--- /dev/null
+/*
+ * Copyright (c) 2016 Brocade Communications Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.cluster.raft.persisted;
+
+import java.io.Externalizable;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+import java.io.Serializable;
+
+/**
+ * Internal message that is stored in the akka's persistent journal to delete journal entries.
+ *
+ * @author Thomas Pantelis
+ */
+public class DeleteEntries implements Serializable, MigratedSerializable {
+ private static final class Proxy implements Externalizable {
+ private static final long serialVersionUID = 1L;
+
+ private DeleteEntries deleteEntries;
+
+ public Proxy() {
+ // For Externalizable
+ }
+
+ Proxy(final DeleteEntries deleteEntries) {
+ this.deleteEntries = deleteEntries;
+ }
+
+ @Override
+ public void writeExternal(final ObjectOutput out) throws IOException {
+ out.writeLong(deleteEntries.fromIndex);
+ }
+
+ @Override
+ public void readExternal(final ObjectInput in) throws IOException, ClassNotFoundException {
+ deleteEntries = new DeleteEntries(in.readLong());
+ }
+
+ private Object readResolve() {
+ return deleteEntries;
+ }
+ }
+
+ private static final long serialVersionUID = 1L;
+
+ private final long fromIndex;
+ private final boolean migrated;
+
+ private DeleteEntries(final long fromIndex, final boolean migrated) {
+ this.fromIndex = fromIndex;
+ this.migrated = migrated;
+ }
+
+ public DeleteEntries(final long fromIndex) {
+ this(fromIndex, false);
+ }
+
+ public long getFromIndex() {
+ return fromIndex;
+ }
+
+ @Override
+ public boolean isMigrated() {
+ return migrated;
+ }
+
+ @Override
+ public Object writeReplace() {
+ return new Proxy(this);
+ }
+
+ @Deprecated
+ public static DeleteEntries createMigrated(final long fromIndex) {
+ return new DeleteEntries(fromIndex, true);
+ }
+
+ @Override
+ public String toString() {
+ return "DeleteEntries [fromIndex=" + fromIndex + "]";
+ }
+}