| /* |
| * 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.jackrabbit.oak.spi.blob; |
| |
| import org.apache.jackrabbit.core.data.DataIdentifier; |
| import org.apache.jackrabbit.core.data.DataRecord; |
| |
| /** |
| * Implements {@link DataRecord} |
| */ |
| public abstract class AbstractDataRecord implements DataRecord { |
| |
| /** |
| * The data store that contains this record. |
| */ |
| protected final AbstractSharedBackend backend; |
| |
| /** |
| * The binary identifier; |
| */ |
| private final DataIdentifier identifier; |
| |
| /** |
| * Creates a data record with the given identifier. |
| * |
| * @param identifier data identifier |
| */ |
| public AbstractDataRecord( |
| AbstractSharedBackend backend, DataIdentifier identifier) { |
| this.backend = backend; |
| this.identifier = identifier; |
| } |
| |
| /** |
| * Returns the data identifier. |
| * |
| * @return data identifier |
| */ |
| public DataIdentifier getIdentifier() { |
| return identifier; |
| } |
| |
| /** |
| * Delegates the call to the backend to retrieve reference. |
| * |
| * @return |
| */ |
| public String getReference() { |
| return backend.getReferenceFromIdentifier(identifier); |
| } |
| |
| /** |
| * Returns the string representation of the data identifier. |
| * |
| * @return string representation |
| */ |
| public String toString() { |
| return identifier.toString(); |
| } |
| |
| /** |
| * Checks if the given object is a data record with the same identifier |
| * as this one. |
| * |
| * @param object other object |
| * @return <code>true</code> if the other object is a data record and has |
| * the same identifier as this one, <code>false</code> otherwise |
| */ |
| public boolean equals(Object object) { |
| return (object instanceof DataRecord) |
| && identifier.equals(((DataRecord) object).getIdentifier()); |
| } |
| |
| /** |
| * Returns the hash code of the data identifier. |
| * |
| * @return hash code |
| */ |
| public int hashCode() { |
| return identifier.hashCode(); |
| } |
| } |