| /* |
| * 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.cassandra.db.rows; |
| |
| import java.nio.ByteBuffer; |
| |
| import org.apache.cassandra.config.ColumnDefinition; |
| import org.apache.cassandra.db.marshal.ByteType; |
| import org.apache.cassandra.utils.ByteBufferUtil; |
| import org.apache.cassandra.utils.ObjectSizes; |
| import org.apache.cassandra.utils.memory.AbstractAllocator; |
| |
| public class BufferCell extends AbstractCell |
| { |
| private static final long EMPTY_SIZE = ObjectSizes.measure(new BufferCell(ColumnDefinition.regularDef("", "", "", ByteType.instance), 0L, 0, 0, ByteBufferUtil.EMPTY_BYTE_BUFFER, null)); |
| |
| private final long timestamp; |
| private final int ttl; |
| private final int localDeletionTime; |
| |
| private final ByteBuffer value; |
| private final CellPath path; |
| |
| public BufferCell(ColumnDefinition column, long timestamp, int ttl, int localDeletionTime, ByteBuffer value, CellPath path) |
| { |
| super(column); |
| assert !column.isPrimaryKeyColumn(); |
| assert column.isComplex() == (path != null); |
| this.timestamp = timestamp; |
| this.ttl = ttl; |
| this.localDeletionTime = localDeletionTime; |
| this.value = value; |
| this.path = path; |
| } |
| |
| public static BufferCell live(ColumnDefinition column, long timestamp, ByteBuffer value) |
| { |
| return live(column, timestamp, value, null); |
| } |
| |
| public static BufferCell live(ColumnDefinition column, long timestamp, ByteBuffer value, CellPath path) |
| { |
| return new BufferCell(column, timestamp, NO_TTL, NO_DELETION_TIME, value, path); |
| } |
| |
| public static BufferCell expiring(ColumnDefinition column, long timestamp, int ttl, int nowInSec, ByteBuffer value) |
| { |
| return expiring(column, timestamp, ttl, nowInSec, value, null); |
| } |
| |
| public static BufferCell expiring(ColumnDefinition column, long timestamp, int ttl, int nowInSec, ByteBuffer value, CellPath path) |
| { |
| assert ttl != NO_TTL; |
| return new BufferCell(column, timestamp, ttl, nowInSec + ttl, value, path); |
| } |
| |
| public static BufferCell tombstone(ColumnDefinition column, long timestamp, int nowInSec) |
| { |
| return tombstone(column, timestamp, nowInSec, null); |
| } |
| |
| public static BufferCell tombstone(ColumnDefinition column, long timestamp, int nowInSec, CellPath path) |
| { |
| return new BufferCell(column, timestamp, NO_TTL, nowInSec, ByteBufferUtil.EMPTY_BYTE_BUFFER, path); |
| } |
| |
| public long timestamp() |
| { |
| return timestamp; |
| } |
| |
| public int ttl() |
| { |
| return ttl; |
| } |
| |
| public int localDeletionTime() |
| { |
| return localDeletionTime; |
| } |
| |
| public ByteBuffer value() |
| { |
| return value; |
| } |
| |
| public CellPath path() |
| { |
| return path; |
| } |
| |
| public Cell withUpdatedColumn(ColumnDefinition newColumn) |
| { |
| return new BufferCell(newColumn, timestamp, ttl, localDeletionTime, value, path); |
| } |
| |
| public Cell withUpdatedValue(ByteBuffer newValue) |
| { |
| return new BufferCell(column, timestamp, ttl, localDeletionTime, newValue, path); |
| } |
| |
| public Cell copy(AbstractAllocator allocator) |
| { |
| if (!value.hasRemaining()) |
| return this; |
| |
| return new BufferCell(column, timestamp, ttl, localDeletionTime, allocator.clone(value), path == null ? null : path.copy(allocator)); |
| } |
| |
| public long unsharedHeapSizeExcludingData() |
| { |
| return EMPTY_SIZE + ObjectSizes.sizeOnHeapExcludingData(value) + (path == null ? 0 : path.unsharedHeapSizeExcludingData()); |
| } |
| } |