io.jmix.ui.component.data.datagrid

Class EmptyTreeDataGridItems<E>

java.lang.Object

io.jmix.ui.component.data.datagrid.EmptyDataGridItems<E>

io.jmix.ui.component.data.datagrid.EmptyTreeDataGridItems<E>

All Implemented Interfaces:

DataGridItems<E>, DataGridItems.Sortable<E>, DataUnit, EmptyDataUnit, EntityDataGridItems<E>, EntityDataUnit, TreeDataGridItems<E>

public class EmptyTreeDataGridItems<E>
extends EmptyDataGridItems<E>
implements TreeDataGridItems<E>

Nested Class Summary

Nested classes/interfaces inherited from interface io.jmix.ui.component.data.DataGridItems

DataGridItems.ItemSetChangeEvent<T>, DataGridItems.SelectedItemChangeEvent<T>, DataGridItems.Sortable<T>, DataGridItems.ValueChangeEvent<T>

Nested classes/interfaces inherited from interface io.jmix.ui.component.data.DataUnit

DataUnit.StateChangeEvent

Field Summary

Fields inherited from class io.jmix.ui.component.data.datagrid.EmptyDataGridItems

metaClass

Constructor Summary

Constructors

Constructor and Description
EmptyTreeDataGridItems(io.jmix.core.metamodel.model.MetaClass metaClass)

Method Summary

Modifier and Type	Method and Description
int	getChildCount(E parent)
java.util.stream.Stream<E>	getChildren(E item)
java.lang.String	getHierarchyPropertyName() Returns the property of entity which forms the hierarchy.
E	getParent(E item)
boolean	hasChildren(E item)
void	resetSortOrder()
void	sort(java.lang.Object[] propertyId, boolean[] ascending)

Methods inherited from class io.jmix.ui.component.data.datagrid.EmptyDataGridItems

addItemSetChangeListener, addSelectedItemChangeListener, addStateChangeListener, addValueChangeListener, containsItem, getEntityMetaClass, getItem, getItemByIndex, getItemId, getItems, getItems, getItemValue, getSelectedItem, getState, indexOfItem, setSelectedItem, size

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.jmix.ui.component.data.DataGridItems.Sortable

enableSorting, suppressSorting

Methods inherited from interface io.jmix.ui.component.data.DataGridItems

addItemSetChangeListener, addSelectedItemChangeListener, addValueChangeListener, containsItem, getItem, getItemByIndex, getItemId, getItems, getItems, getItemValue, getSelectedItem, indexOfItem, setSelectedItem, size

Methods inherited from interface io.jmix.ui.component.data.DataUnit

addStateChangeListener, getState

Constructor Detail

EmptyTreeDataGridItems

public EmptyTreeDataGridItems(io.jmix.core.metamodel.model.MetaClass metaClass)

Method Detail

getChildCount

public int getChildCount(E parent)

Specified by:

getChildCount in interface TreeDataGridItems<E>

Parameters:

parent - the parent item

Returns:

child count of the given parent item

getChildren

public java.util.stream.Stream<E> getChildren(@Nullable
                                              E item)

Specified by:

getChildren in interface TreeDataGridItems<E>

Parameters:

item - the item to obtain children or null to get root items

Returns:

children of the given item

hasChildren

public boolean hasChildren(E item)

Specified by:

hasChildren in interface TreeDataGridItems<E>

Parameters:

item - the item to check

Returns:

true if the item has children, false otherwise

getParent

@Nullable
public E getParent(E item)

Specified by:

getParent in interface TreeDataGridItems<E>

Parameters:

item - the item to get parent

Returns:

the parent of the given item or null if no parent

getHierarchyPropertyName

public java.lang.String getHierarchyPropertyName()

Description copied from interface: TreeDataGridItems

Returns the property of entity which forms the hierarchy.

Specified by:

getHierarchyPropertyName in interface TreeDataGridItems<E>

Returns:

hierarchy property name

sort

public void sort(java.lang.Object[] propertyId,
                 boolean[] ascending)

Specified by:

sort in interface DataGridItems.Sortable<E>

Overrides:

sort in class EmptyDataGridItems<E>

resetSortOrder

public void resetSortOrder()

Specified by:

resetSortOrder in interface DataGridItems.Sortable<E>

Overrides:

resetSortOrder in class EmptyDataGridItems<E>