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qqq/docs/metaData/Apps.adoc
2023-12-15 18:41:30 -06:00

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[#Apps]
== Apps
include::../variables.adoc[]
QQQ User Interfaces (e.g., Material Dashboard) generally organize their contents via *Apps*.
Apps are a lightweight construct in QQQ - basically just containers for other objects.
Specifically, Apps can contain:
* {link-widgets}
* {link-tables}
* {link-process}
* {link-reports}
* Other {link-apps} - to create a multi-tiered navigational hierarchy.
=== QAppMetaData
Apps are defined in a QQQ Instance in `*QAppMetaData*` objects. Apps must consist of either 1 or more {link-widgets}, or 1 or more *Sections*, which are expected to contain 1 or more {link-tables}, {link-processes}, or {link-reports}.
*QAppMetaData Properties:*
* `name` - *String, Required* - Unique name for the app within the QQQ Instance.
* `label` - *String* - User-facing label for the app, presented in User Interfaces.
Inferred from `name` if not set.
* `permissionRules` - *QPermissionRules* - Permissions to apply to the app. See {link-permissionRules} for details.
* `children` - *List of QAppChildMetaData* - Objects contained within the app. These can be {link-tables}, {link-processes}, {link-reports} or other {link-apps}.
** See the example below for some common patterns for how these child-meta data objects are added to an App.
* `parentAppName` - *String* - For an app which is a child of another app, the parent app's name is referenced in this field.
** Note that this is generally automatically set when the child is added to its parent, in the `addChild` method.
* `icon` - *QIcon* - An icon to display in a UI for the app. See {link-icons}.
* `widgets` - *List of String* - A list of names of {link-widgets} to include in the app.
* `sections` - *List of <<QAppSection>>* - A list of `QAppSection` objects, to create organizational subdivisions within the app.
** As shown in the example below, the method `withSectionOfChildren` can be used to fluently add a new `QAppSection`, along with its child objects, to both an app and a section all at once.
==== QAppSection
A `QAppSection` is an organizational subsection of a {link-app}.
* `name` - *String, Required* - Unique name for the section within its app.
* `label` - *String* - User-facing label for the section, presented in User Interfaces.
Inferred from `name` if not set.
* `icon` - *QIcon* - An icon to display in a UI for the section. See {link-icons}.
* `tables` - *List of String* - A list of names of {link-tables} to include in the section.
* `processes` - *List of String* - A list of names of {link-processes} to include in the section.
* `reports` - *List of String* - A list of names of {link-reports} to include in the section.
*Examples*
[source,java]
----
/*******************************************************************************
** Full example of constructing a QAppMetaData object.
*******************************************************************************/
public class ExampleAppMetaDataProducer extends MetaDataProducer<QAppMetaData>
{
/*******************************************************************************
** Produce the QAppMetaData
*******************************************************************************/
@Override
public QAppMetaData produce(QInstance qInstance) throws QException
{
return (new QAppMetaData()
.withName("sample")
.withLabel("My Sample App")
.withIcon(new QIcon().withName("thumb_up"))
.withWidgets(List.of(
UserWelcomeWidget.NAME,
SystemHealthLineChartWidget.NAME))
.withSectionOfChildren(new QAppSection().withName("peoplePlacesAndThings"),
qInstance.getTable(People.TABLE_NAME),
qInstance.getTable(Places.TABLE_NAME),
qInstance.getTable(Things.TABLE_NAME),
qInstance.getProcess(AssociatePeopleWithPlacesProcess.NAME))
.withSectionOfChildren(new QAppSection().withName("math").withLabel("Mathematics"),
qInstance.getProcess(ComputePiProcess.NAME),
qInstance.getReport(PrimeNumbersReport.NAME),
qInstance.getReport(PolygonReport.NAME)));
}
/*******************************************************************************
** Since this meta-data producer expects to find other meta-data objects in the
** QInstance, give it a sortOrder higher than the default (which we'll expect
** the other objects used).
*******************************************************************************/
@Override
public int getSortOrder()
{
return (Integer.MAX_VALUE);
}
}
----