com.haulmont.cuba.gui.data.aggregation

Interface AggregationStrategy<V,T>

Type Parameters:

T - type of aggregation result

V - type of property values or type of datasource items if AggregationInfo.Type#CUSTOM and MetaPropertyPath of aggregation info is null

public interface AggregationStrategy<V,T>

Custom aggregation strategy for Table component.

Method Summary

Modifier and Type	Method and Description
T	aggregate(java.util.Collection<V> propertyValues) Performs aggregation of propertyValues.
java.lang.Class<T>	getResultClass()

Method Detail

aggregate

T aggregate(java.util.Collection<V> propertyValues)

Performs aggregation of propertyValues.

Parameters:

propertyValues - values of the associated MetaPropertyPath or datasource items if MetaPropertyPath of aggregation info is null

Returns:

aggregation result

getResultClass

java.lang.Class<T> getResultClass()

Returns:

type of result value