/*
* Copyright 2003-2015 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 jetbrains.mps.smodel;
import jetbrains.mps.util.Computable;
import org.jetbrains.mps.openapi.model.EditableSModel;
import org.jetbrains.mps.openapi.model.SModel;
import org.jetbrains.mps.openapi.model.SNodeChangeListener;
// XXX almost identical to TransientModelNodeFinder, once
// NodeReadAccessCasterInEditor#runReadTransparentAction has better alternative, merge.
public class DefaultFastNodeFinder extends BaseFastNodeFinder {
private final SNodeChangeListener myListener;
public DefaultFastNodeFinder(SModel model) {
super(model);
if (!model.isReadOnly() && model instanceof EditableSModel) {
myListener = new ChangeTracker();
model.addChangeListener(myListener);
} else {
myListener = null;
}
}
@Override
public void dispose() {
if (myListener != null) {
myModel.removeChangeListener(myListener);
}
super.dispose();
}
@Override
protected ConceptInstanceMap build(Computable<ConceptInstanceMap> b) {
return NodeReadAccessCasterInEditor.runReadTransparentAction(b);
}
}