org.apache.jackrabbit.core.data.db.DbDataRecord Maven / Gradle / Ivy
/*
* 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.core.data.db;
import org.apache.jackrabbit.core.data.AbstractDataRecord;
import org.apache.jackrabbit.core.data.DataIdentifier;
import org.apache.jackrabbit.core.data.DataStoreException;
import java.io.BufferedInputStream;
import java.io.InputStream;
/**
* Data record that is stored in a database
*/
public class DbDataRecord extends AbstractDataRecord {
protected final DbDataStore store;
protected final long length;
protected long lastModified;
/**
* Creates a data record based on the given identifier and length.
*
* @param identifier data identifier
* @param length the length
* @param lastModified
*/
public DbDataRecord(DbDataStore store, DataIdentifier identifier, long length, long lastModified) {
super(store, identifier);
this.store = store;
this.length = length;
this.lastModified = lastModified;
}
/**
* {@inheritDoc}
*/
public long getLength() throws DataStoreException {
lastModified = store.touch(getIdentifier(), lastModified);
return length;
}
/**
* {@inheritDoc}
*/
public InputStream getStream() throws DataStoreException {
lastModified = store.touch(getIdentifier(), lastModified);
return new BufferedInputStream(new DbInputStream(store, getIdentifier()));
}
/**
* {@inheritDoc}
*/
public long getLastModified() {
return lastModified;
}
}