeCollection in interface ExprEnumerationForge

Throws:

ExprValidationException

evaluateGetROCollectionScalar

public Collection evaluateGetROCollectionScalar(EventBean[] eventsPerStream,
                                                boolean isNewData,
                                                ExprEvaluatorContext context)

Specified by:

evaluateGetROCollectionScalar in interface ExprEnumerationEval

evaluateGetROCollectionScalarCodegen

public CodegenExpression evaluateGetROCollectionScalarCodegen(CodegenMethodScope parent,
                                                              ExprForgeCodegenSymbol symbols,
                                                              CodegenClassScope classScope)

Specified by:

evaluateGetROCollectionScalarCodegen in interface ExprEnumerationForge

getEventTypeSingle

public EventType getEventTypeSingle(StatementRawInfo statementRawInfo,
                                    StatementCompileTimeServices compileTimeServices)
                             throws ExprValidationException

Specified by:

getEventTypeSingle in interface ExprEnumerationForge

Throws:

ExprValidationException

evaluateGetEventBean

public EventBean evaluateGetEventBean(EventBean[] eventsPerStream,
                                      boolean isNewData,
                                      ExprEvaluatorContext context)

Specified by:

evaluateGetEventBean in interface ExprEnumerationEval

evaluateGetEventBeanCodegen

public CodegenExpression evaluateGetEventBeanCodegen(CodegenMethodScope codegenMethodScope,
                                                     ExprForgeCodegenSymbol exprSymbol,
                                                     CodegenClassScope codegenClassScope)

Specified by:

evaluateGetEventBeanCodegen in interface ExprEnumerationForge

toPrecedenceFreeEPL

public void toPrecedenceFreeEPL(StringWriter writer)

Specified by:

toPrecedenceFreeEPL in class ExprNodeBase

getPrecedence

public ExprPrecedenceEnum getPrecedence()

Description copied from interface: ExprNode

Returns precedence.

Specified by:

getPrecedence in interface ExprNode

Returns:

precedence

isConstantResult

public boolean isConstantResult()

equalsNode

public boolean equalsNode(ExprNode node,
                          boolean ignoreStreamPrefix)

Description copied from interface: ExprNode

Return true if a expression node semantically equals the current node, or false if not.

Concrete implementations should compare the type and any additional information that impact the evaluation of a node.

Specified by:

equalsNode in interface ExprNode

Parameters:

node - to compare to

ignoreStreamPrefix - when the equals-comparison can ignore prefix of event properties

Returns:

true if semantically equal, or false if not equals

getForgeConstantType

public ExprForgeConstantType getForgeConstantType()

Specified by:

getForgeConstantType in interface ExprForge

evaluateTableWithReader

public static Object evaluateTableWithReader(int streamNum,
                                             AggregationMultiFunctionTableReader reader,
                                             int aggColNum,
                                             EventBean[] eventsPerStream,
                                             boolean isNewData,
                                             ExprEvaluatorContext exprEvaluatorContext)

NOTE: Code-generation-invoked method, method name and parameter order matters

Parameters:

streamNum - stream number

reader - reader

aggColNum - agg col

eventsPerStream - events

isNewData - new-data flag

exprEvaluatorContext - expr ctx

Returns:

value

evaluateTableWithReaderCollectionEvents

public static Collection evaluateTableWithReaderCollectionEvents(int streamNum,
                                                                 AggregationMultiFunctionTableReader reader,
                                                                 int aggColNum,
                                                                 EventBean[] eventsPerStream,
                                                                 boolean isNewData,
                                                                 ExprEvaluatorContext exprEvaluatorContext)

NOTE: Code-generation-invoked method, method name and parameter order matters

Parameters:

streamNum - stream number

reader - reader

aggColNum - agg col

eventsPerStream - events

isNewData - new-data flag

exprEvaluatorContext - expr ctx

Returns:

value

evaluateTableWithReaderCollectionScalar

public static Collection evaluateTableWithReaderCollectionScalar(int streamNum,
                                                                 AggregationMultiFunctionTableReader reader,
                                                                 int aggColNum,
                                                                 EventBean[] eventsPerStream,
                                                                 boolean isNewData,
                                                                 ExprEvaluatorContext exprEvaluatorContext)

NOTE: Code-generation-invoked method, method name and parameter order matters

Parameters:

streamNum - stream number

reader - reader

aggColNum - agg col

eventsPerStream - events

isNewData - new-data flag

exprEvaluatorContext - expr ctx

Returns:

value