Bug 286678 UI model and propagation of context values: containers with variables
bundles/org.eclipse.e4.ui.model.workbench/src/org/eclipse/e4/ui/model/application/MPart.java
/**
	 * Returns the value of the '<em><b>Policy</b></em>' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * The policy would define how the parent displays the children (stack/sashforms)
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Policy</em>' attribute.
	 * @see #setPolicy(String)
	 * @see org.eclipse.e4.ui.model.application.ApplicationPackage#getMPart_Policy()
	 * @model
	 * @generated
	 */
	String getPolicy();
	/**
	 * Sets the value of the '{@link org.eclipse.e4.ui.model.application.MPart#getPolicy <em>Policy</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Policy</em>' attribute.
	 * @see #getPolicy()
	 * @generated
	 */
	void setPolicy(String value);
	/**
	 * Returns the value of the '<em><b>Children</b></em>' containment reference list.
	 * The list contents are of type {@link P}.
	 * It is bidirectional and its opposite is '{@link org.eclipse.e4.ui.model.application.MPart#getParent <em>Parent</em>}'.
	 * <!-- begin-user-doc -->
	 * <p>
	 * If the meaning of the '<em>Children</em>' containment reference list isn't clear,