StepMetaExtractionInterface.java

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 * Pentaho Data Integration
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 * Copyright (C) 2002-2013 by Pentaho : http://www.pentaho.com
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 * 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
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 *    http://www.apache.org/licenses/LICENSE-2.0
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package org.pentaho.di.trans.step;

import java.util.List;

import org.pentaho.di.core.exception.KettleException;

/**
 * This interface allows an external program to inject metadata using a standard flat set of metadata attributes.
 *
 * @author matt
 *
 */
public interface StepMetaExtractionInterface {
  /**
   * @return A list of step injection metadata entries. In case the data type of the entry is NONE (0) you will get at
   *         least one entry in the details section. You can use this list
   */
  public List<StepInjectionMetaEntry> getStepInjectionMetadataEntries() throws KettleException;

  public void injectStepMetadataEntries( List<StepInjectionMetaEntry> metadata ) throws KettleException;
}