Bug 200286 [Regression] Data set editor size is not correct [07]
data/org.eclipse.birt.report.data.oda.jdbc.ui/src/org/eclipse/birt/report/data/oda/jdbc/ui/editors/SQLDataSetEditorPage.java
/**
	 * return the query text. If the query text is empty then return the
	 * pre-defined pattern
	 * 
	 * @return
	 */
	private String getQueryText( )
	{
		String queryText = this.getDataSetDesign( ).getQueryText( );
		if ( queryText != null && queryText.trim( ).length( ) > 0 )
			return queryText;
		return SQLUtility.getQueryPresetTextString( this.getDataSetDesign( )
				.getOdaExtensionDataSetId( ) );
	}
	/*
	 * (non-Javadoc)
	 * @see org.eclipse.datatools.connectivity.oda.design.ui.wizards.DataSetWizardPage#cleanup()
	 */
	protected void cleanup( )
	{
		if ( metaDataProvider != null )
		{
			metaDataProvider.closeConnection( );
		}
	}
	/**
	 * Whether should the DatabaseObjectTree should be expanded.
	 * 
	 * @param expand True if the expanding is expected. Otherwise false.
	 */