org.boon.criteria

Class DoubleCollector

java.lang.Object

org.boon.criteria.Selector

org.boon.criteria.DoubleCollector

public class DoubleCollector
extends Selector

Collects primitive values from Data repo results. It avoids the creation of many wrapper objects. It also provides a wicked fast version of List which can do mean, median, standard deviation, sum, etc. over the returned results.

Field Summary

Fields inherited from class org.boon.criteria.Selector

alias, name, path

Constructor Summary

Constructors

Constructor and Description
DoubleCollector(String fieldName)

Method Summary

Methods

Modifier and Type	Method and Description
void	handleComplete(List<Map<String,Object>> rows)
void	handleRow(int index, Map<String,Object> row, Object item, Map<String,FieldAccess> fields)
void	handleStart(Collection<?> results)
static DoubleCollector	intCollector(String propertyName) Factory for int collector.
DoubleList	list()

Methods inherited from class org.boon.criteria.Selector

collectFrom, collectFrom, getAlias, getName, getPropertyValue, getPropertyValueAndPutIntoRow, rowId, select, select, selectAs, selectAs, selectAsTemplate, selectFrom, selectFrom, selectPropPath, selects, toStr, toStr, toStr

Methods inherited from class java.lang.Object

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

Constructor Detail

DoubleCollector

public DoubleCollector(String fieldName)

Method Detail

intCollector

public static DoubleCollector intCollector(String propertyName)

Factory for int collector.

Parameters:

propertyName - name of property to collect

Returns:

new values

handleRow

public void handleRow(int index,
             Map<String,Object> row,
             Object item,
             Map<String,FieldAccess> fields)

Specified by:

handleRow in class Selector

handleStart

public void handleStart(Collection<?> results)

Specified by:

handleStart in class Selector

handleComplete

public void handleComplete(List<Map<String,Object>> rows)

Specified by:

handleComplete in class Selector

list

public DoubleList list()