/**
 * generated by Xtext version 2.21.0
 */
package ca.queensu.cs.mase.urml.impl;

import ca.queensu.cs.mase.urml.Expression;
import ca.queensu.cs.mase.urml.LocalVar;
import ca.queensu.cs.mase.urml.UrmlPackage;
import ca.queensu.cs.mase.urml.Variable;

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>Variable</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * </p>
 * <ul>
 *   <li>{@link ca.queensu.cs.mase.urml.impl.VariableImpl#getVar <em>Var</em>}</li>
 *   <li>{@link ca.queensu.cs.mase.urml.impl.VariableImpl#isAssign <em>Assign</em>}</li>
 *   <li>{@link ca.queensu.cs.mase.urml.impl.VariableImpl#getExp <em>Exp</em>}</li>
 * </ul>
 *
 * @generated
 */
public class VariableImpl extends StatementOperationImpl implements Variable
{
  /**
   * The cached value of the '{@link #getVar() <em>Var</em>}' containment reference.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @see #getVar()
   * @generated
   * @ordered
   */
  protected LocalVar var;

  /**
   * The default value of the '{@link #isAssign() <em>Assign</em>}' attribute.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @see #isAssign()
   * @generated
   * @ordered
   */
  protected static final boolean ASSIGN_EDEFAULT = false;

  /**
   * The cached value of the '{@link #isAssign() <em>Assign</em>}' attribute.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @see #isAssign()
   * @generated
   * @ordered
   */
  protected boolean assign = ASSIGN_EDEFAULT;

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

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

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

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public LocalVar getVar()
  {
    return var;
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public NotificationChain basicSetVar(LocalVar newVar, NotificationChain msgs)
  {
    LocalVar oldVar = var;
    var = newVar;
    if (eNotificationRequired())
    {
      ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, UrmlPackage.VARIABLE__VAR, oldVar, newVar);
      if (msgs == null) msgs = notification; else msgs.add(notification);
    }
    return msgs;
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public void setVar(LocalVar newVar)
  {
    if (newVar != var)
    {
      NotificationChain msgs = null;
      if (var != null)
        msgs = ((InternalEObject)var).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - UrmlPackage.VARIABLE__VAR, null, msgs);
      if (newVar != null)
        msgs = ((InternalEObject)newVar).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - UrmlPackage.VARIABLE__VAR, null, msgs);
      msgs = basicSetVar(newVar, msgs);
      if (msgs != null) msgs.dispatch();
    }
    else if (eNotificationRequired())
      eNotify(new ENotificationImpl(this, Notification.SET, UrmlPackage.VARIABLE__VAR, newVar, newVar));
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public boolean isAssign()
  {
    return assign;
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public void setAssign(boolean newAssign)
  {
    boolean oldAssign = assign;
    assign = newAssign;
    if (eNotificationRequired())
      eNotify(new ENotificationImpl(this, Notification.SET, UrmlPackage.VARIABLE__ASSIGN, oldAssign, assign));
  }

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

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public NotificationChain basicSetExp(Expression newExp, NotificationChain msgs)
  {
    Expression oldExp = exp;
    exp = newExp;
    if (eNotificationRequired())
    {
      ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, UrmlPackage.VARIABLE__EXP, oldExp, newExp);
      if (msgs == null) msgs = notification; else msgs.add(notification);
    }
    return msgs;
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public void setExp(Expression newExp)
  {
    if (newExp != exp)
    {
      NotificationChain msgs = null;
      if (exp != null)
        msgs = ((InternalEObject)exp).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - UrmlPackage.VARIABLE__EXP, null, msgs);
      if (newExp != null)
        msgs = ((InternalEObject)newExp).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - UrmlPackage.VARIABLE__EXP, null, msgs);
      msgs = basicSetExp(newExp, msgs);
      if (msgs != null) msgs.dispatch();
    }
    else if (eNotificationRequired())
      eNotify(new ENotificationImpl(this, Notification.SET, UrmlPackage.VARIABLE__EXP, newExp, newExp));
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs)
  {
    switch (featureID)
    {
      case UrmlPackage.VARIABLE__VAR:
        return basicSetVar(null, msgs);
      case UrmlPackage.VARIABLE__EXP:
        return basicSetExp(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 UrmlPackage.VARIABLE__VAR:
        return getVar();
      case UrmlPackage.VARIABLE__ASSIGN:
        return isAssign();
      case UrmlPackage.VARIABLE__EXP:
        return getExp();
    }
    return super.eGet(featureID, resolve, coreType);
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public void eSet(int featureID, Object newValue)
  {
    switch (featureID)
    {
      case UrmlPackage.VARIABLE__VAR:
        setVar((LocalVar)newValue);
        return;
      case UrmlPackage.VARIABLE__ASSIGN:
        setAssign((Boolean)newValue);
        return;
      case UrmlPackage.VARIABLE__EXP:
        setExp((Expression)newValue);
        return;
    }
    super.eSet(featureID, newValue);
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public void eUnset(int featureID)
  {
    switch (featureID)
    {
      case UrmlPackage.VARIABLE__VAR:
        setVar((LocalVar)null);
        return;
      case UrmlPackage.VARIABLE__ASSIGN:
        setAssign(ASSIGN_EDEFAULT);
        return;
      case UrmlPackage.VARIABLE__EXP:
        setExp((Expression)null);
        return;
    }
    super.eUnset(featureID);
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public boolean eIsSet(int featureID)
  {
    switch (featureID)
    {
      case UrmlPackage.VARIABLE__VAR:
        return var != null;
      case UrmlPackage.VARIABLE__ASSIGN:
        return assign != ASSIGN_EDEFAULT;
      case UrmlPackage.VARIABLE__EXP:
        return exp != null;
    }
    return super.eIsSet(featureID);
  }

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

    StringBuilder result = new StringBuilder(super.toString());
    result.append(" (assign: ");
    result.append(assign);
    result.append(')');
    return result.toString();
  }

} //VariableImpl
