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Interface com.ibm.as400.vaccess.VNode

public interface VNode
extends VObject, TreeNode
The VNode interface defines the representation of an AS/400 resource that exists in a hierarchy.

In the hierarchy, a node has exactly one parent and any number of children. Note that there may be a different set of children for the "tree" hierarchy than those represented in the "details" hierarchy. The tree hierarchy is for displaying in tree views, while the details hierarchy is for list and details views.

Most errors are reported as ErrorEvents rather than throwing exceptions. Users should listen for ErrorEvents in order to diagnose and recover from error conditions.

VNode objects generate the following events:

An implementation of this interface should pass on all events fired by its children to its listeners.


Method Index

 o getDetailsChildAt(int)
Returns the child for the details at the specified index.
 o getDetailsChildCount()
Returns the number of children for the details.
 o getDetailsColumnModel()
Returns the table column model to use in the details when representing the children.
 o getDetailsIndex(VObject)
Returns the index of the specified child for the details.
 o isSortable()
Indicates if the details children are sortable.
 o sortDetailsChildren(Object[], boolean[])
Sorts the children for the details.

Methods

 o getDetailsColumnModel
 public abstract TableColumnModel getDetailsColumnModel()
Returns the table column model to use in the details when representing the children. Each of the columns in this column model has an identifier that identifies the property with which it is associated. The property values of the children are then displayed in that column.

Returns:
The details column model, or null if there is none.
See Also:
getPropertyValue
 o getDetailsChildAt
 public abstract VObject getDetailsChildAt(int index)
Returns the child for the details at the specified index.

Parameters:
index - The index.
Returns:
The child, or null if the index is not valid.
 o getDetailsChildCount
 public abstract int getDetailsChildCount()
Returns the number of children for the details.

Returns:
The number of children for the details.
 o getDetailsIndex
 public abstract int getDetailsIndex(VObject detailsChild)
Returns the index of the specified child for the details.

Parameters:
detailsChild - The details child.
Returns:
The index, or -1 if the child is not found in the details.
 o isSortable
 public abstract boolean isSortable()
Indicates if the details children are sortable. An implementation that contains a large number of children or children that are not all loaded from the system at once may not want its' children to be sortable.

Returns:
true if the details children are sortable; false otherwise.
 o sortDetailsChildren
 public abstract void sortDetailsChildren(Object propertyIdentifiers[],
                                          boolean orders[])
Sorts the children for the details. The propertyIdentifer[0], orders[0] combination is used to do the sort. If the values are equal, propertyIdentifier[1], orders[1] is used to break the tie, and so forth.

An implementation that contains a large number of children or children that are not all loaded from the system at once may not want to allow sorting of its children. In that case, this method will have no effect.

Parameters:
propertyIdentifiers - The property identifiers. If any of the property identifiers are null, it means to sort using the string representation of the object.
orders - The sort orders for each property identifier. true for ascending order; false for descending order.

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