Bug 129144 Support suppressDuplicates property on table row in report engine
See 129143 for detail. This only needs to be supported for data item in a detail row of a table.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/ir/DataItemDesign.java
*/
	public DataItemDesign( )
	{
	}
	/**
	 * get the value expression
	 * 
	 * @return value expression
	 */
	public Expression getValue( )
	{
		return this.value;
	}
	/**
	 * set the value expression
	 * 
	 * @param value
	 *            value expression
	 */
	public void setValue( Expression value )
	{
		this.value = value;
	}
	public Object accept( IReportItemVisitor visitor, Object value )
	{
		return visitor.visitDataItem( this , value);
	}
	/**
	 * set the help info.
	 *