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/*******************************************************************************
* Copyright (c) 2006 Sybase, Inc. and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http:// www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.pagedesigner.jsf.ui.elementedit.util;
import org.eclipse.jst.jsf.core.internal.tld.IJSFConstants;
import org.eclipse.jst.pagedesigner.jsf.core.dom.JSFDOMUtil;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
* @author mengbo
* @version 1.5
*/
public class DataTableUtil
{
private static final int INVALID_POSITION = -10;
private Element _dataTable = null;
/**
* @param dataTable
*/
public DataTableUtil(Element dataTable)
{
this._dataTable = dataTable;
}
/**
* @param column
* @return the column index for column
*/
public int getColumnIndex(Element column)
{
NodeList nodeList = this._dataTable.getElementsByTagName("h:column");
if (nodeList != null)
{
for (int i = 0, size = nodeList.getLength(); i < size; i++)
{
if (column == (Element) nodeList.item(i))
{
return i;
}
}
}
return INVALID_POSITION;
}
/**
* @param child
* @return the hcolumn parent of child or null if not found
*/
public Element findHColumnParent(Node child)
{
if (child == null)
{
return null;
}
Node childBackup = child;
boolean hasHColumnParent = false;
if (JSFDOMUtil.isHColumn(child))
{
return (Element) child;
}
while (!IJSFConstants.TAG_DATATABLE.equalsIgnoreCase(childBackup.getParentNode().getLocalName()))
{
childBackup = childBackup.getParentNode();
String tagName = childBackup.getLocalName();
if (IJSFConstants.TAG_COLUMN.equalsIgnoreCase(tagName))
{
hasHColumnParent = true;
break;
}
}
if (hasHColumnParent)
{
return (Element) childBackup;
}
return null;
}
}
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