/*
 * Copyright (c) 2005, 2006 IBM Corporation and others.
 * All rights reserved.   This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *   IBM - initial API and implementation
 *
 * $Id: State.java,v 1.16 2006/12/14 15:49:27 khussey Exp $
 */
package org.eclipse.uml2.uml;

import java.util.Map;

import org.eclipse.emf.common.util.DiagnosticChain;

import org.eclipse.emf.common.util.EList;

import org.eclipse.emf.ecore.EClass;

/**
 * <!-- begin-user-doc -->
 * A representation of the model object '<em><b>State</b></em>'.
 * <!-- end-user-doc -->
 *
 * <!-- begin-model-doc -->
 * A state models a situation during which some (usually implicit) invariant condition holds.
 * The states of protocol state machines are exposed to the users of their context classifiers. A protocol state represents an exposed stable situation of its context classifier: when an instance of the classifier is not processing any operation, users of this instance can always know its state configuration.
 * <!-- end-model-doc -->
 *
 * <p>
 * The following features are supported:
 * <ul>
 *   <li>{@link org.eclipse.uml2.uml.State#isComposite <em>Is Composite</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.State#isOrthogonal <em>Is Orthogonal</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.State#isSimple <em>Is Simple</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.State#isSubmachineState <em>Is Submachine State</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.State#getSubmachine <em>Submachine</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.State#getConnections <em>Connection</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.State#getConnectionPoints <em>Connection Point</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.State#getRedefinedState <em>Redefined State</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.State#getStateInvariant <em>State Invariant</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.State#getEntry <em>Entry</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.State#getExit <em>Exit</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.State#getDoActivity <em>Do Activity</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.State#getDeferrableTriggers <em>Deferrable Trigger</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.State#getRegions <em>Region</em>}</li>
 * </ul>
 * </p>
 *
 * @see org.eclipse.uml2.uml.UMLPackage#getState()
 * @model
 * @generated
 */
public interface State
		extends Namespace, RedefinableElement, Vertex {

	/**
	 * Returns the value of the '<em><b>Is Composite</b></em>' attribute.
	 * The default value is <code>"false"</code>.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * A state with isComposite=true is said to be a composite state. A composite state is a state that contains at least one region.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Is Composite</em>' attribute.
	 * @see org.eclipse.uml2.uml.UMLPackage#getState_IsComposite()
	 * @model default="false" dataType="org.eclipse.uml2.uml.Boolean" required="true" transient="true" changeable="false" volatile="true" derived="true" ordered="false"
	 * @generated
	 */
	boolean isComposite();

	/**
	 * Returns the value of the '<em><b>Is Orthogonal</b></em>' attribute.
	 * The default value is <code>"false"</code>.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * A state with isOrthogonal=true is said to be an orthogonal composite state. An orthogonal composite state contains two or more regions.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Is Orthogonal</em>' attribute.
	 * @see org.eclipse.uml2.uml.UMLPackage#getState_IsOrthogonal()
	 * @model default="false" dataType="org.eclipse.uml2.uml.Boolean" required="true" transient="true" changeable="false" volatile="true" derived="true" ordered="false"
	 * @generated
	 */
	boolean isOrthogonal();

	/**
	 * Returns the value of the '<em><b>Is Simple</b></em>' attribute.
	 * The default value is <code>"true"</code>.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * A state with isSimple=true is said to be a simple state. A simple state does not have any regions and it does not refer to any submachine state machine.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Is Simple</em>' attribute.
	 * @see org.eclipse.uml2.uml.UMLPackage#getState_IsSimple()
	 * @model default="true" dataType="org.eclipse.uml2.uml.Boolean" required="true" transient="true" changeable="false" volatile="true" derived="true" ordered="false"
	 * @generated
	 */
	boolean isSimple();

	/**
	 * Returns the value of the '<em><b>Is Submachine State</b></em>' attribute.
	 * The default value is <code>"false"</code>.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * A state with isSubmachineState=true is said to be a submachine state. Such a state refers to a state machine (submachine).
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Is Submachine State</em>' attribute.
	 * @see org.eclipse.uml2.uml.UMLPackage#getState_IsSubmachineState()
	 * @model default="false" dataType="org.eclipse.uml2.uml.Boolean" required="true" transient="true" changeable="false" volatile="true" derived="true" ordered="false"
	 * @generated
	 */
	boolean isSubmachineState();

	/**
	 * Returns the value of the '<em><b>Submachine</b></em>' reference.
	 * It is bidirectional and its opposite is '{@link org.eclipse.uml2.uml.StateMachine#getSubmachineStates <em>Submachine State</em>}'.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * The state machine that is to be inserted in place of the (submachine) state.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Submachine</em>' reference.
	 * @see #setSubmachine(StateMachine)
	 * @see org.eclipse.uml2.uml.UMLPackage#getState_Submachine()
	 * @see org.eclipse.uml2.uml.StateMachine#getSubmachineStates
	 * @model opposite="submachineState" ordered="false"
	 * @generated
	 */
	StateMachine getSubmachine();

	/**
	 * Sets the value of the '{@link org.eclipse.uml2.uml.State#getSubmachine <em>Submachine</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Submachine</em>' reference.
	 * @see #getSubmachine()
	 * @generated
	 */
	void setSubmachine(StateMachine value);

	/**
	 * Returns the value of the '<em><b>Connection</b></em>' containment reference list.
	 * The list contents are of type {@link org.eclipse.uml2.uml.ConnectionPointReference}.
	 * It is bidirectional and its opposite is '{@link org.eclipse.uml2.uml.ConnectionPointReference#getState <em>State</em>}'.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * The entry and exit connection points used in conjunction with this (submachine) state, i.e. as targets and sources, respectively, in the region with the submachine state. A connection point reference references the corresponding definition of a connection point pseudostate in the statemachine referenced by the submachinestate.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Connection</em>' containment reference list.
	 * @see org.eclipse.uml2.uml.UMLPackage#getState_Connection()
	 * @see org.eclipse.uml2.uml.ConnectionPointReference#getState
	 * @model type="org.eclipse.uml2.uml.ConnectionPointReference" opposite="state" containment="true" resolveProxies="true" ordered="false"
	 * @generated
	 */
	EList<ConnectionPointReference> getConnections();

	/**
	 * Creates a new {@link org.eclipse.uml2.uml.ConnectionPointReference}, with the specified '<em><b>Name</b></em>', and appends it to the '<em><b>Connection</b></em>' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' for the new {@link org.eclipse.uml2.uml.ConnectionPointReference}, or <code>null</code>.
	 * @return The new {@link org.eclipse.uml2.uml.ConnectionPointReference}.
	 * @see #getConnections()
	 * @generated
	 */
	ConnectionPointReference createConnection(String name);

	/**
	 * Retrieves the first {@link org.eclipse.uml2.uml.ConnectionPointReference} with the specified '<em><b>Name</b></em>' from the '<em><b>Connection</b></em>' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' of the {@link org.eclipse.uml2.uml.ConnectionPointReference} to retrieve, or <code>null</code>.
	 * @return The first {@link org.eclipse.uml2.uml.ConnectionPointReference} with the specified '<em><b>Name</b></em>', or <code>null</code>.
	 * @see #getConnections()
	 * @generated
	 */
	ConnectionPointReference getConnection(String name);

	/**
	 * Retrieves the first {@link org.eclipse.uml2.uml.ConnectionPointReference} with the specified '<em><b>Name</b></em>' from the '<em><b>Connection</b></em>' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' of the {@link org.eclipse.uml2.uml.ConnectionPointReference} to retrieve, or <code>null</code>.
	 * @param ignoreCase Whether to ignore case in {@link java.lang.String} comparisons.
	 * @param createOnDemand Whether to create a {@link org.eclipse.uml2.uml.ConnectionPointReference} on demand if not found.
	 * @return The first {@link org.eclipse.uml2.uml.ConnectionPointReference} with the specified '<em><b>Name</b></em>', or <code>null</code>.
	 * @see #getConnections()
	 * @generated
	 */
	ConnectionPointReference getConnection(String name, boolean ignoreCase,
			boolean createOnDemand);

	/**
	 * Returns the value of the '<em><b>Connection Point</b></em>' containment reference list.
	 * The list contents are of type {@link org.eclipse.uml2.uml.Pseudostate}.
	 * It is bidirectional and its opposite is '{@link org.eclipse.uml2.uml.Pseudostate#getState <em>State</em>}'.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * The entry and exit pseudostates of a composite state. These can only be entry or exit Pseudostates, and they must have different names. They can only be defined for composite states.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Connection Point</em>' containment reference list.
	 * @see org.eclipse.uml2.uml.UMLPackage#getState_ConnectionPoint()
	 * @see org.eclipse.uml2.uml.Pseudostate#getState
	 * @model type="org.eclipse.uml2.uml.Pseudostate" opposite="state" containment="true" resolveProxies="true" ordered="false"
	 * @generated
	 */
	EList<Pseudostate> getConnectionPoints();

	/**
	 * Creates a new {@link org.eclipse.uml2.uml.Pseudostate}, with the specified '<em><b>Name</b></em>', and appends it to the '<em><b>Connection Point</b></em>' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' for the new {@link org.eclipse.uml2.uml.Pseudostate}, or <code>null</code>.
	 * @return The new {@link org.eclipse.uml2.uml.Pseudostate}.
	 * @see #getConnectionPoints()
	 * @generated
	 */
	Pseudostate createConnectionPoint(String name);

	/**
	 * Retrieves the first {@link org.eclipse.uml2.uml.Pseudostate} with the specified '<em><b>Name</b></em>' from the '<em><b>Connection Point</b></em>' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' of the {@link org.eclipse.uml2.uml.Pseudostate} to retrieve, or <code>null</code>.
	 * @return The first {@link org.eclipse.uml2.uml.Pseudostate} with the specified '<em><b>Name</b></em>', or <code>null</code>.
	 * @see #getConnectionPoints()
	 * @generated
	 */
	Pseudostate getConnectionPoint(String name);

	/**
	 * Retrieves the first {@link org.eclipse.uml2.uml.Pseudostate} with the specified '<em><b>Name</b></em>' from the '<em><b>Connection Point</b></em>' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' of the {@link org.eclipse.uml2.uml.Pseudostate} to retrieve, or <code>null</code>.
	 * @param ignoreCase Whether to ignore case in {@link java.lang.String} comparisons.
	 * @param createOnDemand Whether to create a {@link org.eclipse.uml2.uml.Pseudostate} on demand if not found.
	 * @return The first {@link org.eclipse.uml2.uml.Pseudostate} with the specified '<em><b>Name</b></em>', or <code>null</code>.
	 * @see #getConnectionPoints()
	 * @generated
	 */
	Pseudostate getConnectionPoint(String name, boolean ignoreCase,
			boolean createOnDemand);

	/**
	 * Returns the value of the '<em><b>Redefined State</b></em>' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * The state of which this state is a redefinition.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Redefined State</em>' reference.
	 * @see #setRedefinedState(State)
	 * @see org.eclipse.uml2.uml.UMLPackage#getState_RedefinedState()
	 * @model ordered="false"
	 * @generated
	 */
	State getRedefinedState();

	/**
	 * Sets the value of the '{@link org.eclipse.uml2.uml.State#getRedefinedState <em>Redefined State</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Redefined State</em>' reference.
	 * @see #getRedefinedState()
	 * @generated
	 */
	void setRedefinedState(State value);

	/**
	 * Returns the value of the '<em><b>State Invariant</b></em>' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * Specifies conditions that are always true when this state is the current state. In protocol state machines, state invariants are additional conditions to the preconditions of the outgoing transitions, and to the postcondition of the incoming transitions.
	 * 
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>State Invariant</em>' containment reference.
	 * @see #setStateInvariant(Constraint)
	 * @see org.eclipse.uml2.uml.UMLPackage#getState_StateInvariant()
	 * @model containment="true" resolveProxies="true" ordered="false"
	 * @generated
	 */
	Constraint getStateInvariant();

	/**
	 * Sets the value of the '{@link org.eclipse.uml2.uml.State#getStateInvariant <em>State Invariant</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>State Invariant</em>' containment reference.
	 * @see #getStateInvariant()
	 * @generated
	 */
	void setStateInvariant(Constraint value);

	/**
	 * Creates a new {@link org.eclipse.uml2.uml.Constraint}, with the specified '<em><b>Name</b></em>', and sets the '<em><b>State Invariant</b></em>' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' for the new {@link org.eclipse.uml2.uml.Constraint}, or <code>null</code>.
	 * @param eClass The Ecore class of the {@link org.eclipse.uml2.uml.Constraint} to create.
	 * @return The new {@link org.eclipse.uml2.uml.Constraint}.
	 * @see #getStateInvariant()
	 * @generated
	 */
	Constraint createStateInvariant(String name, EClass eClass);

	/**
	 * Creates a new {@link org.eclipse.uml2.uml.Constraint},with the specified '<em><b>Name</b></em>', and sets the '<em><b>State Invariant</b></em>' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' for the new {@link org.eclipse.uml2.uml.Constraint}, or <code>null</code>.
	 * @return The new {@link org.eclipse.uml2.uml.Constraint}.
	 * @see #getStateInvariant()
	 * @generated
	 */
	Constraint createStateInvariant(String name);

	/**
	 * Returns the value of the '<em><b>Entry</b></em>' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * An optional behavior that is executed whenever this state is entered regardless of the transition taken to reach the state. If defined, entry actions are always executed to completion prior to any internal behavior or transitions performed within the state.
	 * 
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Entry</em>' containment reference.
	 * @see #setEntry(Behavior)
	 * @see org.eclipse.uml2.uml.UMLPackage#getState_Entry()
	 * @model containment="true" resolveProxies="true" ordered="false"
	 * @generated
	 */
	Behavior getEntry();

	/**
	 * Sets the value of the '{@link org.eclipse.uml2.uml.State#getEntry <em>Entry</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Entry</em>' containment reference.
	 * @see #getEntry()
	 * @generated
	 */
	void setEntry(Behavior value);

	/**
	 * Creates a new {@link org.eclipse.uml2.uml.Behavior}, with the specified '<em><b>Name</b></em>', and sets the '<em><b>Entry</b></em>' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' for the new {@link org.eclipse.uml2.uml.Behavior}, or <code>null</code>.
	 * @param eClass The Ecore class of the {@link org.eclipse.uml2.uml.Behavior} to create.
	 * @return The new {@link org.eclipse.uml2.uml.Behavior}.
	 * @see #getEntry()
	 * @generated
	 */
	Behavior createEntry(String name, EClass eClass);

	/**
	 * Returns the value of the '<em><b>Exit</b></em>' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * An optional behavior that is executed whenever this state is exited regardless of which transition was taken out of the state. If defined, exit actions are always executed to completion only after all internal activities and transition actions have completed execution.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Exit</em>' containment reference.
	 * @see #setExit(Behavior)
	 * @see org.eclipse.uml2.uml.UMLPackage#getState_Exit()
	 * @model containment="true" resolveProxies="true" ordered="false"
	 * @generated
	 */
	Behavior getExit();

	/**
	 * Sets the value of the '{@link org.eclipse.uml2.uml.State#getExit <em>Exit</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Exit</em>' containment reference.
	 * @see #getExit()
	 * @generated
	 */
	void setExit(Behavior value);

	/**
	 * Creates a new {@link org.eclipse.uml2.uml.Behavior}, with the specified '<em><b>Name</b></em>', and sets the '<em><b>Exit</b></em>' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' for the new {@link org.eclipse.uml2.uml.Behavior}, or <code>null</code>.
	 * @param eClass The Ecore class of the {@link org.eclipse.uml2.uml.Behavior} to create.
	 * @return The new {@link org.eclipse.uml2.uml.Behavior}.
	 * @see #getExit()
	 * @generated
	 */
	Behavior createExit(String name, EClass eClass);

	/**
	 * Returns the value of the '<em><b>Do Activity</b></em>' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * An optional behavior that is executed while being in the state. The execution starts when this state is entered, and stops either by itself, or when the state is exited, whichever comes first.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Do Activity</em>' containment reference.
	 * @see #setDoActivity(Behavior)
	 * @see org.eclipse.uml2.uml.UMLPackage#getState_DoActivity()
	 * @model containment="true" resolveProxies="true" ordered="false"
	 * @generated
	 */
	Behavior getDoActivity();

	/**
	 * Sets the value of the '{@link org.eclipse.uml2.uml.State#getDoActivity <em>Do Activity</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Do Activity</em>' containment reference.
	 * @see #getDoActivity()
	 * @generated
	 */
	void setDoActivity(Behavior value);

	/**
	 * Creates a new {@link org.eclipse.uml2.uml.Behavior}, with the specified '<em><b>Name</b></em>', and sets the '<em><b>Do Activity</b></em>' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' for the new {@link org.eclipse.uml2.uml.Behavior}, or <code>null</code>.
	 * @param eClass The Ecore class of the {@link org.eclipse.uml2.uml.Behavior} to create.
	 * @return The new {@link org.eclipse.uml2.uml.Behavior}.
	 * @see #getDoActivity()
	 * @generated
	 */
	Behavior createDoActivity(String name, EClass eClass);

	/**
	 * Returns the value of the '<em><b>Deferrable Trigger</b></em>' containment reference list.
	 * The list contents are of type {@link org.eclipse.uml2.uml.Trigger}.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * A list of triggers that are candidates to be retained by the state machine if they trigger no transitions out of the state (not consumed). A deferred trigger is retained until the state machine reaches a state configuration where it is no longer deferred.
	 * 
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Deferrable Trigger</em>' containment reference list.
	 * @see org.eclipse.uml2.uml.UMLPackage#getState_DeferrableTrigger()
	 * @model type="org.eclipse.uml2.uml.Trigger" containment="true" resolveProxies="true" ordered="false"
	 * @generated
	 */
	EList<Trigger> getDeferrableTriggers();

	/**
	 * Creates a new {@link org.eclipse.uml2.uml.Trigger}, with the specified '<em><b>Name</b></em>', and appends it to the '<em><b>Deferrable Trigger</b></em>' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' for the new {@link org.eclipse.uml2.uml.Trigger}, or <code>null</code>.
	 * @return The new {@link org.eclipse.uml2.uml.Trigger}.
	 * @see #getDeferrableTriggers()
	 * @generated
	 */
	Trigger createDeferrableTrigger(String name);

	/**
	 * Retrieves the first {@link org.eclipse.uml2.uml.Trigger} with the specified '<em><b>Name</b></em>' from the '<em><b>Deferrable Trigger</b></em>' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' of the {@link org.eclipse.uml2.uml.Trigger} to retrieve, or <code>null</code>.
	 * @return The first {@link org.eclipse.uml2.uml.Trigger} with the specified '<em><b>Name</b></em>', or <code>null</code>.
	 * @see #getDeferrableTriggers()
	 * @generated
	 */
	Trigger getDeferrableTrigger(String name);

	/**
	 * Retrieves the first {@link org.eclipse.uml2.uml.Trigger} with the specified '<em><b>Name</b></em>' from the '<em><b>Deferrable Trigger</b></em>' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' of the {@link org.eclipse.uml2.uml.Trigger} to retrieve, or <code>null</code>.
	 * @param ignoreCase Whether to ignore case in {@link java.lang.String} comparisons.
	 * @param createOnDemand Whether to create a {@link org.eclipse.uml2.uml.Trigger} on demand if not found.
	 * @return The first {@link org.eclipse.uml2.uml.Trigger} with the specified '<em><b>Name</b></em>', or <code>null</code>.
	 * @see #getDeferrableTriggers()
	 * @generated
	 */
	Trigger getDeferrableTrigger(String name, boolean ignoreCase,
			boolean createOnDemand);

	/**
	 * Returns the value of the '<em><b>Region</b></em>' containment reference list.
	 * The list contents are of type {@link org.eclipse.uml2.uml.Region}.
	 * It is bidirectional and its opposite is '{@link org.eclipse.uml2.uml.Region#getState <em>State</em>}'.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * The regions owned directly by the state.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Region</em>' containment reference list.
	 * @see org.eclipse.uml2.uml.UMLPackage#getState_Region()
	 * @see org.eclipse.uml2.uml.Region#getState
	 * @model type="org.eclipse.uml2.uml.Region" opposite="state" containment="true" resolveProxies="true" ordered="false"
	 * @generated
	 */
	EList<Region> getRegions();

	/**
	 * Creates a new {@link org.eclipse.uml2.uml.Region}, with the specified '<em><b>Name</b></em>', and appends it to the '<em><b>Region</b></em>' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' for the new {@link org.eclipse.uml2.uml.Region}, or <code>null</code>.
	 * @return The new {@link org.eclipse.uml2.uml.Region}.
	 * @see #getRegions()
	 * @generated
	 */
	Region createRegion(String name);

	/**
	 * Retrieves the first {@link org.eclipse.uml2.uml.Region} with the specified '<em><b>Name</b></em>' from the '<em><b>Region</b></em>' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' of the {@link org.eclipse.uml2.uml.Region} to retrieve, or <code>null</code>.
	 * @return The first {@link org.eclipse.uml2.uml.Region} with the specified '<em><b>Name</b></em>', or <code>null</code>.
	 * @see #getRegions()
	 * @generated
	 */
	Region getRegion(String name);

	/**
	 * Retrieves the first {@link org.eclipse.uml2.uml.Region} with the specified '<em><b>Name</b></em>' from the '<em><b>Region</b></em>' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' of the {@link org.eclipse.uml2.uml.Region} to retrieve, or <code>null</code>.
	 * @param ignoreCase Whether to ignore case in {@link java.lang.String} comparisons.
	 * @param createOnDemand Whether to create a {@link org.eclipse.uml2.uml.Region} on demand if not found.
	 * @return The first {@link org.eclipse.uml2.uml.Region} with the specified '<em><b>Name</b></em>', or <code>null</code>.
	 * @see #getRegions()
	 * @generated
	 */
	Region getRegion(String name, boolean ignoreCase, boolean createOnDemand);

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * Only submachine states can have connection point references.
	 * isSubmachineState implies connection->notEmpty ( )
	 * <!-- end-model-doc -->
	 * @model
	 * @generated
	 */
	boolean validateSubmachineStates(DiagnosticChain diagnostics,
			Map<Object, Object> context);

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * The connection point references used as destinations/sources of transitions associated with a submachine state must be defined as entry/exit points in the submachine state machine.
	 * self.isSubmachineState implies (self.connection->forAll (cp |
	 * cp.entry->forAll (p | p.statemachine = self.submachine) and
	 * cp.exit->forAll (p | p.statemachine = self.submachine)))
	 * <!-- end-model-doc -->
	 * @model
	 * @generated
	 */
	boolean validateDestinationsOrSourcesOfTransitions(
			DiagnosticChain diagnostics, Map<Object, Object> context);

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * A state is not allowed to have both a submachine and regions.
	 * isComposite implies not isSubmachineState
	 * <!-- end-model-doc -->
	 * @model
	 * @generated
	 */
	boolean validateSubmachineOrRegions(DiagnosticChain diagnostics,
			Map<Object, Object> context);

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * Only composite states can have entry or exit pseudostates defined.
	 * connectionPoint->notEmpty() implies isComoposite
	 * <!-- end-model-doc -->
	 * @model
	 * @generated
	 */
	boolean validateCompositeStates(DiagnosticChain diagnostics,
			Map<Object, Object> context);

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * Only entry or exit pseudostates can serve as connection points.
	 * connectionPoint->forAll(cp|cp.kind = #entry or cp.kind = #exit)
	 * <!-- end-model-doc -->
	 * @model
	 * @generated
	 */
	boolean validateEntryOrExit(DiagnosticChain diagnostics,
			Map<Object, Object> context);

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * The redefinition context of a state is the nearest containing statemachine.
	 * result = let sm = containingStateMachine() in
	 * if sm.context->isEmpty() or sm.general->notEmpty() then
	 * sm
	 * else
	 * sm.context
	 * endif
	 * <!-- end-model-doc -->
	 * @model required="true" ordered="false"
	 * @generated
	 */
	Classifier redefinitionContext();

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * The query isRedefinitionContextValid() specifies whether the redefinition contexts of a state are properly related to the redefinition contexts of the specified state to allow this element to redefine the other. The containing region of a redefining state must redefine the containing region of the redefined state.
	 * result = true
	 * <!-- end-model-doc -->
	 * @model dataType="org.eclipse.uml2.uml.Boolean" required="true" ordered="false" redefinedRequired="true" redefinedOrdered="false"
	 * @generated
	 */
	boolean isRedefinitionContextValid(State redefined);

} // State