/**
 * <copyright>
 * </copyright>
 *
 * $Id$
 */
package org.eclipselabs.mscript.language.ast.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.eclipselabs.mscript.language.ast.AstPackage;
import org.eclipselabs.mscript.language.ast.UnitConstructionOperator;
import org.eclipselabs.mscript.typesystem.Unit;
import org.eclipselabs.mscript.typesystem.impl.ExpressionImpl;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Unit Construction Operator</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipselabs.mscript.language.ast.impl.UnitConstructionOperatorImpl#getUnit <em>Unit</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class UnitConstructionOperatorImpl extends ExpressionImpl implements UnitConstructionOperator {
	/**
	 * The cached value of the '{@link #getUnit() <em>Unit</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getUnit()
	 * @generated
	 * @ordered
	 */
	protected Unit unit;

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Unit getUnit() {
		return unit;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetUnit(Unit newUnit, NotificationChain msgs) {
		Unit oldUnit = unit;
		unit = newUnit;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, AstPackage.UNIT_CONSTRUCTION_OPERATOR__UNIT, oldUnit, newUnit);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setUnit(Unit newUnit) {
		if (newUnit != unit) {
			NotificationChain msgs = null;
			if (unit != null)
				msgs = ((InternalEObject)unit).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - AstPackage.UNIT_CONSTRUCTION_OPERATOR__UNIT, null, msgs);
			if (newUnit != null)
				msgs = ((InternalEObject)newUnit).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - AstPackage.UNIT_CONSTRUCTION_OPERATOR__UNIT, null, msgs);
			msgs = basicSetUnit(newUnit, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, AstPackage.UNIT_CONSTRUCTION_OPERATOR__UNIT, newUnit, newUnit));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
		switch (featureID) {
			case AstPackage.UNIT_CONSTRUCTION_OPERATOR__UNIT:
				return basicSetUnit(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 AstPackage.UNIT_CONSTRUCTION_OPERATOR__UNIT:
				return getUnit();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case AstPackage.UNIT_CONSTRUCTION_OPERATOR__UNIT:
				setUnit((Unit)newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case AstPackage.UNIT_CONSTRUCTION_OPERATOR__UNIT:
				setUnit((Unit)null);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case AstPackage.UNIT_CONSTRUCTION_OPERATOR__UNIT:
				return unit != null;
		}
		return super.eIsSet(featureID);
	}

} //UnitConstructionOperatorImpl
