Bug 188027 PasteAction is diabled
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/Module.java
* @param obj
	 *            the object
	 * @param lineNo
	 *            the line number
	 */
	public void addLineNo( Object obj, Integer lineNo )
	{
		if ( lineNoInfo == null )
			return;
		lineNoInfo.put( obj, lineNo );
	}
	/**
	 * Returns the undo/redo stack for this module.
	 * 
	 * @return The "command" stack.
	 */
	public ActivityStack getActivityStack( )
	{
		return activityStack;
	}
	/**
	 * Preprares to save this module. Sets the modification date.
	 */
	public void prepareToSave( )
	{
		if ( options != null )
		{
			String createdBy = (String) options.getProperty( ModuleOption.CREATED_BY_KEY );
			if ( createdBy != null )
				setProperty( Module.CREATED_BY_PROP, createdBy );