Bug 141709 The Interface "IScalarParameterModel" should provide a "TEXT_ID_PROP" member.
In order to provide the "Localization" function in Property Editor of Parameter, it requires to implement a "ScalarParameterI18nPage" Class similar to the Class of "LabelI18nPage", and it consequently needs to "IScalarParameterModel" provide a "TEXT_ID_PROP" member for "ScalarParameterHandle" Class.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ScalarParameterHandle.java
*             if the property is locked.
	 */
	public void setFixedOrder( boolean fixedOrder ) throws SemanticException
	{
		setProperty( ScalarParameter.FIXED_ORDER_PROP, Boolean
				.valueOf( fixedOrder ) );
	}
	/**
	 * Returns the iterator for the static selection list defined on this scalar
	 * parameter. Each element in the iterator is the an instance of
	 * <code>SelectionChoiceHandle</code>.
	 * 
	 * @return the iterator for selection list defined on this scalar parameter.
	 * 
	 * @see org.eclipse.birt.report.model.api.elements.structures.SelectionChoice
	 */
	public Iterator choiceIterator( )
	{
		PropertyHandle propHandle = getPropertyHandle( ScalarParameter.SELECTION_LIST_PROP );
		return propHandle.iterator( );
	}
	/**
	 * Returns the data set name of the dynamic list for this parameter.
	 * 
	 * @return the data set name of the dynamic list
	 */
	public String getDataSetName( )
	{
		return getStringProperty( ScalarParameter.DATASET_NAME_PROP );
	}