/*
 * Copyright 2009-2014 DigitalGlobe, Inc.
 *
 * 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.mrgeo.mapalgebra;

import java.util.Set;

public interface InputsCalculator
{
  /**
   * Calculate the input pyramid paths from the entire tree for this image. This should _not_ call
   * getOutput() on its input MapOps.
   * 
   * @return
   * @throws IOException
   */
  public Set<String> calculateInputs();
}
