| /* |
| * 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.ignite.internal.processors.cache.binary; |
| |
| import java.io.Serializable; |
| import org.apache.ignite.internal.binary.BinaryMetadata; |
| |
| /** |
| * Wrapper for {@link BinaryMetadata} which is stored in metadata local cache on each node. |
| * Used internally to track version counters (see javadoc for {@link MetadataUpdateProposedMessage} for more details). |
| */ |
| final class BinaryMetadataHolder implements Serializable { |
| /** */ |
| private static final long serialVersionUID = 0L; |
| |
| /** */ |
| private final BinaryMetadata metadata; |
| |
| /** */ |
| private final int pendingVer; |
| |
| /** */ |
| private final int acceptedVer; |
| |
| /** */ |
| private final transient boolean removing; |
| |
| /** |
| * @param metadata Metadata. |
| * @param pendingVer Version of this metadata - how many updates were issued for this type. |
| * @param acceptedVer Pending updates count. |
| */ |
| BinaryMetadataHolder(BinaryMetadata metadata, int pendingVer, int acceptedVer) { |
| this(metadata, pendingVer, acceptedVer, false); |
| } |
| |
| /** |
| * @param metadata Metadata. |
| * @param pendingVer Pending updates count. |
| * @param acceptedVer Version of this metadata - how many updates were issued for this type. |
| * @param removing Flag means the metadata is removing now. |
| */ |
| private BinaryMetadataHolder(BinaryMetadata metadata, int pendingVer, int acceptedVer, boolean removing) { |
| assert metadata != null; |
| |
| this.metadata = metadata; |
| this.pendingVer = pendingVer; |
| this.acceptedVer = acceptedVer; |
| this.removing = removing; |
| } |
| |
| /** |
| * @return Holder metadata with remove state where remove pending message has been handled. |
| */ |
| BinaryMetadataHolder createRemoving() { |
| return new BinaryMetadataHolder(metadata, pendingVer, acceptedVer, true); |
| } |
| |
| /** |
| * |
| */ |
| BinaryMetadata metadata() { |
| return metadata; |
| } |
| |
| /** |
| * |
| */ |
| int pendingVersion() { |
| return pendingVer; |
| } |
| |
| /** |
| * |
| */ |
| int acceptedVersion() { |
| return acceptedVer; |
| } |
| |
| /** |
| * @return {@code true} is the metadata is removing now. |
| */ |
| boolean removing() { |
| return removing; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public String toString() { |
| return "[typeId=" + metadata.typeId() + |
| ", pendingVer=" + pendingVer + |
| ", acceptedVer=" + acceptedVer + |
| ", removing=" + removing + |
| "]"; |
| } |
| } |