com.espertech.esper.epl.spec
Class OutputLimitSpec

java.lang.Object
  com.espertech.esper.epl.spec.OutputLimitSpec

All Implemented Interfaces:

MetaDefItem, java.io.Serializable

public class OutputLimitSpec
extends java.lang.Object
implements MetaDefItem, java.io.Serializable

Spec for defining an output rate

See Also:

Serialized Form

Constructor Summary

OutputLimitSpec(java.lang.Double rate, java.lang.String variableForRate, OutputLimitRateType rateType, OutputLimitLimitType displayLimit, ExprNode whenExpressionNode, java.util.List<OnTriggerSetAssignment> thenExpressions, java.util.List<ExprNode> crontabAtSchedule, ExprTimePeriod timePeriodExpr, ExprTimePeriod afterTimePeriodExpr, java.lang.Integer afterNumberOfEvents, boolean andAfterTerminate, ExprNode andAfterTerminateExpr, java.util.List<OnTriggerSetAssignment> andAfterTerminateSetExpressions)
Ctor.

OutputLimitSpec(OutputLimitLimitType displayLimit, OutputLimitRateType rateType)

Method Summary

java.lang.Integer	getAfterNumberOfEvents() Returns the after-keyword number of events.
ExprTimePeriod	getAfterTimePeriodExpr() Returns the after-keyword time period.
ExprNode	getAndAfterTerminateExpr()
java.util.List<OnTriggerSetAssignment>	getAndAfterTerminateThenExpressions()
java.util.List<ExprNode>	getCrontabAtSchedule() Returns crontab parameters, or null if not using crontab-at output.
OutputLimitLimitType	getDisplayLimit() Returns the type of output limit.
java.lang.Double	getRate() Returns the rate, or null or -1 if a variable is used instead
OutputLimitRateType	getRateType() Returns the type of rate.
java.util.List<OnTriggerSetAssignment>	getThenExpressions() Returns a list of variable assignments, or null if none made.
ExprTimePeriod	getTimePeriodExpr() Returns time period expression or null if none used.
java.lang.String	getVariableName() Returns the variable name if set, or null if a fixed rate
ExprNode	getWhenExpressionNode() Returns the when-keyword trigger expression, or null if not using when.
boolean	isAndAfterTerminate()
void	setAfterTimePeriodExpr(ExprTimePeriod afterTimePeriodExpr)
void	setAndAfterTerminateExpr(ExprNode andAfterTerminateExpr)
void	setAndAfterTerminateThenExpressions(java.util.List<OnTriggerSetAssignment> andAfterTerminateThenExpressions)
void	setTimePeriodExpr(ExprTimePeriod timePeriodExpr)
void	setWhenExpressionNode(ExprNode whenExpressionNode) Sets a new when-keyword trigger expression.

Methods inherited from class java.lang.Object

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

Constructor Detail

OutputLimitSpec

public OutputLimitSpec(java.lang.Double rate,
                       java.lang.String variableForRate,
                       OutputLimitRateType rateType,
                       OutputLimitLimitType displayLimit,
                       ExprNode whenExpressionNode,
                       java.util.List<OnTriggerSetAssignment> thenExpressions,
                       java.util.List<ExprNode> crontabAtSchedule,
                       ExprTimePeriod timePeriodExpr,
                       ExprTimePeriod afterTimePeriodExpr,
                       java.lang.Integer afterNumberOfEvents,
                       boolean andAfterTerminate,
                       ExprNode andAfterTerminateExpr,
                       java.util.List<OnTriggerSetAssignment> andAfterTerminateSetExpressions)

Ctor. For batching events by event count.

Parameters:

rate - is the fixed output rate, or null if by variable

displayLimit - - indicates whether to output only the first, only the last, or all events

variableForRate - - an optional variable name instead of the rate

rateType - - type of the rate

whenExpressionNode - - for controlling output by a boolean expression

thenExpressions - variable assignments, if null if none

crontabAtSchedule - - crontab parameters

timePeriodExpr - - the time period, or null if none

afterTimePeriodExpr - - after-keyword time period

afterNumberOfEvents - - after-keyword number of events

OutputLimitSpec

public OutputLimitSpec(OutputLimitLimitType displayLimit,
                       OutputLimitRateType rateType)

Method Detail

getDisplayLimit

public OutputLimitLimitType getDisplayLimit()

Returns the type of output limit.

Returns:

limit

getRateType

public OutputLimitRateType getRateType()

Returns the type of rate.

Returns:

rate type

getRate

public java.lang.Double getRate()

Returns the rate, or null or -1 if a variable is used instead

Returns:

rate if set

getVariableName

public java.lang.String getVariableName()

Returns the variable name if set, or null if a fixed rate

Returns:

variable name

getWhenExpressionNode

public ExprNode getWhenExpressionNode()

Returns the when-keyword trigger expression, or null if not using when.

Returns:

expression

getCrontabAtSchedule

public java.util.List<ExprNode> getCrontabAtSchedule()

Returns crontab parameters, or null if not using crontab-at output.

Returns:

schedule parameters

setWhenExpressionNode

public void setWhenExpressionNode(ExprNode whenExpressionNode)

Sets a new when-keyword trigger expression.

Parameters:

whenExpressionNode - to set

getThenExpressions

public java.util.List<OnTriggerSetAssignment> getThenExpressions()

Returns a list of variable assignments, or null if none made.

Returns:

variable assignments

getTimePeriodExpr

public ExprTimePeriod getTimePeriodExpr()

Returns time period expression or null if none used.

Returns:

time period

getAfterTimePeriodExpr

public ExprTimePeriod getAfterTimePeriodExpr()

Returns the after-keyword time period.

Returns:

after-keyword time period

getAfterNumberOfEvents

public java.lang.Integer getAfterNumberOfEvents()

Returns the after-keyword number of events.

Returns:

after-keyword number of events

getAndAfterTerminateExpr

public ExprNode getAndAfterTerminateExpr()

setAndAfterTerminateExpr

public void setAndAfterTerminateExpr(ExprNode andAfterTerminateExpr)

isAndAfterTerminate

public boolean isAndAfterTerminate()

getAndAfterTerminateThenExpressions

public java.util.List<OnTriggerSetAssignment> getAndAfterTerminateThenExpressions()

setAndAfterTerminateThenExpressions

public void setAndAfterTerminateThenExpressions(java.util.List<OnTriggerSetAssignment> andAfterTerminateThenExpressions)

setAfterTimePeriodExpr

public void setAfterTimePeriodExpr(ExprTimePeriod afterTimePeriodExpr)

setTimePeriodExpr

public void setTimePeriodExpr(ExprTimePeriod timePeriodExpr)