com.espertech.esper.type
Class CronParameter

java.lang.Object
  extended by com.espertech.esper.type.CronParameter
All Implemented Interfaces:
EPLParameterType, NumberSetParameter, MetaDefItem, Serializable

public class CronParameter
extends Object
implements NumberSetParameter

Hold parameters for timer:at.

See Also:
Serialized Form

Nested Class Summary
static class CronParameter.CronOperator
          Enumeration for special keywords in crontab timer.
 
Constructor Summary
CronParameter(int cronOperator, String day, long engineTime)
          Ctor.
 
Method Summary
 Set<Integer> getValuesInRange(int min, int max)
          Return a set of int values representing the value of the parameter for the given range.
 boolean isWildcard(int min, int max)
          Returns true if all values between and including min and max are supplied by the parameter.
 void setMonth(int month)
          Sets the month value.
 void toEPL(StringWriter writer)
          Returns the EPL representation of the parameter.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

CronParameter

public CronParameter(int cronOperator,
                     String day,
                     long engineTime)
Ctor.

Parameters:
cronOperator - is the operator as text
day - is the day text
engineTime - is the current engine time
Method Detail

toEPL

public void toEPL(StringWriter writer)
Description copied from interface: EPLParameterType
Returns the EPL representation of the parameter.

Specified by:
toEPL in interface EPLParameterType
Specified by:
toEPL in interface NumberSetParameter
Parameters:
writer - for output to

setMonth

public void setMonth(int month)
Sets the month value.

Parameters:
month - to set

isWildcard

public boolean isWildcard(int min,
                          int max)
Description copied from interface: NumberSetParameter
Returns true if all values between and including min and max are supplied by the parameter.

Specified by:
isWildcard in interface NumberSetParameter
Parameters:
min - - lower end of range
max - - upper end of range
Returns:
true if parameter specifies all int values between min and max, false if not

getValuesInRange

public Set<Integer> getValuesInRange(int min,
                                     int max)
Description copied from interface: NumberSetParameter
Return a set of int values representing the value of the parameter for the given range.

Specified by:
getValuesInRange in interface NumberSetParameter
Parameters:
min - - lower end of range
max - - upper end of range
Returns:
set of integer

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