SReferenceChangeEvent.java

/*
 * Copyright 2003-2016 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jetbrains.mps.openapi.event;

import org.jetbrains.annotations.NotNull;
import org.jetbrains.mps.annotations.Immutable;
import org.jetbrains.mps.openapi.language.SReferenceLink;
import org.jetbrains.mps.openapi.model.SModel;
import org.jetbrains.mps.openapi.model.SNode;
import org.jetbrains.mps.openapi.model.SReference;

/**
 * Encapsulates information about modified reference.
 *
 * @since 3.3
 * @author Artem Tikhomirov
 */
@Immutable
public final class SReferenceChangeEvent extends  AbstractModelChangeEvent {
  private final SModel myModel;
  private final SNode myNode;
  private final SReferenceLink myLink;
  private final SReference myOldValue;
  private final SReference myNewValue;

  public SReferenceChangeEvent(@NotNull SModel model, @NotNull SNode node, @NotNull SReferenceLink link, SReference oldValue, SReference newValue) {
    myModel = model;
    myNode = node;
    myLink = link;
    myOldValue = oldValue;
    myNewValue = newValue;
  }

  @Override
  @NotNull
  public SModel getModel() {
    return myModel;
  }

  @NotNull
  public SNode getNode() {
    return myNode;
  }

  @NotNull
  public SReferenceLink getAssociationLink() {
    return myLink;
  }

  public SReference getOldValue() {
    return myOldValue;
  }

  public SReference getNewValue() {
    return myNewValue;
  }
}