com.espertech.esper.filter

Class FilterSpecParamEventPropIndexed

java.lang.Object

com.espertech.esper.filter.FilterSpecParam

com.espertech.esper.filter.FilterSpecParamEventPropIndexed

All Implemented Interfaces:

MetaDefItem, Serializable

public final class FilterSpecParamEventPropIndexed
extends FilterSpecParam

This class represents a filter parameter containing a reference to another event's property in the event pattern result, for use to describe a filter parameter in a FilterSpecCompiled filter specification.

See Also:

Serialized Form

Field Summary

Fields inherited from class com.espertech.esper.filter.FilterSpecParam

EMPTY_PARAM_ARRAY, lookupable

Constructor Summary

Constructors

Constructor and Description
FilterSpecParamEventPropIndexed(FilterSpecLookupable lookupable, FilterOperator filterOperator, String resultEventAsName, int resultEventIndex, String resultEventProperty, boolean isMustCoerce, SimpleNumberCoercer numberCoercer, Class coercionType, String statementName) Constructor.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
Class	getCoercionType() Returns the numeric coercion type.
Object	getFilterValue(MatchedEventMap matchedEvents, AgentInstanceContext agentInstanceContext) Return the filter parameter constant to filter for.
String	getResultEventAsName() Returns tag for result event.
int	getResultEventIndex() Returns the index.
String	getResultEventProperty() Returns the property of the result event.
int	hashCode()
boolean	isMustCoerce() Returns true if numeric coercion is required, or false if not
String	toString()

Methods inherited from class com.espertech.esper.filter.FilterSpecParam

getFilterOperator, getLookupable, toArray

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

FilterSpecParamEventPropIndexed

public FilterSpecParamEventPropIndexed(FilterSpecLookupable lookupable,
                                       FilterOperator filterOperator,
                                       String resultEventAsName,
                                       int resultEventIndex,
                                       String resultEventProperty,
                                       boolean isMustCoerce,
                                       SimpleNumberCoercer numberCoercer,
                                       Class coercionType,
                                       String statementName)
                                throws IllegalArgumentException

Constructor.

Parameters:

lookupable - is the lookupable

filterOperator - is the type of compare

resultEventAsName - is the name of the result event from which to get a property value to compare

resultEventProperty - is the name of the property to get from the named result event

isMustCoerce - indicates on whether numeric coercion must be performed

coercionType - indicates the numeric coercion type to use

numberCoercer - interface to use to perform coercion

resultEventIndex - index

statementName - statement name

Throws:

IllegalArgumentException - if an operator was supplied that does not take a single constant value

Method Detail

isMustCoerce

public boolean isMustCoerce()

Returns true if numeric coercion is required, or false if not

Returns:

true to coerce at runtime

getCoercionType

public Class getCoercionType()

Returns the numeric coercion type.

Returns:

type to coerce to

getResultEventAsName

public String getResultEventAsName()

Returns tag for result event.

Returns:

tag

getResultEventProperty

public String getResultEventProperty()

Returns the property of the result event.

Returns:

property name

getFilterValue

public Object getFilterValue(MatchedEventMap matchedEvents,
                             AgentInstanceContext agentInstanceContext)

Description copied from class: FilterSpecParam

Return the filter parameter constant to filter for.

Specified by:

getFilterValue in class FilterSpecParam

Parameters:

matchedEvents - is the prior results that can be used to determine filter parameters

agentInstanceContext - context

Returns:

filter parameter constant's value

getResultEventIndex

public int getResultEventIndex()

Returns the index.

Returns:

index

toString

public final String toString()

Overrides:

toString in class FilterSpecParam

equals

public boolean equals(Object obj)

Overrides:

equals in class FilterSpecParam

hashCode

public int hashCode()

Overrides:

hashCode in class FilterSpecParam