Bug 177691 Support Date/Time type in BIRT.
We plan to support Date/Time type in BIRT. Please refer to attached document/patch file for necessary info.
model/org.eclipse.birt.report.model.adapter.oda/src/org/eclipse/birt/report/model/adapter/oda/impl/DataSetParameterAdapter.java
return;
		switch ( nullability.getValue( ) )
		{
			case ElementNullability.NULLABLE :
				romParamDefn.setAllowNull( true );
				break;
			case ElementNullability.NOT_NULLABLE :
				romParamDefn.setAllowNull( false );
				break;
			case ElementNullability.UNKNOWN :
				break;
		}
	}
	/**
	 * Creates a ODA InputElementAttributes with the given ROM data set
	 * parameter definition.
	 * 
	 * @param paramDefn
	 *            the ROM data set parameter definition.
	 * 
	 * @return the created <code>DataElementAttributes</code>.
	 */
	private InputElementAttributes newInputElementAttrs(
			DataSetParameterHandle paramDefn,
			InputElementAttributes lastInputAttrs )
	{
		InputElementAttributes inputAttrs = lastInputAttrs;
		if ( inputAttrs == null )
			inputAttrs = ODADesignFactory.getFactory( )
					.createInputElementAttributes( );