Package io.jmix.flowui.model.impl

Class AbstractDataComponentsHolder

java.lang.Object

io.jmix.flowui.model.impl.AbstractDataComponentsHolder

All Implemented Interfaces:

HasDataComponents, ObservableDataHolder

Direct Known Subclasses:

FragmentDataImpl, ViewDataImpl

public abstract class AbstractDataComponentsHolder
extends Object
implements HasDataComponents, ObservableDataHolder

Abstract implementation of the HasDataComponents interface providing a base for managing data-related components such as DataContext, InstanceContainer, and DataLoader.

Implements ObservableDataHolder so that every registered loader gets a monitoring info provider attached automatically in registerLoader(String, DataLoader). The two getters of ObservableDataHolder are not implemented here — concrete subclasses must declare their observability context explicitly.

Field Summary

Fields

Modifier and Type	Field	Description
protected Map<String,InstanceContainer<?>>	containers
protected DataContext	dataContext
protected Map<String,DataLoader>	loaders

Constructor Summary

Constructors

Constructor	Description
AbstractDataComponentsHolder()

Method Summary

Modifier and Type	Method	Description
<T extends InstanceContainer<?>> T	getContainer(String id)	Returns a container by its id.
Set<String>	getContainerIds()	Returns ids of all registered containers.
protected Map<String,InstanceContainer<?>>	getContainers()
DataContext	getDataContext()	Returns view's DataContext.
@Nullable DataContext	getDataContextOrNull()	Returns view's DataContext or null if it is not defined.
<T extends DataLoader> T	getLoader(String id)	Returns a loader by its id.
Set<String>	getLoaderIds()	Returns ids of all registered loaders.
protected Map<String,DataLoader>	getLoaders()
protected abstract @Nullable String	getOwnerId()
void	loadAll()	Performs DataLoader.load() for all loaders registered in the view.
void	registerContainer(String id, InstanceContainer<?> container)	Registers the given container
void	registerLoader(String id, DataLoader loader)	Registers the given loader
void	setDataContext(DataContext dataContext)	Sets DataContext instance for the view.

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.jmix.flowui.monitoring.ObservableDataHolder

getObservableFragmentId, getObservableViewId

Field Details

dataContext

protected DataContext dataContext

containers

protected Map<String,InstanceContainer<?>> containers

loaders

protected Map<String,DataLoader> loaders

Constructor Details

AbstractDataComponentsHolder

public AbstractDataComponentsHolder()

Method Details

getDataContext

public DataContext getDataContext()

Description copied from interface: HasDataComponents

Returns view's DataContext.

Specified by:

getDataContext in interface HasDataComponents

getDataContextOrNull

public @Nullable DataContext getDataContextOrNull()

Description copied from interface: HasDataComponents

Returns view's DataContext or null if it is not defined.

Specified by:

getDataContextOrNull in interface HasDataComponents

setDataContext

public void setDataContext(DataContext dataContext)

Description copied from interface: HasDataComponents

Sets DataContext instance for the view.

Specified by:

setDataContext in interface HasDataComponents

getContainer

public <T extends InstanceContainer<?>> T getContainer(String id)

Description copied from interface: HasDataComponents

Returns a container by its id.

Specified by:

getContainer in interface HasDataComponents

getLoader

public <T extends DataLoader> T getLoader(String id)

Description copied from interface: HasDataComponents

Returns a loader by its id.

Specified by:

getLoader in interface HasDataComponents

getContainerIds

public Set<String> getContainerIds()

Description copied from interface: HasDataComponents

Returns ids of all registered containers.

Specified by:

getContainerIds in interface HasDataComponents

getLoaderIds

public Set<String> getLoaderIds()

Description copied from interface: HasDataComponents

Returns ids of all registered loaders.

Specified by:

getLoaderIds in interface HasDataComponents

registerContainer

public void registerContainer(String id,
 InstanceContainer<?> container)

Description copied from interface: HasDataComponents

Registers the given container

Specified by:

registerContainer in interface HasDataComponents

registerLoader

public void registerLoader(String id,
 DataLoader loader)

Description copied from interface: HasDataComponents

Registers the given loader

Specified by:

registerLoader in interface HasDataComponents

getOwnerId

protected abstract @Nullable String getOwnerId()

loadAll

public void loadAll()

Description copied from interface: HasDataComponents

Performs DataLoader.load() for all loaders registered in the view.

Specified by:

loadAll in interface HasDataComponents

getContainers

protected Map<String,InstanceContainer<?>> getContainers()

getLoaders

protected Map<String,DataLoader> getLoaders()