Bug 185898 ReportItemHandle needs to add two method: getAvailableDataBindingReferenceList and getDataBindingType.
ReportItemHandle needs to add two method: getAvailableDataBindingReferenceList and getDataBindingType. The first method provider the available ReportItem list of DataBindingReference. The second method provider the type of the DataBinding.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ReportItemHandle.java
* design session.
	 * 
	 * @param dimension
	 *            the new value in application units.
	 * @throws SemanticException
	 *             if the property is locked.
	 */
	public void setHeight( double dimension ) throws SemanticException
	{
		setFloatProperty( IReportItemModel.HEIGHT_PROP, dimension );
	}
	/**
	 * Sets the item's width using a dimension string with optional unit suffix
	 * such as "10" or "10pt". If no suffix is provided, then the units are
	 * assumed to be in the design's default units. Call this method to set a
	 * string typed in by the user.
	 * 
	 * @param dimension
	 *            dimension string with optional unit suffix.
	 * @throws SemanticException
	 *             if the string is not valid
	 */
	public void setWidth( String dimension ) throws SemanticException
	{
		setProperty( IReportItemModel.WIDTH_PROP, dimension );
	}
	/**
	 * Sets the item's width to a value in default units. The default unit may
	 * be defined by the property in BIRT or the application unit defined in the
	 * design session.