com.espertech.esper.epl.expression.table
Class ExprTableAccessNodeSubprop

java.lang.Object
  com.espertech.esper.epl.expression.core.ExprNodeBase
      com.espertech.esper.epl.expression.table.ExprTableAccessNode
          com.espertech.esper.epl.expression.table.ExprTableAccessNodeSubprop

All Implemented Interfaces:

ExprEvaluator, ExprEvaluatorEnumeration, ExprNode, ExprValidator, MetaDefItem, java.io.Serializable

public class ExprTableAccessNodeSubprop
extends ExprTableAccessNode
implements ExprEvaluator, ExprEvaluatorEnumeration

See Also:

Serialized Form

Field Summary

Fields inherited from class com.espertech.esper.epl.expression.table.ExprTableAccessNode

groupKeyEvaluators, strategy, tableName

Constructor Summary

ExprTableAccessNodeSubprop(java.lang.String tableName, java.lang.String subpropName)
Ctor.

Method Summary

protected boolean	equalsNodeInternal(ExprTableAccessNode other)
java.lang.Object	evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext) Evaluate event tuple and return result.
EventBean	evaluateGetEventBean(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context)
java.util.Collection<EventBean>	evaluateGetROCollectionEvents(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context)
java.util.Collection	evaluateGetROCollectionScalar(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context)
java.lang.Class	getComponentTypeCollection()
EventType	getEventTypeCollection(EventAdapterService eventAdapterService, java.lang.String statementId)
EventType	getEventTypeSingle(EventAdapterService eventAdapterService, java.lang.String statementId)
ExprEvaluator	getExprEvaluator()
ExprEvaluatorEnumerationGivenEvent	getOptionalPropertyEnumEvaluator()
java.lang.String	getSubpropName()
java.lang.Class	getType() Returns the type that the node's evaluate method returns an instance of.
void	toPrecedenceFreeEPL(java.io.StringWriter writer)
protected void	validateBindingInternal(ExprValidationContext validationContext, TableMetadata tableMetadata)

Methods inherited from class com.espertech.esper.epl.expression.table.ExprTableAccessNode

equalsNode, getGroupKeyEvaluators, getPrecedence, getTableName, hashCode, isConstantResult, setStrategy, toPrecedenceFreeEPLInternal, toPrecedenceFreeEPLInternal, validate, validateGroupKeys, validateSubpropertyGetCol

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

ExprTableAccessNodeSubprop

public ExprTableAccessNodeSubprop(java.lang.String tableName,
                                  java.lang.String subpropName)

Ctor.

Method Detail

getExprEvaluator

public ExprEvaluator getExprEvaluator()

Specified by:

getExprEvaluator in interface ExprNode

validateBindingInternal

protected void validateBindingInternal(ExprValidationContext validationContext,
                                       TableMetadata tableMetadata)
                                throws ExprValidationException

Specified by:

validateBindingInternal in class ExprTableAccessNode

Throws:

ExprValidationException

getType

public java.lang.Class getType()

Description copied from interface: ExprEvaluator

Returns the type that the node's evaluate method returns an instance of.

Specified by:

getType in interface ExprEvaluator

Returns:

type returned when evaluated

evaluate

public java.lang.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.

toPrecedenceFreeEPL

public void toPrecedenceFreeEPL(java.io.StringWriter writer)

Specified by:

toPrecedenceFreeEPL in class ExprNodeBase

getSubpropName

public java.lang.String getSubpropName()

getEventTypeCollection

public EventType getEventTypeCollection(EventAdapterService eventAdapterService,
                                        java.lang.String statementId)
                                 throws ExprValidationException

Specified by:

getEventTypeCollection in interface ExprEvaluatorEnumeration

Throws:

ExprValidationException

evaluateGetROCollectionEvents

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

Specified by:

evaluateGetROCollectionEvents in interface ExprEvaluatorEnumeration

getComponentTypeCollection

public java.lang.Class getComponentTypeCollection()
                                           throws ExprValidationException

Specified by:

getComponentTypeCollection in interface ExprEvaluatorEnumeration

Throws:

ExprValidationException

evaluateGetROCollectionScalar

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

Specified by:

evaluateGetROCollectionScalar in interface ExprEvaluatorEnumeration

getEventTypeSingle

public EventType getEventTypeSingle(EventAdapterService eventAdapterService,
                                    java.lang.String statementId)
                             throws ExprValidationException

Specified by:

getEventTypeSingle in interface ExprEvaluatorEnumeration

Throws:

ExprValidationException

evaluateGetEventBean

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

Specified by:

evaluateGetEventBean in interface ExprEvaluatorEnumeration

getOptionalPropertyEnumEvaluator

public ExprEvaluatorEnumerationGivenEvent getOptionalPropertyEnumEvaluator()

equalsNodeInternal

protected boolean equalsNodeInternal(ExprTableAccessNode other)

Specified by:

equalsNodeInternal in class ExprTableAccessNode