OPENDJ-1716 Various PluggableBackend/Storage refactorings

Jean-Noel Rouvignac

10.52.2015 31800ebec07ed86012e0aeb5a934f752975e8ea4

 opendj3-server-dev/src/server/org/opends/server/backends/ChangelogBackend.java

@@ -25,6 +25,16 @@
 */
package org.opends.server.backends;

import static org.opends.messages.BackendMessages.*;
import static org.opends.messages.ReplicationMessages.*;
import static org.opends.server.config.ConfigConstants.*;
import static org.opends.server.replication.plugin.MultimasterReplication.*;
import static org.opends.server.replication.server.changelog.api.DBCursor.KeyMatchingStrategy.*;
import static org.opends.server.replication.server.changelog.api.DBCursor.PositionStrategy.*;
import static org.opends.server.util.LDIFWriter.*;
import static org.opends.server.util.ServerConstants.*;
import static org.opends.server.util.StaticUtils.*;

import java.text.SimpleDateFormat;
import java.util.Collection;
import java.util.Collections;
@@ -107,16 +117,6 @@
import org.opends.server.types.WritabilityMode;
import org.opends.server.util.StaticUtils;

import static org.opends.messages.BackendMessages.*;
import static org.opends.messages.ReplicationMessages.*;
import static org.opends.server.config.ConfigConstants.*;
import static org.opends.server.replication.plugin.MultimasterReplication.*;
import static org.opends.server.replication.server.changelog.api.DBCursor.KeyMatchingStrategy.*;
import static org.opends.server.replication.server.changelog.api.DBCursor.PositionStrategy.*;
import static org.opends.server.util.LDIFWriter.*;
import static org.opends.server.util.ServerConstants.*;
import static org.opends.server.util.StaticUtils.*;

/**
 * A backend that provides access to the changelog, i.e. the "cn=changelog"
 * suffix. It is a read-only backend that is created by a
@@ -653,13 +653,6 @@

  /** {@inheritDoc} */
  @Override
  public boolean supportsBackup(BackupConfig backupConfig, StringBuilder unsupportedReason)
  {
    return false;
  }

  /** {@inheritDoc} */
  @Override
  public void createBackup(BackupConfig backupConfig) throws DirectoryException
  {
    throw new DirectoryException(ResultCode.UNWILLING_TO_PERFORM,