Bug 202254 Exception is thrown when category values are null and type of X axis is set to DateTime
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/model/data/util/DataAdapterFactory.java
* @generated
	 */
	public Adapter createOrthogonalSampleDataAdapter( )
	{
		return null;
	}
	/**
	 * Creates a new adapter for an object of class '{@link org.eclipse.birt.chart.model.data.Query <em>Query</em>}'.
	 * <!-- begin-user-doc --> This default implementation returns null so that we can easily ignore cases; it's useful
	 * to ignore a case when inheritance will catch all the cases anyway. <!-- end-user-doc -->
	 * @return the new adapter.
	 * @see org.eclipse.birt.chart.model.data.Query
	 * @generated
	 */
	public Adapter createQueryAdapter( )
	{
		return null;
	}
	/**
	 * Creates a new adapter for an object of class '{@link org.eclipse.birt.chart.model.data.Rule <em>Rule</em>}'.
	 * <!-- begin-user-doc --> This default implementation returns null so that we can easily ignore cases; it's useful
	 * to ignore a case when inheritance will catch all the cases anyway. <!-- end-user-doc -->
	 * @return the new adapter.
	 * @see org.eclipse.birt.chart.model.data.Rule
	 * @generated
	 */
	public Adapter createRuleAdapter( )
	{
		return null;
	}