Examples of org.gdbms.engine.strategies.Strategy

org.gdbms.engine.strategies.Strategy
Interfaz que define las operaciones que se pueden realizar con los DataSource. Las distintas implementaciones de esta interfaz ser�n las encargadas del uso de los indices, del algoritmo usado para cada operaci�n, ...

   * @return DataSource que accede a los datos resultado de ejecutar la select
   * @throws ExecutionException
   */
  public DataSource getDataSource(SelectAdapter instr)
      throws ExecutionException {
    Strategy strategy = sm.getStrategy(instr);


    DataSource ret;


    ret = strategy.select(instr);


    return ret;
  }

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   * 
   * @throws ExecutionException
   */
  private DataSource getDataSource(UnionAdapter instr)
      throws ExecutionException {
    Strategy strategy = sm.getStrategy(instr);


    DataSource ret;


    ret = strategy.union(instr);


    return getModedDataSource(ret, NORMAL);
  }

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   * 
   * @throws ExecutionException
   */
  public DataSource getDataSource(CustomAdapter instr)
      throws ExecutionException {
    Strategy strategy = sm.getStrategy(instr);


    DataSource ret;


    ret = strategy.custom(instr);


    return getModedDataSource(ret, NORMAL);
  }

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Related Classes of org.gdbms.engine.strategies.Strategy

org.gdbms.engine.data.DataSourceFactory

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