/*******************************************************************************
 * Copyright (c) 2007, 2010 BMW Car IT, Technische Universitaet Muenchen, 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:
 * BMW Car IT - Initial API and implementation
 * Technische Universitaet Muenchen - Major refactoring and extension
 *******************************************************************************/
package org.eclipse.emf.edapt.declaration.impl;

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;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.edapt.declaration.Constraint;
import org.eclipse.emf.edapt.declaration.DeclarationPackage;
import org.eclipse.emf.edapt.declaration.Operation;
import org.eclipse.emf.edapt.declaration.Parameter;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Constraint</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 * <li>{@link org.eclipse.emf.edapt.declaration.impl.ConstraintImpl#getOperation <em>Operation</em>}</li>
 * <li>{@link org.eclipse.emf.edapt.declaration.impl.ConstraintImpl#getRestricts <em>Restricts</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class ConstraintImpl extends IdentifiedElementImpl implements Constraint {
	/**
	 * The cached value of the '{@link #getRestricts() <em>Restricts</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @see #getRestricts()
	 * @generated
	 * @ordered
	 */
	protected Parameter restricts;

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public Operation getOperation() {
		if (eContainerFeatureID() != DeclarationPackage.CONSTRAINT__OPERATION) {
			return null;
		}
		return (Operation) eContainer();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	public NotificationChain basicSetOperation(Operation newOperation, NotificationChain msgs) {
		msgs = eBasicSetContainer((InternalEObject) newOperation, DeclarationPackage.CONSTRAINT__OPERATION, msgs);
		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public void setOperation(Operation newOperation) {
		if (newOperation != eInternalContainer()
			|| eContainerFeatureID() != DeclarationPackage.CONSTRAINT__OPERATION && newOperation != null) {
			if (EcoreUtil.isAncestor(this, newOperation)) {
				throw new IllegalArgumentException("Recursive containment not allowed for " + toString()); //$NON-NLS-1$
			}
			NotificationChain msgs = null;
			if (eInternalContainer() != null) {
				msgs = eBasicRemoveFromContainer(msgs);
			}
			if (newOperation != null) {
				msgs = ((InternalEObject) newOperation).eInverseAdd(this, DeclarationPackage.OPERATION__CONSTRAINTS,
					Operation.class, msgs);
			}
			msgs = basicSetOperation(newOperation, msgs);
			if (msgs != null) {
				msgs.dispatch();
			}
		}
		else if (eNotificationRequired()) {
			eNotify(new ENotificationImpl(this, Notification.SET, DeclarationPackage.CONSTRAINT__OPERATION,
				newOperation, newOperation));
		}
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public Parameter getRestricts() {
		if (restricts != null && restricts.eIsProxy()) {
			final InternalEObject oldRestricts = (InternalEObject) restricts;
			restricts = (Parameter) eResolveProxy(oldRestricts);
			if (restricts != oldRestricts) {
				if (eNotificationRequired()) {
					eNotify(new ENotificationImpl(this, Notification.RESOLVE, DeclarationPackage.CONSTRAINT__RESTRICTS,
						oldRestricts, restricts));
				}
			}
		}
		return restricts;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	public Parameter basicGetRestricts() {
		return restricts;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public void setRestricts(Parameter newRestricts) {
		final Parameter oldRestricts = restricts;
		restricts = newRestricts;
		if (eNotificationRequired()) {
			eNotify(new ENotificationImpl(this, Notification.SET, DeclarationPackage.CONSTRAINT__RESTRICTS,
				oldRestricts, restricts));
		}
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public NotificationChain eInverseAdd(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
		switch (featureID) {
		case DeclarationPackage.CONSTRAINT__OPERATION:
			if (eInternalContainer() != null) {
				msgs = eBasicRemoveFromContainer(msgs);
			}
			return basicSetOperation((Operation) 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 DeclarationPackage.CONSTRAINT__OPERATION:
			return basicSetOperation(null, msgs);
		}
		return super.eInverseRemove(otherEnd, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public NotificationChain eBasicRemoveFromContainerFeature(NotificationChain msgs) {
		switch (eContainerFeatureID()) {
		case DeclarationPackage.CONSTRAINT__OPERATION:
			return eInternalContainer().eInverseRemove(this, DeclarationPackage.OPERATION__CONSTRAINTS,
				Operation.class, msgs);
		}
		return super.eBasicRemoveFromContainerFeature(msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
		case DeclarationPackage.CONSTRAINT__OPERATION:
			return getOperation();
		case DeclarationPackage.CONSTRAINT__RESTRICTS:
			if (resolve) {
				return getRestricts();
			}
			return basicGetRestricts();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
		case DeclarationPackage.CONSTRAINT__OPERATION:
			setOperation((Operation) newValue);
			return;
		case DeclarationPackage.CONSTRAINT__RESTRICTS:
			setRestricts((Parameter) newValue);
			return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
		case DeclarationPackage.CONSTRAINT__OPERATION:
			setOperation((Operation) null);
			return;
		case DeclarationPackage.CONSTRAINT__RESTRICTS:
			setRestricts((Parameter) null);
			return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 *
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
		case DeclarationPackage.CONSTRAINT__OPERATION:
			return getOperation() != null;
		case DeclarationPackage.CONSTRAINT__RESTRICTS:
			return restricts != null;
		}
		return super.eIsSet(featureID);
	}

} // ConstraintImpl