Bug 212497 Need api to get all referencable report item with cube
Need model provide new api to return all referencable report items for dataset or cube respectively. For instance: getAvailableDataSetBindingReferenceList(); getAvailableCubeBindingReferenceList(); also keep current api: getAvailableDataBindingReferenceList().
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ReportItemHandle.java
*/
	public String getOnPageBreak( )
	{
		return getStringProperty( ON_PAGE_BREAK_METHOD );
	}
	/**
	 * Sets the on-pageBreak script of the report item.
	 * 
	 * @param script
	 *            the script to set
	 * @throws SemanticException
	 *             if the method is locked.
	 * 
	 * @see #getOnPageBreak()
	 */
	public void setOnPageBreak( String script ) throws SemanticException
	{
		setProperty( ON_PAGE_BREAK_METHOD, script );
	}
	/**
	 * Returns the bound columns that binds the data set columns. The item in
	 * the iterator is the corresponding <code>ComputedColumnHandle</code>.
	 * 
	 * @return a list containing the bound columns.
	 */
	public Iterator columnBindingsIterator( )
	{
		PropertyHandle propHandle = getPropertyHandle( BOUND_DATA_COLUMNS_PROP );
		if ( propHandle == null )
			return Collections.EMPTY_LIST.iterator( );