com.viaoa.hub

Class HubGroupBy<F extends OAObject,G extends OAObject>

java.lang.Object

com.viaoa.hub.HubGroupBy<F,G>

public class HubGroupBy<F extends OAObject,G extends OAObject>
extends Object

Creates a groupBy hub from a new single hub. Equivalent of a database groupBy. The combined Hub (see getCombinedHub) uses OAObject OAGroupBy<F, G>, where G is the same class as the groupBy Hub and F is a hub of the from objects. // group Employees by Dept new HubGroupBy<Emp, Dept>(hubEmp, hubAllDept, "depts") new HubGroupBy<Emp, Dept>(hubEmp, "depts") Split property path - this is when all of the methods in a pp are not public (link that does not create method). HubGroupBy is able to group them by splitting the pp using HubGroupBy and HubFrom to get a combined group. ex: MRADClient.Application.ApplicationType.ApplicationGroup, hubFrom=hubMRADClients, hubGroupBy=hubApplicationGroups note: the method for ApplicationType.getApplicationGroups() is not created (is private) new HubGroupBy(hubMRADClients, hubApplicationGroups, "MRADClient.Application.ApplicationType.ApplicationGroup") internally will create 2 HubGroupBys ... (hubMRADClients, "MRADClient.Application.ApplicationType") (hubApplicationGroups, "ApplicationTypes")

Author:

vvia

See Also:

to create a "flat" list.

Constructor Summary

Constructors

Constructor and Description
HubGroupBy(Hub<F> hubB, Hub<G> hubFrom, String propertyPath)
HubGroupBy(Hub<F> hubB, Hub<G> hubFrom, String propertyPath, boolean bCreateNullList) Create a hub on objects that are based on hubB, and are grouped by hubA.
HubGroupBy(Hub<F> hubB, String propertyPath)
HubGroupBy(Hub<F> hubB, String propertyPath, boolean bCreateNullList) Create a hub of objects that are based on hubB.
HubGroupBy(HubGroupBy<F,G> hgb1, HubGroupBy<F,G> hgb2)
HubGroupBy(HubGroupBy<F,G> hgb1, HubGroupBy<F,G> hgb2, boolean bCreateNullList) Combine two hgbs.
HubGroupBy(HubGroupBy<F,G> hgb, String pp)
HubGroupBy(HubGroupBy<F,G> hgb, String pp, boolean bCreateNullList) create a new hgb that creates a combined groupBy with another.

Method Summary

Modifier and Type	Method and Description
Hub<OAGroupBy<F,G>>	getCombinedHub()
Hub<F>	getDetailHub()
String	getGroupByPP()
String	getHubByPP()
Hub<G>	getMasterHub()

Methods inherited from class java.lang.Object

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

Constructor Detail

HubGroupBy

public HubGroupBy(Hub<F> hubB,
                  String propertyPath,
                  boolean bCreateNullList)

Create a hub of objects that are based on hubB.

Parameters:

hubB -

propertyPath -

HubGroupBy

public HubGroupBy(Hub<F> hubB,
                  String propertyPath)

HubGroupBy

public HubGroupBy(Hub<F> hubB,
                  Hub<G> hubFrom,
                  String propertyPath,
                  boolean bCreateNullList)

Create a hub on objects that are based on hubB, and are grouped by hubA. This allows the combined hub to have a full list like a left-join.

Parameters:

propertyPath - pp of the property from the right object to get left object. example: if hubDept, hubEmpOrders, then "Employee.Department" HubGroupBy(hubEmpOrders, hubDept, "Employee.Department") -or- HubGroupBy(hubEmpOrders, "Employee.Department")

HubGroupBy

public HubGroupBy(Hub<F> hubB,
                  Hub<G> hubFrom,
                  String propertyPath)

HubGroupBy

public HubGroupBy(HubGroupBy<F,G> hgb1,
                  HubGroupBy<F,G> hgb2,
                  boolean bCreateNullList)

Combine two hgbs.

HubGroupBy

public HubGroupBy(HubGroupBy<F,G> hgb1,
                  HubGroupBy<F,G> hgb2)

HubGroupBy

public HubGroupBy(HubGroupBy<F,G> hgb,
                  String pp,
                  boolean bCreateNullList)

create a new hgb that creates a combined groupBy with another.

HubGroupBy

public HubGroupBy(HubGroupBy<F,G> hgb,
                  String pp)

Method Detail

getCombinedHub

public Hub<OAGroupBy<F,G>> getCombinedHub()

Returns:

Hub of combined objects using OAGroupBy

getMasterHub

public Hub<G> getMasterHub()

Returns:

Hub of groupBy objects that are in sync (share AO) with combined Hub.

getDetailHub

public Hub<F> getDetailHub()

Returns:

detail hub from compoundHub.hub

getGroupByPP

public String getGroupByPP()

getHubByPP

public String getHubByPP()