Bug 124629 Use Top/Bottom n in a field containing null value inside will cause DataException.
Description: Use Top/Bottom n in a field containing null value inside will cause DataException. Steps to reproduce: 1. New a data source and dataset 2. Add a filter on a field, set operator to top 5 3. Click Preview Result. Result: A BIRT exception occurred. Plug-in Provider:Eclipse.org Plug-in Name:BIRT Data Engine Plug-in ID:org.eclipse.birt.data Version:2.0.0 Error Code:data.engine.DataConversionError Error Message:An error happened in data type conversion. Can not convert the value of {NULL_VALUE_!@#$%^&} to Double type.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/i18n/ResourceConstants.java
/*******************************************************************************
 * Copyright (c) 2004 Actuate Corporation.
 * 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:
 *  Actuate Corporation  - initial API and implementation
 *******************************************************************************/
package org.eclipse.birt.data.engine.i18n;
/**
 * Define resource key constants for need be localized resource.
 */
public class ResourceConstants
{
	public final static String UNDEFINED_DATA_SOURCE = "data.engine.UndefinedDataSource";
	public final static String UNDEFINED_DATA_SET = "data.engine.UndefinedDataSet";
	public final static String UNSUPPORTED_DATASOURCE_TYPE = "data.engine.UnsupportedDataSourceType";
	public final static String UNSUPPORTED_DATASET_TYPE = "data.engine.UnsupportedDataSetType";
	public final static String UNSUPPORTED_GROUP_ON_BLOBAndCLOB ="data.engine.UnsupportedGroupOnClobAndBLOB";
	public final static String UNSUPPORTED_SORT_ON_BLOBAndCLOB ="data.engine.UnsupportedSortOnClobAndBLOB";