Package com.espertech.esper.common.internal.epl.expression.agg.accessagg

Class ExprAggMultiFunctionLinearAccessNode

java.lang.Object

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

com.espertech.esper.common.internal.epl.expression.agg.base.ExprAggregateNodeBase

com.espertech.esper.common.internal.epl.expression.agg.accessagg.ExprAggMultiFunctionLinearAccessNode

All Implemented Interfaces:

ExprAggMultiFunctionNode, ExprAggregateNode, ExprEnumerationForge, ExprEvaluator, ExprForge, ExprForgeInstrumentable, ExprNode, ExprNodeRenderable, ExprValidator

public class ExprAggMultiFunctionLinearAccessNode
extends ExprAggregateNodeBase
implements ExprEnumerationForge, ExprAggMultiFunctionNode

Field Summary

Fields inherited from class com.espertech.esper.common.internal.epl.expression.agg.base.ExprAggregateNodeBase

aggregationResultFutureMemberName, column, isDistinct, optionalAggregateLocalGroupByDesc, optionalFilter, positionalParams

Fields inherited from interface com.espertech.esper.common.internal.epl.expression.core.ExprEvaluator

EPTYPE, EPTYPEARRAY

Constructor Summary

Constructors

Constructor	Description
ExprAggMultiFunctionLinearAccessNode(AggregationAccessorLinearType stateType)

Method Summary

Modifier and Type	Method	Description
protected boolean	equalsNodeAggregateMethodOnly(ExprAggregateNode node)	Return true if a expression aggregate node semantically equals the current node, or false if not.
CodegenExpression	evaluateGetEventBeanCodegen(CodegenMethodScope parent, ExprForgeCodegenSymbol exprSymbol, CodegenClassScope codegenClassScope)
CodegenExpression	evaluateGetROCollectionEventsCodegen(CodegenMethodScope parent, ExprForgeCodegenSymbol exprSymbol, CodegenClassScope codegenClassScope)
CodegenExpression	evaluateGetROCollectionScalarCodegen(CodegenMethodScope parent, ExprForgeCodegenSymbol exprSymbol, CodegenClassScope codegenClassScope)
AggregationForgeFactory	getAggregationForgeFactory()
String	getAggregationFunctionName()	Returns the aggregation function name for representation in a generate expression string.
EPTypeClass	getComponentTypeCollection()
EventType	getEventTypeCollection(StatementRawInfo statementRawInfo, StatementCompileTimeServices compileTimeServices)
EventType	getEventTypeSingle(StatementRawInfo statementRawInfo, StatementCompileTimeServices compileTimeServices)
ExprEnumerationEval	getExprEvaluatorEnumeration()
protected static boolean	getIstreamOnly(StreamTypeService streamTypeService, int streamNum)
AggregationAccessorLinearType	getStateType()
EventType	getStreamType()
protected boolean	isFilterExpressionAsLastParameter()
void	toPrecedenceFreeEPL(StringWriter writer, ExprNodeRenderableFlags flags)
AggregationForgeFactory	validateAggregationChild(ExprValidationContext validationContext)	Gives the aggregation node a chance to validate the sub-expression types.

Methods inherited from class com.espertech.esper.common.internal.epl.expression.agg.base.ExprAggregateNodeBase

equalsNode, evaluate, evaluateCodegen, evaluateCodegenUninstrumented, getAggFuture, getColumn, getEvaluationType, getExprEvaluator, getFactory, getForge, getForgeConstantType, getForgeRenderable, getOptionalFilter, getOptionalLocalGroupBy, getPositionalParams, getPrecedence, isConstantResult, isDistinct, isExprTextWildcardWhenNoParams, makeExceptionExpectedParamNum, setColumn, validate, validateFilter, validateNumericChildAllowFilter, validatePositionals

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

Methods inherited from interface com.espertech.esper.common.internal.epl.expression.agg.accessagg.ExprAggMultiFunctionNode

getAggFuture, getColumn

Methods inherited from interface com.espertech.esper.common.internal.epl.expression.core.ExprEnumerationForge

getForgeRenderable

Methods inherited from interface com.espertech.esper.common.internal.epl.expression.core.ExprNode

accept, accept, acceptChildnodes, addChildNode, addChildNodes, equalsNode, getChildNodes, getForge, getPrecedence, replaceUnlistedChildNode, setChildNode, setChildNodes

Methods inherited from interface com.espertech.esper.common.internal.epl.expression.core.ExprNodeRenderable

toEPL

Methods inherited from interface com.espertech.esper.common.internal.epl.expression.core.ExprValidator

validate

Constructor Details

ExprAggMultiFunctionLinearAccessNode

public ExprAggMultiFunctionLinearAccessNode(AggregationAccessorLinearType stateType)

Method Details

validateAggregationChild

public AggregationForgeFactory validateAggregationChild(ExprValidationContext validationContext)
                                                 throws ExprValidationException

Description copied from class: ExprAggregateNodeBase

Gives the aggregation node a chance to validate the sub-expression types.

Specified by:

validateAggregationChild in class ExprAggregateNodeBase

Parameters:

validationContext - validation information

Returns:

aggregation function factory to use

Throws:

ExprValidationException - when expression validation failed

getAggregationForgeFactory

public AggregationForgeFactory getAggregationForgeFactory()

Specified by:

getAggregationForgeFactory in interface ExprAggMultiFunctionNode

getExprEvaluatorEnumeration

public ExprEnumerationEval getExprEvaluatorEnumeration()

Specified by:

getExprEvaluatorEnumeration in interface ExprEnumerationForge

evaluateGetROCollectionScalarCodegen

public CodegenExpression evaluateGetROCollectionScalarCodegen(CodegenMethodScope parent,
 ExprForgeCodegenSymbol exprSymbol,
 CodegenClassScope codegenClassScope)

Specified by:

evaluateGetROCollectionScalarCodegen in interface ExprEnumerationForge

evaluateGetEventBeanCodegen

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

Specified by:

evaluateGetEventBeanCodegen in interface ExprEnumerationForge

evaluateGetROCollectionEventsCodegen

public CodegenExpression evaluateGetROCollectionEventsCodegen(CodegenMethodScope parent,
 ExprForgeCodegenSymbol exprSymbol,
 CodegenClassScope codegenClassScope)

Specified by:

evaluateGetROCollectionEventsCodegen in interface ExprEnumerationForge

getIstreamOnly

protected static boolean getIstreamOnly(StreamTypeService streamTypeService,
 int streamNum)

getAggregationFunctionName

public String getAggregationFunctionName()

Description copied from class: ExprAggregateNodeBase

Returns the aggregation function name for representation in a generate expression string.

Specified by:

getAggregationFunctionName in class ExprAggregateNodeBase

Returns:

aggregation function name

toPrecedenceFreeEPL

public void toPrecedenceFreeEPL(StringWriter writer,
 ExprNodeRenderableFlags flags)

Overrides:

toPrecedenceFreeEPL in class ExprAggregateNodeBase

getStateType

public AggregationAccessorLinearType getStateType()

getEventTypeCollection

public EventType getEventTypeCollection(StatementRawInfo statementRawInfo,
 StatementCompileTimeServices compileTimeServices)

Specified by:

getEventTypeCollection in interface ExprEnumerationForge

getComponentTypeCollection

public EPTypeClass getComponentTypeCollection()

Specified by:

getComponentTypeCollection in interface ExprEnumerationForge

getEventTypeSingle

public EventType getEventTypeSingle(StatementRawInfo statementRawInfo,
 StatementCompileTimeServices compileTimeServices)

Specified by:

getEventTypeSingle in interface ExprEnumerationForge

equalsNodeAggregateMethodOnly

protected boolean equalsNodeAggregateMethodOnly(ExprAggregateNode node)

Description copied from class: ExprAggregateNodeBase

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

For use by the equalsNode implementation which compares the distinct flag.

Specified by:

equalsNodeAggregateMethodOnly in class ExprAggregateNodeBase

Parameters:

node - to compare to

Returns:

true if semantically equal, or false if not equals

isFilterExpressionAsLastParameter

protected boolean isFilterExpressionAsLastParameter()

Specified by:

isFilterExpressionAsLastParameter in class ExprAggregateNodeBase

getStreamType

public EventType getStreamType()