Package io.jmix.ui.component.tree

Class TreeDataProvider<T>

java.lang.Object

com.vaadin.data.provider.AbstractDataProvider<T,com.vaadin.server.SerializablePredicate<T>>

io.jmix.ui.component.tree.TreeDataProvider<T>

All Implemented Interfaces:

com.vaadin.data.provider.DataProvider<T,com.vaadin.server.SerializablePredicate<T>>, com.vaadin.data.provider.HierarchicalDataProvider<T,com.vaadin.server.SerializablePredicate<T>>, EnhancedTreeDataProvider<T>, Serializable

public class TreeDataProvider<T>
extends com.vaadin.data.provider.AbstractDataProvider<T,com.vaadin.server.SerializablePredicate<T>>
implements com.vaadin.data.provider.HierarchicalDataProvider<T,com.vaadin.server.SerializablePredicate<T>>, EnhancedTreeDataProvider<T>

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected TreeSourceEventsDelegate<T>	eventsDelegate
protected Subscription	itemSetChangeSubscription
protected Subscription	selectedItemChangeSubscription
protected Subscription	stateChangeSubscription
protected TreeItems<T>	treeItems
protected Subscription	valueChangeSubscription

Constructor Summary

Constructors

Constructor	Description
TreeDataProvider(TreeItems<T> treeItems, TreeSourceEventsDelegate<T> eventsDelegate)

Method Summary

Modifier and Type	Method	Description
protected void	datasourceItemSetChanged(TreeItems.ItemSetChangeEvent<T> event)
protected void	datasourceSelectedItemChanged(TreeItems.SelectedItemChangeEvent<T> event)
protected void	datasourceStateChanged(DataUnit.StateChangeEvent event)
protected void	datasourceValueChanged(TreeItems.ValueChangeEvent<T> event)
Stream<T>	fetchChildren(com.vaadin.data.provider.HierarchicalQuery<T,com.vaadin.server.SerializablePredicate<T>> query)
int	getChildCount(com.vaadin.data.provider.HierarchicalQuery<T,com.vaadin.server.SerializablePredicate<T>> query)
Object	getId(T item)
Stream<T>	getItems()
T	getParent(T item)
TreeItems<T>	getTreeItems()
boolean	hasChildren(T item)
boolean	isInMemory()
int	size(com.vaadin.data.provider.Query<T,com.vaadin.server.SerializablePredicate<T>> query)
void	unbind()

Methods inherited from class com.vaadin.data.provider.AbstractDataProvider

addDataProviderListener, addListener, fireEvent, refreshAll, refreshItem

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.vaadin.data.provider.DataProvider

addDataProviderListener, refreshAll, refreshItem, withConfigurableFilter, withConfigurableFilter, withConvertedFilter

Methods inherited from interface com.vaadin.data.provider.HierarchicalDataProvider

fetch

Field Details

treeItems

protected TreeItems<T> treeItems

eventsDelegate

protected TreeSourceEventsDelegate<T> eventsDelegate

itemSetChangeSubscription

protected Subscription itemSetChangeSubscription

valueChangeSubscription

protected Subscription valueChangeSubscription

stateChangeSubscription

protected Subscription stateChangeSubscription

selectedItemChangeSubscription

protected Subscription selectedItemChangeSubscription

Constructor Details

TreeDataProvider

public TreeDataProvider(TreeItems<T> treeItems,
 TreeSourceEventsDelegate<T> eventsDelegate)

Method Details

unbind

public void unbind()

getTreeItems

public TreeItems<T> getTreeItems()

getId

public Object getId(T item)

Specified by:

getId in interface com.vaadin.data.provider.DataProvider<T,com.vaadin.server.SerializablePredicate<T>>

isInMemory

public boolean isInMemory()

Specified by:

isInMemory in interface com.vaadin.data.provider.DataProvider<T,com.vaadin.server.SerializablePredicate<T>>

size

public int size(com.vaadin.data.provider.Query<T,com.vaadin.server.SerializablePredicate<T>> query)

Specified by:

size in interface com.vaadin.data.provider.DataProvider<T,com.vaadin.server.SerializablePredicate<T>>

Specified by:

size in interface com.vaadin.data.provider.HierarchicalDataProvider<T,com.vaadin.server.SerializablePredicate<T>>

getChildCount

public int getChildCount(com.vaadin.data.provider.HierarchicalQuery<T,com.vaadin.server.SerializablePredicate<T>> query)

Specified by:

getChildCount in interface com.vaadin.data.provider.HierarchicalDataProvider<T,com.vaadin.server.SerializablePredicate<T>>

fetchChildren

public Stream<T> fetchChildren(com.vaadin.data.provider.HierarchicalQuery<T,com.vaadin.server.SerializablePredicate<T>> query)

Specified by:

fetchChildren in interface com.vaadin.data.provider.HierarchicalDataProvider<T,com.vaadin.server.SerializablePredicate<T>>

hasChildren

public boolean hasChildren(T item)

Specified by:

hasChildren in interface com.vaadin.data.provider.HierarchicalDataProvider<T,com.vaadin.server.SerializablePredicate<T>>

getItems

public Stream<T> getItems()

Specified by:

getItems in interface EnhancedTreeDataProvider<T>

getParent

@Nullable
public T getParent(T item)

Specified by:

getParent in interface EnhancedTreeDataProvider<T>

datasourceItemSetChanged

protected void datasourceItemSetChanged(TreeItems.ItemSetChangeEvent<T> event)

datasourceValueChanged

protected void datasourceValueChanged(TreeItems.ValueChangeEvent<T> event)

datasourceStateChanged

protected void datasourceStateChanged(DataUnit.StateChangeEvent event)

datasourceSelectedItemChanged

protected void datasourceSelectedItemChanged(TreeItems.SelectedItemChangeEvent<T> event)