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/DataPackage.java
*/
	EClass getTextDataSet( );
	/**
	 * Returns the meta object for class '{@link org.eclipse.birt.chart.model.data.Trigger <em>Trigger</em>}'.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @return the meta object for class '<em>Trigger</em>'.
	 * @see org.eclipse.birt.chart.model.data.Trigger
	 * @generated
	 */
	EClass getTrigger( );
	/**
	 * Returns the meta object for the attribute '{@link org.eclipse.birt.chart.model.data.Trigger#getCondition <em>Condition</em>}'.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @return the meta object for the attribute '<em>Condition</em>'.
	 * @see org.eclipse.birt.chart.model.data.Trigger#getCondition()
	 * @see #getTrigger()
	 * @generated
	 */
	EAttribute getTrigger_Condition( );
	/**
	 * Returns the meta object for the containment reference '{@link org.eclipse.birt.chart.model.data.Trigger#getAction <em>Action</em>}'.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @return the meta object for the containment reference '<em>Action</em>'.
	 * @see org.eclipse.birt.chart.model.data.Trigger#getAction()
	 * @see #getTrigger()
	 * @generated
	 */
	EReference getTrigger_Action( );
	/**
	 * Returns the meta object for the attribute '{@link org.eclipse.birt.chart.model.data.Trigger#getTriggerFlow <em>Trigger Flow</em>}'.