/**
 *  * Copyright (c) 2006-2010 Istvan Rath and Daniel Varro
 *  * 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:
 *  *    Istvan Rath, Daniel Varro - initial API and implementation
 * 
 */
package org.eclipse.viatra2.gtasmmodel.gtasm.metamodel.gt.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.viatra2.gtasmmodel.gtasm.metamodel.asm.core.impl.GTASMElementImpl;

import org.eclipse.viatra2.gtasmmodel.gtasm.metamodel.asm.terms.VariableReference;

import org.eclipse.viatra2.gtasmmodel.gtasm.metamodel.gt.GtPackage;
import org.eclipse.viatra2.gtasmmodel.gtasm.metamodel.gt.PatternVariableConstraint;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Pattern Variable Constraint</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipse.viatra2.gtasmmodel.gtasm.metamodel.gt.impl.PatternVariableConstraintImpl#getLeftValue <em>Left Value</em>}</li>
 *   <li>{@link org.eclipse.viatra2.gtasmmodel.gtasm.metamodel.gt.impl.PatternVariableConstraintImpl#getRightValue <em>Right Value</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public abstract class PatternVariableConstraintImpl extends GTASMElementImpl implements PatternVariableConstraint
{
  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public static final String copyright = " * Copyright (c) 2006-2010 Istvan Rath and Daniel Varro\r\n * All rights reserved. This program and the accompanying materials\r\n * are made available under the terms of the Eclipse Public License v1.0\r\n * which accompanies this distribution, and is available at\r\n * http://www.eclipse.org/legal/epl-v10.html\r\n *\r\n * Contributors:\r\n *    Istvan Rath, Daniel Varro - initial API and implementation\r\n";

  /**
   * The cached value of the '{@link #getLeftValue() <em>Left Value</em>}' containment reference.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @see #getLeftValue()
   * @generated
   * @ordered
   */
  protected VariableReference leftValue;

  /**
   * The cached value of the '{@link #getRightValue() <em>Right Value</em>}' containment reference.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @see #getRightValue()
   * @generated
   * @ordered
   */
  protected VariableReference rightValue;

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

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

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public VariableReference getLeftValue()
  {
    return leftValue;
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public NotificationChain basicSetLeftValue(VariableReference newLeftValue, NotificationChain msgs)
  {
    VariableReference oldLeftValue = leftValue;
    leftValue = newLeftValue;
    if (eNotificationRequired())
    {
      ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, GtPackage.PATTERN_VARIABLE_CONSTRAINT__LEFT_VALUE, oldLeftValue, newLeftValue);
      if (msgs == null) msgs = notification; else msgs.add(notification);
    }
    return msgs;
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void setLeftValue(VariableReference newLeftValue)
  {
    if (newLeftValue != leftValue)
    {
      NotificationChain msgs = null;
      if (leftValue != null)
        msgs = ((InternalEObject)leftValue).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - GtPackage.PATTERN_VARIABLE_CONSTRAINT__LEFT_VALUE, null, msgs);
      if (newLeftValue != null)
        msgs = ((InternalEObject)newLeftValue).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - GtPackage.PATTERN_VARIABLE_CONSTRAINT__LEFT_VALUE, null, msgs);
      msgs = basicSetLeftValue(newLeftValue, msgs);
      if (msgs != null) msgs.dispatch();
    }
    else if (eNotificationRequired())
      eNotify(new ENotificationImpl(this, Notification.SET, GtPackage.PATTERN_VARIABLE_CONSTRAINT__LEFT_VALUE, newLeftValue, newLeftValue));
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public VariableReference getRightValue()
  {
    return rightValue;
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public NotificationChain basicSetRightValue(VariableReference newRightValue, NotificationChain msgs)
  {
    VariableReference oldRightValue = rightValue;
    rightValue = newRightValue;
    if (eNotificationRequired())
    {
      ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, GtPackage.PATTERN_VARIABLE_CONSTRAINT__RIGHT_VALUE, oldRightValue, newRightValue);
      if (msgs == null) msgs = notification; else msgs.add(notification);
    }
    return msgs;
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void setRightValue(VariableReference newRightValue)
  {
    if (newRightValue != rightValue)
    {
      NotificationChain msgs = null;
      if (rightValue != null)
        msgs = ((InternalEObject)rightValue).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - GtPackage.PATTERN_VARIABLE_CONSTRAINT__RIGHT_VALUE, null, msgs);
      if (newRightValue != null)
        msgs = ((InternalEObject)newRightValue).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - GtPackage.PATTERN_VARIABLE_CONSTRAINT__RIGHT_VALUE, null, msgs);
      msgs = basicSetRightValue(newRightValue, msgs);
      if (msgs != null) msgs.dispatch();
    }
    else if (eNotificationRequired())
      eNotify(new ENotificationImpl(this, Notification.SET, GtPackage.PATTERN_VARIABLE_CONSTRAINT__RIGHT_VALUE, newRightValue, newRightValue));
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs)
  {
    switch (featureID)
    {
      case GtPackage.PATTERN_VARIABLE_CONSTRAINT__LEFT_VALUE:
        return basicSetLeftValue(null, msgs);
      case GtPackage.PATTERN_VARIABLE_CONSTRAINT__RIGHT_VALUE:
        return basicSetRightValue(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 GtPackage.PATTERN_VARIABLE_CONSTRAINT__LEFT_VALUE:
        return getLeftValue();
      case GtPackage.PATTERN_VARIABLE_CONSTRAINT__RIGHT_VALUE:
        return getRightValue();
    }
    return super.eGet(featureID, resolve, coreType);
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public void eSet(int featureID, Object newValue)
  {
    switch (featureID)
    {
      case GtPackage.PATTERN_VARIABLE_CONSTRAINT__LEFT_VALUE:
        setLeftValue((VariableReference)newValue);
        return;
      case GtPackage.PATTERN_VARIABLE_CONSTRAINT__RIGHT_VALUE:
        setRightValue((VariableReference)newValue);
        return;
    }
    super.eSet(featureID, newValue);
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public void eUnset(int featureID)
  {
    switch (featureID)
    {
      case GtPackage.PATTERN_VARIABLE_CONSTRAINT__LEFT_VALUE:
        setLeftValue((VariableReference)null);
        return;
      case GtPackage.PATTERN_VARIABLE_CONSTRAINT__RIGHT_VALUE:
        setRightValue((VariableReference)null);
        return;
    }
    super.eUnset(featureID);
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public boolean eIsSet(int featureID)
  {
    switch (featureID)
    {
      case GtPackage.PATTERN_VARIABLE_CONSTRAINT__LEFT_VALUE:
        return leftValue != null;
      case GtPackage.PATTERN_VARIABLE_CONSTRAINT__RIGHT_VALUE:
        return rightValue != null;
    }
    return super.eIsSet(featureID);
  }

} //PatternVariableConstraintImpl