/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.uima.collection.metadata;

import org.apache.uima.resource.metadata.MetaDataObject;

/**
 * An object that holds configuration that is part of the CPE descriptor. Provides the means of
 * configuring CPE CollectionReader.
 * 
 * 
 */
public interface CpeCollectionReader extends MetaDataObject {
  /**
   * Sets CasInitializer for the CollectionReader will use. This object initializes the CAS with
   * SoFas.
   * 
   * @param aCasInitializer
   *          - {@link org.apache.uima.collection.metadata.CpeCollectionReaderCasInitializer}
   * @throws CpeDescriptorException
   *           tbd
   * 
   * @deprecated As of v2.0 CAS Initializers are deprecated.
   */
  @Deprecated
  void setCasInitializer(CpeCollectionReaderCasInitializer aCasInitializer)
          throws CpeDescriptorException;

  /**
   * Returns CasInitializer associated with CollectionReader. This object initializes the CAS with
   * SoFas.
   * 
   * @return {@link org.apache.uima.collection.metadata.CpeCollectionReaderCasInitializer}
   * @throws CpeDescriptorException
   *           tbd
   * 
   * @deprecated As of v2.0 CAS Initializers are deprecated.
   */
  @Deprecated
  CpeCollectionReaderCasInitializer getCasInitializer() throws CpeDescriptorException;

  /**
   * Removes {@link org.apache.uima.collection.metadata.CpeCollectionReaderCasInitializer} from
   * CollectionReader
   * 
   */
  void removeCasInitializer();

  /**
   * Sets descriptor path containing configuration for the CollectionReader
   * 
   * @param aDescriptor
   *          - component containing descriptor path
   */
  void setDescriptor(CpeComponentDescriptor aDescriptor);

  /**
   * Returns {@link org.apache.uima.collection.metadata.CpeComponentDescriptor} containing
   * CollectionReader descriptor path.
   * 
   * @return component containing descriptor path
   */
  CpeComponentDescriptor getDescriptor();

  /**
   * Returns {@link org.apache.uima.collection.metadata.CasProcessorConfigurationParameterSettings}
   * object containing overrides to parameter settings for this CollectionReader.
   * 
   * @return - object containing parameter setting overrides
   */
  CasProcessorConfigurationParameterSettings getConfigurationParameterSettings();

  /**
   * Sets the {@link org.apache.uima.collection.metadata.CasProcessorConfigurationParameterSettings}
   * object containing overrides to parameter settings for this CollectionReader.
   * 
   * @param aSettings
   *          object containing parameter setting overrides
   * @throws CpeDescriptorException
   *           tbd
   */
  void setConfigurationParameterSettings(CasProcessorConfigurationParameterSettings aSettings)
          throws CpeDescriptorException;

  void setCollectionIterator(CpeCollectionReaderIterator iterator);

  CpeCollectionReaderIterator getCollectionIterator();
}
