/**
 * Copyright (c) 2020 CEA LIST.
 * 
 * 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\n\nContributors:
 *  Arnault Lapitre (CEA LIST) arnault.lapitre@cea.fr
 *  - Initial API and Implementation
 */
package org.eclipse.efm.ecore.formalml.statement.impl;

import org.eclipse.efm.ecore.formalml.expression.Expression;

import org.eclipse.efm.ecore.formalml.statement.ObserverStatement;
import org.eclipse.efm.ecore.formalml.statement.Statement;
import org.eclipse.efm.ecore.formalml.statement.StatementPackage;

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.NotificationChain;

import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.InternalEObject;

import org.eclipse.emf.ecore.impl.ENotificationImpl;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Observer Statement</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * </p>
 * <ul>
 *   <li>{@link org.eclipse.efm.ecore.formalml.statement.impl.ObserverStatementImpl#getContext <em>Context</em>}</li>
 *   <li>{@link org.eclipse.efm.ecore.formalml.statement.impl.ObserverStatementImpl#getStatement <em>Statement</em>}</li>
 *   <li>{@link org.eclipse.efm.ecore.formalml.statement.impl.ObserverStatementImpl#getPostCondition <em>Post Condition</em>}</li>
 * </ul>
 *
 * @generated
 */
public class ObserverStatementImpl extends StatementImpl implements ObserverStatement {
	/**
	 * The cached value of the '{@link #getContext() <em>Context</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getContext()
	 * @generated
	 * @ordered
	 */
	protected Expression context;

	/**
	 * The cached value of the '{@link #getStatement() <em>Statement</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getStatement()
	 * @generated
	 * @ordered
	 */
	protected Statement statement;

	/**
	 * The cached value of the '{@link #getPostCondition() <em>Post Condition</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getPostCondition()
	 * @generated
	 * @ordered
	 */
	protected Expression postCondition;

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected ObserverStatementImpl() {
		super();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	protected EClass eStaticClass() {
		return StatementPackage.Literals.OBSERVER_STATEMENT;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Expression getContext() {
		return context;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetContext(Expression newContext, NotificationChain msgs) {
		Expression oldContext = context;
		context = newContext;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, StatementPackage.OBSERVER_STATEMENT__CONTEXT, oldContext, newContext);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void setContext(Expression newContext) {
		if (newContext != context) {
			NotificationChain msgs = null;
			if (context != null)
				msgs = ((InternalEObject)context).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - StatementPackage.OBSERVER_STATEMENT__CONTEXT, null, msgs);
			if (newContext != null)
				msgs = ((InternalEObject)newContext).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - StatementPackage.OBSERVER_STATEMENT__CONTEXT, null, msgs);
			msgs = basicSetContext(newContext, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, StatementPackage.OBSERVER_STATEMENT__CONTEXT, newContext, newContext));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Statement getStatement() {
		return statement;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetStatement(Statement newStatement, NotificationChain msgs) {
		Statement oldStatement = statement;
		statement = newStatement;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, StatementPackage.OBSERVER_STATEMENT__STATEMENT, oldStatement, newStatement);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void setStatement(Statement newStatement) {
		if (newStatement != statement) {
			NotificationChain msgs = null;
			if (statement != null)
				msgs = ((InternalEObject)statement).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - StatementPackage.OBSERVER_STATEMENT__STATEMENT, null, msgs);
			if (newStatement != null)
				msgs = ((InternalEObject)newStatement).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - StatementPackage.OBSERVER_STATEMENT__STATEMENT, null, msgs);
			msgs = basicSetStatement(newStatement, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, StatementPackage.OBSERVER_STATEMENT__STATEMENT, newStatement, newStatement));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Expression getPostCondition() {
		return postCondition;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetPostCondition(Expression newPostCondition, NotificationChain msgs) {
		Expression oldPostCondition = postCondition;
		postCondition = newPostCondition;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, StatementPackage.OBSERVER_STATEMENT__POST_CONDITION, oldPostCondition, newPostCondition);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void setPostCondition(Expression newPostCondition) {
		if (newPostCondition != postCondition) {
			NotificationChain msgs = null;
			if (postCondition != null)
				msgs = ((InternalEObject)postCondition).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - StatementPackage.OBSERVER_STATEMENT__POST_CONDITION, null, msgs);
			if (newPostCondition != null)
				msgs = ((InternalEObject)newPostCondition).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - StatementPackage.OBSERVER_STATEMENT__POST_CONDITION, null, msgs);
			msgs = basicSetPostCondition(newPostCondition, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, StatementPackage.OBSERVER_STATEMENT__POST_CONDITION, newPostCondition, newPostCondition));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
		switch (featureID) {
			case StatementPackage.OBSERVER_STATEMENT__CONTEXT:
				return basicSetContext(null, msgs);
			case StatementPackage.OBSERVER_STATEMENT__STATEMENT:
				return basicSetStatement(null, msgs);
			case StatementPackage.OBSERVER_STATEMENT__POST_CONDITION:
				return basicSetPostCondition(null, msgs);
		}
		return super.eInverseRemove(otherEnd, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
			case StatementPackage.OBSERVER_STATEMENT__CONTEXT:
				return getContext();
			case StatementPackage.OBSERVER_STATEMENT__STATEMENT:
				return getStatement();
			case StatementPackage.OBSERVER_STATEMENT__POST_CONDITION:
				return getPostCondition();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case StatementPackage.OBSERVER_STATEMENT__CONTEXT:
				setContext((Expression)newValue);
				return;
			case StatementPackage.OBSERVER_STATEMENT__STATEMENT:
				setStatement((Statement)newValue);
				return;
			case StatementPackage.OBSERVER_STATEMENT__POST_CONDITION:
				setPostCondition((Expression)newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case StatementPackage.OBSERVER_STATEMENT__CONTEXT:
				setContext((Expression)null);
				return;
			case StatementPackage.OBSERVER_STATEMENT__STATEMENT:
				setStatement((Statement)null);
				return;
			case StatementPackage.OBSERVER_STATEMENT__POST_CONDITION:
				setPostCondition((Expression)null);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case StatementPackage.OBSERVER_STATEMENT__CONTEXT:
				return context != null;
			case StatementPackage.OBSERVER_STATEMENT__STATEMENT:
				return statement != null;
			case StatementPackage.OBSERVER_STATEMENT__POST_CONDITION:
				return postCondition != null;
		}
		return super.eIsSet(featureID);
	}

} //ObserverStatementImpl