eu.webtoolkit.jwt
Class WAbstractProxyModel.BaseItem

java.lang.Object
  eu.webtoolkit.jwt.WAbstractProxyModel.BaseItem

Enclosing class:

WAbstractProxyModel

protected static class WAbstractProxyModel.BaseItem
extends java.lang.Object

A base class for an item modeling a source index parent.

Many mplementations of a proxy model will need to maintain a data structure per source model indexes, where they relate source rows or columns to proxy rows or columns, per hierarchical parent.

It may be convenient to start from this item class as a base class so that WAbstractProxyModel#shiftModelIndexes() can be used to update this data structure when the source model adds or removes rows.

You will typically use your derived class of this item as the internal pointer for proxy model indexes: a proxy model index will have an item as internal pointer whose sourceIndex_ corresponds to the source equivalent of the proxy model index parent.

See Also:

WAbstractItemModel.createIndex(int row, int column, Object ptr)

Field Summary

WModelIndex

sourceIndex_ The source model index.

Constructor Summary

WAbstractProxyModel.BaseItem(WModelIndex sourceIndex)
Create a WAbstractProxyModel.BaseItem.

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

sourceIndex_

public WModelIndex sourceIndex_

The source model index.

The source model index for this item.

Constructor Detail

WAbstractProxyModel.BaseItem

public WAbstractProxyModel.BaseItem(WModelIndex sourceIndex)

Create a WAbstractProxyModel.BaseItem.