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package org.eclipse.viatra.solver.data.query.internal;
import java.lang.reflect.InvocationTargetException;
import java.util.concurrent.Callable;
import org.eclipse.viatra.query.runtime.api.scope.IBaseIndex;
import org.eclipse.viatra.query.runtime.api.scope.IIndexingErrorListener;
import org.eclipse.viatra.query.runtime.api.scope.IInstanceObserver;
import org.eclipse.viatra.query.runtime.api.scope.ViatraBaseIndexChangeListener;
/**
* copied from org.eclipse.viatra.query.runtime.tabular.TabularEngineContext;
*/
public class DummyBaseIndexer implements IBaseIndex{
@Override
public <V> V coalesceTraversals(Callable<V> callable) throws InvocationTargetException {
try {
return callable.call();
} catch (Exception e) {
throw new InvocationTargetException(e);
}
}
@Override
public void addBaseIndexChangeListener(ViatraBaseIndexChangeListener listener) {
// no notification support
}
@Override
public void removeBaseIndexChangeListener(ViatraBaseIndexChangeListener listener) {
// no notification support
}
@Override
public void resampleDerivedFeatures() {
throw new UnsupportedOperationException();
}
@Override
public boolean addIndexingErrorListener(IIndexingErrorListener listener) {
return true;
}
@Override
public boolean removeIndexingErrorListener(IIndexingErrorListener listener) {
return true;
}
@Override
public boolean addInstanceObserver(IInstanceObserver observer, Object observedObject) {
return true;
}
@Override
public boolean removeInstanceObserver(IInstanceObserver observer, Object observedObject) {
return true;
}
}
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