OPENDJ-1716 Various PluggableBackend/Storage refactorings Code review: Nico...

Jean-Noel Rouvignac

27.31.2015 a54fa3d78b427d7b8278442acbe86ebebcf6c2e7

 opendj3-server-dev/src/server/org/opends/server/backends/pluggable/spi/ReadOperation.java

@@ -21,12 +21,27 @@
 * CDDL HEADER END
 *
 *
 *      Copyright 2014 ForgeRock AS
 *      Copyright 2014-2015 ForgeRock AS
 */

package org.opends.server.backends.pluggable.spi;

/**
 * Function performing a read operation.
 *
 * @param <T>
 *          type of the value that is read and returned by this read operation
 */
// @FunctionalInterface
public interface ReadOperation<T>
{
  /**
   * Executes a read operation, and returns the read value.
   *
   * @param txn
   *          the read transaction where to execute the read operation
   * @return the read value
   * @throws Exception
   *           if a problem occurs with the underlying storage engine
   */
  T run(ReadableStorage txn) throws Exception;
}