Bug 207561 [Regression] Conversion errror when preview the attached report design
data/org.eclipse.birt.report.data.oda.jdbc.ui/src/org/eclipse/birt/report/data/oda/jdbc/ui/editors/SQLDataSetEditorPage.java
{
		if ( b )
		{
			this.schemaCombo.setEnabled( true );
			this.schemaLabel.setEnabled( true );
		}
		else
		{
			this.schemaCombo.removeAll( );
			this.schemaCombo.setEnabled( false );
			this.schemaLabel.setEnabled( false );
		}
	}
	/**
	 * 
	 * @param filterComboViewer
	 */
	private void setFilterComboContents( ComboViewer filterComboViewer )
	{
		if ( filterComboViewer == null )
		{
			return;
		}
		ArrayList dbTypeList = new ArrayList( );
		DbType tableType = new DbType( DbType.TABLE_TYPE,
				JdbcPlugin.getResourceString( "tablepage.text.tabletype" ) );
		DbType viewType = new DbType( DbType.VIEW_TYPE,
				JdbcPlugin.getResourceString( "tablepage.text.viewtype" ) );
		DbType allType = new DbType( DbType.ALL_TYPE,
				JdbcPlugin.getResourceString( "tablepage.text.All" ) );