com.mysema.query.group
Class GroupByProjection<K,V>

java.lang.Object
  com.mysema.query.group.GroupBy<K,V>
      com.mysema.query.group.GroupByProjection<K,V>

Type Parameters:

K -

V -

All Implemented Interfaces:

ResultTransformer<Map<K,V>>

public abstract class GroupByProjection<K,V>
extends GroupBy<K,V>

GroupByProjection provides projection of the Group results via the transform template method

Author:

tiwe

Field Summary

Fields inherited from class com.mysema.query.group.GroupBy

expressions, groupExpressions, maps

Constructor Summary

GroupByProjection(Expression<K> key, Expression<?>... expressions)

Method Summary

protected abstract V	transform(Group group) Creates a result object from the given group
protected Map<K,V>	transform(Map<K,Group> groups)

Methods inherited from class com.mysema.query.group.GroupBy

avg, groupBy, list, map, max, min, set, sum, transform

Methods inherited from class java.lang.Object

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

Constructor Detail

GroupByProjection

public GroupByProjection(Expression<K> key,
                         Expression<?>... expressions)

Method Detail

transform

protected Map<K,V> transform(Map<K,Group> groups)

Overrides:

transform in class GroupBy<K,V>

transform

protected abstract V transform(Group group)

Creates a result object from the given group

Parameters:

group -

Returns: