Bug 166029 Help context displays only the first time in data set query editor[0703]
Help context displays only the first time in data set query editor Build number: 2.2.0.v20061128-0824 Steps to reproduce: 1.new a report 2.new a JDBC data source: Driver:jdbc:oracle:thin:@spmdb:1521:test Database URL:jdbc:oracle:thin:@spmdb:1521:test user:root,password:root 3.new a set using above data source,in data set query input "select * from" 4.then input "CORDER.",then help context list displays 5.then delete the query and reinput "select * from CORDER." Expected result: help context list will be displayed whenever you input Actual result: Help context list was displayed in the first time and after that nothing is displayed. Error log: N/A
data/org.eclipse.birt.report.data.oda.jdbc.ui/src/org/eclipse/birt/report/data/oda/jdbc/ui/editors/SQLDataSetEditorPage.java
{
	
	private Image schemaImage, tableImage, viewImage, dataBaseImage,
			columnImage;
	
	private Document doc = null;
	private SourceViewer viewer = null;
	private TreeItem rootNode = null;
	private Text searchTxt = null;
	private ComboViewer filterComboViewer = null;
	private Combo schemaCombo = null;
	private Label schemaLabel = null;
	private Tree availableDbObjectsTree = null;
	private Button identifierQuoteStringCheckBox = null;
	private TreeItem[] selectionMac = null;
	private boolean isSchemaSupported = false;
	private boolean expandDbObjectsTree = false;
	private IMetaDataProvider metaDataProvider = null;
	private JdbcSQLSourceViewerConfiguration sourceViewerConfiguration = null;
	private String cachedSearchTxt = "";
	private String formerQueryTxt = "";
	private String cachedDbType = "";
	private int cachedSchemaComboIndex = -1;
	private DataSourceDesign prevDataSourceDesign;
	private DataSetDesign dataSetDesign;
	
	protected ArrayList schemaList;
	 
	protected ArrayList tableList;