Package de.xima.fc.common.form

Class TreeAccessorXItem

java.lang.Object

de.xima.fc.common.form.TreeAccessorXItem

All Implemented Interfaces:

ITreeAccessor<XItem,String>

public final class TreeAccessorXItem
extends Object
implements ITreeAccessor<XItem,String>

A ITreeAccessor for XItem that accesses the children of an item. The hierarchy is specified by an item's parent ID. The ID is AXItemPropertiesData.getId().

Method Summary

Modifier and Type	Method	Description
List<XItem>	getChildren(XItem xItem)
String	getId(XItem xItem)
static ITreeAccessor<XItem,String>	ofChildMap(Map<String,? extends List<XItem>> childMap)	Creates a new tree accessor for XItems using the given precomputed child map.
static ITreeAccessor<XItem,String>	ofXForm(IXForm xForm)	Creates a new tree accessor for the XItems of the given form.
static ITreeAccessor<XItem,String>	ofXItems(Iterable<XItem> xItems)	Creates a new tree accessor for the given XItems.

Methods inherited from class java.lang.Object

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

Method Detail

getChildren

public List<XItem> getChildren(XItem xItem)

Specified by:

getChildren in interface ITreeAccessor<XItem,String>

Parameters:

xItem - The node for which to get the children.

Returns:

A list of all children of the given tree node, empty array if it is a leaf node.

getId

public String getId(XItem xItem)

Specified by:

getId in interface ITreeAccessor<XItem,String>

Parameters:

xItem - A node for which to retrieve its ID.

Returns:

The (unique) identifier of the given tree node.

ofChildMap

public static ITreeAccessor<XItem,String> ofChildMap(Map<String,? extends List<XItem>> childMap)

Creates a new tree accessor for XItems using the given precomputed child map.

Parameters:

childMap - A map from the ID of an item to its children.

Returns:

A tree accessor for XItems.

ofXForm

public static ITreeAccessor<XItem,String> ofXForm(IXForm xForm)

Creates a new tree accessor for the XItems of the given form.

Parameters:

xForm - A form with XItems.

Returns:

A tree accessor for XItems.

ofXItems

public static ITreeAccessor<XItem,String> ofXItems(Iterable<XItem> xItems)

Creates a new tree accessor for the given XItems.

Parameters:

xItems - A list of items that form a hierarchy.

Returns:

A tree accessor for XItems.