Bug 161383 Support page-break-inside property on report item
Need support page-break-inside property on report items
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/metadata/ElementDefn.java
* 
	 * @return The name of the base element, if any.
	 */
	public String getExtends( )
	{
		return extendsFrom;
	}
	/**
	 * Gets the java class of this element.
	 * 
	 * @return The java class of this element.
	 */
	public String getJavaClass( )
	{
		return javaClass;
	}
	/**
	 * Indicates if this element has a style.
	 * 
	 * @return Returns whether the element has a style.
	 */
	public boolean hasStyle( )
	{
		return hasStyle;
	}
	/**
	 * Sets whether the element has style properties.
	 * 
	 * @param flag
	 *            True if this element supports style properties, false if not.