org.springframework.datastore.query
Class Query.ProjectionList

java.lang.Object
  org.springframework.datastore.query.Query.ProjectionList

Enclosing class:

Query

public static class Query.ProjectionList
extends Object

A list of projections

Constructor Summary

Query.ProjectionList()

Method Summary

Query.ProjectionList	add(Query.Projection p)
Query.ProjectionList	avg(String name) Computes the average value of a property
Query.ProjectionList	count()
List<Query.Projection>	getProjectionList()
Query.ProjectionList	id()
boolean	isEmpty()
Query.ProjectionList	max(String name) Computes the max value of a property
Query.ProjectionList	min(String name) Computes the min value of a property
Query.ProjectionList	property(String name) A projection that obtains the value of a property of an entity
Query.ProjectionList	sum(String name) Computes the sum of a property

Methods inherited from class java.lang.Object

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

Constructor Detail

Query.ProjectionList

public Query.ProjectionList()

Method Detail

getProjectionList

public List<Query.Projection> getProjectionList()

add

public Query.ProjectionList add(Query.Projection p)

id

public Query.ProjectionList id()

count

public Query.ProjectionList count()

isEmpty

public boolean isEmpty()

property

public Query.ProjectionList property(String name)

A projection that obtains the value of a property of an entity

Parameters:

name - The name of the property

Returns:

The PropertyProjection instance

sum

public Query.ProjectionList sum(String name)

Computes the sum of a property

Parameters:

name - The name of the property

Returns:

The PropertyProjection instance

min

public Query.ProjectionList min(String name)

Computes the min value of a property

Parameters:

name - The name of the property

Returns:

The PropertyProjection instance

max

public Query.ProjectionList max(String name)

Computes the max value of a property

Parameters:

name - The name of the property

Returns:

The PropertyProjection instance

avg

public Query.ProjectionList avg(String name)

Computes the average value of a property

Parameters:

name - The name of the property

Returns:

The PropertyProjection instance