oracle.cabo.ui.data.tree
Class BaseHGridDataProxy

java.lang.Object
  |
  +--oracle.cabo.ui.data.tree.BaseTreeDataProxy
        |
        +--oracle.cabo.ui.data.tree.BaseHGridDataProxy

All Implemented Interfaces:

HGridDataProxy, TreeDataProxy

public class BaseHGridDataProxy

extends BaseTreeDataProxy

implements HGridDataProxy

Constructor Summary

BaseHGridDataProxy()

Method Summary

DataObjectList	getBreadCrumbs(RenderingContext context, DataObject root)
java.lang.String	getCollapseAllDestination(RenderingContext context, DataObject focusRoot) Gets the destination of the collapse-all link in an HGrid.
java.lang.String	getEventDestination(RenderingContext context, java.lang.String event, DataObject node, int index) Gets the destination of the link for the given event in an HGrid row.
java.lang.String	getExpandAllDestination(RenderingContext context, DataObject focusRoot) Gets the destination of the expand-all link in an HGrid.
java.lang.String	getFocusDestination(RenderingContext context, DataObject node, int index) Gets the destination of the focus link in an HGrid row.
DataObject	getFocusRoot(RenderingContext context, DataObject root) Gets the tree node that has the focus.
int	getViewNumber(RenderingContext context, int index) For large record sets it's expensive to display every row.
boolean	isExpandAllEnabled(RenderingContext context, DataObject focusRoot) checks to see if the expand/collapse-all links on this HGrid are enabled.

Methods inherited from class oracle.cabo.ui.data.tree.BaseTreeDataProxy

doPostRender, getChildren, getCollapseDestination, getExpandable, getExpandDestination, isSelected, selectionEnabled, setFormName, sharedInstance

Methods inherited from class java.lang.Object

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

Methods inherited from interface oracle.cabo.ui.data.tree.TreeDataProxy

doPostRender, getChildren, getCollapseDestination, getExpandable, getExpandDestination, isSelected, selectionEnabled, setFormName

Constructor Detail

BaseHGridDataProxy

public BaseHGridDataProxy()

Method Detail

getFocusRoot

public DataObject getFocusRoot(RenderingContext context,
                               DataObject root)

Description copied from interface: HGridDataProxy

Gets the tree node that has the focus.

Specified by:

getFocusRoot in interface HGridDataProxy

Returns:

the root

getBreadCrumbs

public DataObjectList getBreadCrumbs(RenderingContext context,
                                     DataObject root)

Specified by:

getBreadCrumbs in interface HGridDataProxy

Returns:

null

isExpandAllEnabled

public boolean isExpandAllEnabled(RenderingContext context,
                                  DataObject focusRoot)

Description copied from interface: HGridDataProxy

checks to see if the expand/collapse-all links on this HGrid are enabled. If an expand-all operation on the focus root (the tree node that has the focus) would result in too many rows, then this method must return false.

Specified by:

isExpandAllEnabled in interface HGridDataProxy

Returns:

false

getExpandAllDestination

public java.lang.String getExpandAllDestination(RenderingContext context,
                                                DataObject focusRoot)

Description copied from interface: HGridDataProxy

Gets the destination of the expand-all link in an HGrid. This method is called only if the expand-all operation is permitted.

Specified by:

getExpandAllDestination in interface HGridDataProxy

Returns:

null

getCollapseAllDestination

public java.lang.String getCollapseAllDestination(RenderingContext context,
                                                  DataObject focusRoot)

Description copied from interface: HGridDataProxy

Gets the destination of the collapse-all link in an HGrid. This method is called only if the expand-all operation is permitted.

Specified by:

getCollapseAllDestination in interface HGridDataProxy

Returns:

null

getFocusDestination

public java.lang.String getFocusDestination(RenderingContext context,
                                            DataObject node,
                                            int index)

Description copied from interface: HGridDataProxy

Gets the destination of the focus link in an HGrid row.

Specified by:

getFocusDestination in interface HGridDataProxy

Returns:

null

getEventDestination

public java.lang.String getEventDestination(RenderingContext context,
                                            java.lang.String event,
                                            DataObject node,
                                            int index)

Description copied from interface: HGridDataProxy

Gets the destination of the link for the given event in an HGrid row.

Specified by:

getEventDestination in interface HGridDataProxy

Returns:

null

getViewNumber

public int getViewNumber(RenderingContext context,
                         int index)

Description copied from interface: HGridDataProxy

For large record sets it's expensive to display every row. Instead we implement a view on the child rows. The views are of a fixed size known to the renderer. This method returns the number of the view that should be displayed (so row getViewNum(...) * viewSize is the row number).

Specified by:

getViewNumber in interface HGridDataProxy

Returns:

0