UndoEvent.java

package org.springframework.roo.file.undo;

import org.apache.commons.lang3.Validate;

/**
 * An event delivered to an {@link UndoListener}.
 * 
 * @author Ben Alex
 * @since 1.1.1
 */
public class UndoEvent {

  public enum UndoOperation {
    FLUSH, RESET, UNDO
  }

  private final UndoOperation operation;

  public UndoEvent(final UndoOperation operation) {
    Validate.notNull(operation, "Operation required");
    this.operation = operation;
  }

  public UndoOperation getOperation() {
    return operation;
  }

  public boolean isFlushing() {
    return operation == UndoOperation.FLUSH;
  }

  public boolean isResetting() {
    return operation == UndoOperation.RESET;
  }

  /**
   * @return true if undoing, false if committing
   */
  public boolean isUndoing() {
    return operation == UndoOperation.UNDO;
  }
}