/*******************************************************************************
 * Copyright (c) 2009, 2011 SAP AG 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:
 *     SAP AG - initial API and implementation
 ******************************************************************************
 * $Id: ContextImpl.java,v 1.2 2011/03/05 21:51:24 auhl Exp $
 */
package data.classes.impl;

import data.classes.ClassesPackage;
import data.classes.Context;
import data.classes.SapClass;

import data.constraints.Constraint;
import data.constraints.ConstraintsPackage;

import dataaccess.expressions.Expression;

import java.util.Collection;

import modelmanagement.impl.NamedElementImpl;

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.NotificationChain;

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

import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.InternalEObject;

import org.eclipse.emf.ecore.impl.ENotificationImpl;

import org.eclipse.emf.ecore.util.EObjectContainmentWithInverseEList;
import org.eclipse.emf.ecore.util.InternalEList;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Context</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link data.classes.impl.ContextImpl#getFor_ <em>For </em>}</li>
 *   <li>{@link data.classes.impl.ContextImpl#getConstraints <em>Constraints</em>}</li>
 *   <li>{@link data.classes.impl.ContextImpl#getCondition <em>Condition</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class ContextImpl extends NamedElementImpl implements Context {
	/**
	 * The cached value of the '{@link #getFor_() <em>For </em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getFor_()
	 * @generated
	 * @ordered
	 */
	protected SapClass for_;

	/**
	 * The cached value of the '{@link #getConstraints() <em>Constraints</em>}' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getConstraints()
	 * @generated
	 * @ordered
	 */
	protected EList<Constraint> constraints;

	/**
	 * The cached value of the '{@link #getCondition() <em>Condition</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getCondition()
	 * @generated
	 * @ordered
	 */
	protected Expression condition;

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected ContextImpl() {
		super();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	protected EClass eStaticClass() {
		return ClassesPackage.Literals.CONTEXT;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public SapClass getFor_() {
		if (for_ != null && for_.eIsProxy()) {
			InternalEObject oldFor_ = (InternalEObject)for_;
			for_ = (SapClass)eResolveProxy(oldFor_);
			if (for_ != oldFor_) {
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE, ClassesPackage.CONTEXT__FOR_, oldFor_, for_));
			}
		}
		return for_;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public SapClass basicGetFor_() {
		return for_;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setFor_(SapClass newFor_) {
		SapClass oldFor_ = for_;
		for_ = newFor_;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, ClassesPackage.CONTEXT__FOR_, oldFor_, for_));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EList<Constraint> getConstraints() {
		if (constraints == null) {
			constraints = new EObjectContainmentWithInverseEList.Resolving<Constraint>(Constraint.class, this, ClassesPackage.CONTEXT__CONSTRAINTS, ConstraintsPackage.CONSTRAINT__THE_CONTEXT);
		}
		return constraints;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Expression getCondition() {
		if (condition != null && condition.eIsProxy()) {
			InternalEObject oldCondition = (InternalEObject)condition;
			condition = (Expression)eResolveProxy(oldCondition);
			if (condition != oldCondition) {
				InternalEObject newCondition = (InternalEObject)condition;
				NotificationChain msgs = oldCondition.eInverseRemove(this, EOPPOSITE_FEATURE_BASE - ClassesPackage.CONTEXT__CONDITION, null, null);
				if (newCondition.eInternalContainer() == null) {
					msgs = newCondition.eInverseAdd(this, EOPPOSITE_FEATURE_BASE - ClassesPackage.CONTEXT__CONDITION, null, msgs);
				}
				if (msgs != null) msgs.dispatch();
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE, ClassesPackage.CONTEXT__CONDITION, oldCondition, condition));
			}
		}
		return condition;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Expression basicGetCondition() {
		return condition;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetCondition(Expression newCondition, NotificationChain msgs) {
		Expression oldCondition = condition;
		condition = newCondition;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, ClassesPackage.CONTEXT__CONDITION, oldCondition, newCondition);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setCondition(Expression newCondition) {
		if (newCondition != condition) {
			NotificationChain msgs = null;
			if (condition != null)
				msgs = ((InternalEObject)condition).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - ClassesPackage.CONTEXT__CONDITION, null, msgs);
			if (newCondition != null)
				msgs = ((InternalEObject)newCondition).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - ClassesPackage.CONTEXT__CONDITION, null, msgs);
			msgs = basicSetCondition(newCondition, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, ClassesPackage.CONTEXT__CONDITION, newCondition, newCondition));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@SuppressWarnings("unchecked")
	@Override
	public NotificationChain eInverseAdd(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
		switch (featureID) {
			case ClassesPackage.CONTEXT__CONSTRAINTS:
				return ((InternalEList<InternalEObject>)(InternalEList<?>)getConstraints()).basicAdd(otherEnd, msgs);
		}
		return super.eInverseAdd(otherEnd, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
		switch (featureID) {
			case ClassesPackage.CONTEXT__CONSTRAINTS:
				return ((InternalEList<?>)getConstraints()).basicRemove(otherEnd, msgs);
			case ClassesPackage.CONTEXT__CONDITION:
				return basicSetCondition(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 ClassesPackage.CONTEXT__FOR_:
				if (resolve) return getFor_();
				return basicGetFor_();
			case ClassesPackage.CONTEXT__CONSTRAINTS:
				return getConstraints();
			case ClassesPackage.CONTEXT__CONDITION:
				if (resolve) return getCondition();
				return basicGetCondition();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@SuppressWarnings("unchecked")
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case ClassesPackage.CONTEXT__FOR_:
				setFor_((SapClass)newValue);
				return;
			case ClassesPackage.CONTEXT__CONSTRAINTS:
				getConstraints().clear();
				getConstraints().addAll((Collection<? extends Constraint>)newValue);
				return;
			case ClassesPackage.CONTEXT__CONDITION:
				setCondition((Expression)newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case ClassesPackage.CONTEXT__FOR_:
				setFor_((SapClass)null);
				return;
			case ClassesPackage.CONTEXT__CONSTRAINTS:
				getConstraints().clear();
				return;
			case ClassesPackage.CONTEXT__CONDITION:
				setCondition((Expression)null);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case ClassesPackage.CONTEXT__FOR_:
				return for_ != null;
			case ClassesPackage.CONTEXT__CONSTRAINTS:
				return constraints != null && !constraints.isEmpty();
			case ClassesPackage.CONTEXT__CONDITION:
				return condition != null;
		}
		return super.eIsSet(featureID);
	}

} //ContextImpl