/**
 */
package org.yakindu.base.expressions.expressions.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.yakindu.base.expressions.expressions.Expression;
import org.yakindu.base.expressions.expressions.ExpressionsPackage;
import org.yakindu.base.expressions.expressions.NumericalUnaryExpression;
import org.yakindu.base.expressions.expressions.UnaryOperator;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Numerical Unary Expression</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.yakindu.base.expressions.expressions.impl.NumericalUnaryExpressionImpl#getOperator <em>Operator</em>}</li>
 *   <li>{@link org.yakindu.base.expressions.expressions.impl.NumericalUnaryExpressionImpl#getOperand <em>Operand</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class NumericalUnaryExpressionImpl extends ExpressionImpl implements NumericalUnaryExpression {
	/**
	 * The default value of the '{@link #getOperator() <em>Operator</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getOperator()
	 * @generated
	 * @ordered
	 */
	protected static final UnaryOperator OPERATOR_EDEFAULT = UnaryOperator.POSITIVE;

	/**
	 * The cached value of the '{@link #getOperator() <em>Operator</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getOperator()
	 * @generated
	 * @ordered
	 */
	protected UnaryOperator operator = OPERATOR_EDEFAULT;

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

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public UnaryOperator getOperator() {
		return operator;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setOperator(UnaryOperator newOperator) {
		UnaryOperator oldOperator = operator;
		operator = newOperator == null ? OPERATOR_EDEFAULT : newOperator;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, ExpressionsPackage.NUMERICAL_UNARY_EXPRESSION__OPERATOR, oldOperator, operator));
	}

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetOperand(Expression newOperand, NotificationChain msgs) {
		Expression oldOperand = operand;
		operand = newOperand;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, ExpressionsPackage.NUMERICAL_UNARY_EXPRESSION__OPERAND, oldOperand, newOperand);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setOperand(Expression newOperand) {
		if (newOperand != operand) {
			NotificationChain msgs = null;
			if (operand != null)
				msgs = ((InternalEObject)operand).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - ExpressionsPackage.NUMERICAL_UNARY_EXPRESSION__OPERAND, null, msgs);
			if (newOperand != null)
				msgs = ((InternalEObject)newOperand).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - ExpressionsPackage.NUMERICAL_UNARY_EXPRESSION__OPERAND, null, msgs);
			msgs = basicSetOperand(newOperand, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, ExpressionsPackage.NUMERICAL_UNARY_EXPRESSION__OPERAND, newOperand, newOperand));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
		switch (featureID) {
			case ExpressionsPackage.NUMERICAL_UNARY_EXPRESSION__OPERAND:
				return basicSetOperand(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 ExpressionsPackage.NUMERICAL_UNARY_EXPRESSION__OPERATOR:
				return getOperator();
			case ExpressionsPackage.NUMERICAL_UNARY_EXPRESSION__OPERAND:
				return getOperand();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case ExpressionsPackage.NUMERICAL_UNARY_EXPRESSION__OPERATOR:
				setOperator((UnaryOperator)newValue);
				return;
			case ExpressionsPackage.NUMERICAL_UNARY_EXPRESSION__OPERAND:
				setOperand((Expression)newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case ExpressionsPackage.NUMERICAL_UNARY_EXPRESSION__OPERATOR:
				setOperator(OPERATOR_EDEFAULT);
				return;
			case ExpressionsPackage.NUMERICAL_UNARY_EXPRESSION__OPERAND:
				setOperand((Expression)null);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case ExpressionsPackage.NUMERICAL_UNARY_EXPRESSION__OPERATOR:
				return operator != OPERATOR_EDEFAULT;
			case ExpressionsPackage.NUMERICAL_UNARY_EXPRESSION__OPERAND:
				return operand != null;
		}
		return super.eIsSet(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public String toString() {
		if (eIsProxy()) return super.toString();

		StringBuffer result = new StringBuffer(super.toString());
		result.append(" (operator: ");
		result.append(operator);
		result.append(')');
		return result.toString();
	}

} //NumericalUnaryExpressionImpl
