Package com.github.bordertech.wcomponents

Class EmptyTreeItemModel

java.lang.Object

com.github.bordertech.wcomponents.AbstractTreeItemModel

com.github.bordertech.wcomponents.EmptyTreeItemModel

All Implemented Interfaces:

TreeItemModel, Serializable

public final class EmptyTreeItemModel
extends AbstractTreeItemModel

An empty data model implementation, the default model used by WTree.

Since:

1.1.0

Author:

Jonathan Austin

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface com.github.bordertech.wcomponents.TreeItemModel

TreeItemModel.ShuffleType

Field Summary

Fields

Modifier and Type	Field	Description
static EmptyTreeItemModel	INSTANCE	The singleton instance.

Method Summary

Modifier and Type	Method	Description
int	getChildCount(List<Integer> row)	Retrieves the number of children a row has.
String	getItemLabel(List<Integer> row)	Retrieves the label at the given row.
int	getRowCount()	Retrieves the number of rows for the root (ie top) level.

Methods inherited from class com.github.bordertech.wcomponents.AbstractTreeItemModel

getItemId, getItemImage, getItemShuffleType, hasChildren, isDisabled, isExpandable

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final EmptyTreeItemModel INSTANCE

The singleton instance.

Method Detail

getRowCount

public int getRowCount()

Retrieves the number of rows for the root (ie top) level.

Returns:

the number of rows in the model for the root (ie top) level.

getChildCount

public int getChildCount(List<Integer> row)

Retrieves the number of children a row has.

Parameters:

row - the row index

Returns:

the number of rows in the model for this level.

getItemLabel

public String getItemLabel(List<Integer> row)

Retrieves the label at the given row.

Parameters:

row - - the row index.

Returns:

the value at the given row.