/*
* 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.pagemem.wal.record.delta;
import org.apache.ignite.IgniteCheckedException;
import org.apache.ignite.internal.pagemem.PageMemory;
import org.apache.ignite.internal.processors.cache.database.tree.io.DataPageIO;
/**
* Update existing record in data page.
*/
public class DataPageUpdateRecord extends PageDeltaRecord {
/** */
private int itemId;
/** */
private byte[] payload;
/**
* @param cacheId Cache ID.
* @param pageId Page ID.
* @param itemId Item ID.
* @param payload Record data.
*/
public DataPageUpdateRecord(
int cacheId,
long pageId,
int itemId,
byte[] payload
) {
super(cacheId, pageId);
this.payload = payload;
this.itemId = itemId;
}
/**
* @return Item ID.
*/
public int itemId() {
return itemId;
}
/**
* @return Insert record payload.
*/
public byte[] payload() {
return payload;
}
/** {@inheritDoc} */
@Override public void applyDelta(PageMemory pageMem, long pageAddr) throws IgniteCheckedException {
assert payload != null;
DataPageIO io = DataPageIO.VERSIONS.forPage(pageAddr);
io.updateRow(pageAddr, itemId, pageMem.pageSize(), payload, null, 0);
}
/** {@inheritDoc} */
@Override public RecordType type() {
return RecordType.DATA_PAGE_UPDATE_RECORD;
}
}