/**
 * 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.sqoop.manager.oracle;

import java.lang.reflect.Field;

import org.apache.hadoop.io.Writable;

/**
 * How data should be split between mappers.
 */
public abstract class OraOopOracleDataChunk implements Writable {

  private String id;

  public abstract long getNumberOfBlocks();

  public String getWhereClause() {
    return "1=1";
  }

  public String getPartitionClause() {
    return "";
  }

  @Override
  public String toString() {

    String result = super.toString();
    for (Field field : this.getClass().getDeclaredFields()) {
      try {
        Object fieldValue = field.get(this);
        result +=
            String.format("\n\t%s = %s", field.getName(),
                (fieldValue == null ? "null" : fieldValue.toString()));
      } catch (IllegalAccessException ex) {
        // Ignore this exception.
      }
    }

    return result;
  }

  public String getId() {
    return id;
  }

  public void setId(String newId) {
    this.id = newId;
  }

}