RefProcessor.java

// Copyright (c) 2008 by Leif Frenzel - see http://leiffrenzel.de
// This code is made available under the terms of the Eclipse Public License,
// version 1.0 (EPL). See http://www.eclipse.org/legal/epl-v10.html
package net.sf.eclipsefp.haskell.ui.internal.refactoring;


import net.sf.eclipsefp.haskell.ui.internal.util.UITexts;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.ltk.core.refactoring.Change;
import org.eclipse.ltk.core.refactoring.CompositeChange;
import org.eclipse.ltk.core.refactoring.RefactoringStatus;
import org.eclipse.ltk.core.refactoring.participants.CheckConditionsContext;
import org.eclipse.ltk.core.refactoring.participants.RefactoringParticipant;
import org.eclipse.ltk.core.refactoring.participants.RefactoringProcessor;
import org.eclipse.ltk.core.refactoring.participants.SharableParticipants;

public class RefProcessor<T extends RefDelegate> extends RefactoringProcessor {

  protected final T delegate;
  private final String name;

  public RefProcessor( final T delegate,
                       final String name ) {
    this.delegate = delegate;
    this.name = name;
  }


  /**
   * @return the delegate
   */
  public T getDelegate() {
    return delegate;
  }

  // interface methods of RefactoringProcessor
  ////////////////////////////////////////////

  @Override
  public String getProcessorName() {
    return name;
  }

  @Override
  public String getIdentifier() {
    return getClass().getName();
  }

  @Override
  public Object[] getElements() {
    return new Object[] { UITexts.refProcessor_elem };
  }

  @Override
  public boolean isApplicable() {
    return true;
  }

  @Override
  public RefactoringStatus checkInitialConditions( final IProgressMonitor pm ) {
    return delegate.checkInitialConditions();
  }

  @Override
  public RefactoringStatus checkFinalConditions( final IProgressMonitor pm, final CheckConditionsContext context ) {
    return delegate.checkFinalConditions( pm, context );
  }

  @Override
  public Change createChange( final IProgressMonitor pm ) {
    CompositeChange result = new CompositeChange( getProcessorName() );
    delegate.createChange( pm, result );
    return result;
  }

  @Override
  public RefactoringParticipant[] loadParticipants( final RefactoringStatus status, final SharableParticipants sharedParticipants ) {
    // This would be the place to load the participants via the
    // ParticipantManager and decide which of them are allowed to participate.
    return new RefactoringParticipant[ 0 ];
  }

}