| /** |
| * Copyright 2016 Yahoo Inc. |
| * |
| * Licensed 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.bookkeeper.mledger; |
| |
| import com.google.common.annotations.Beta; |
| |
| import io.netty.buffer.ByteBuf; |
| |
| /** |
| * An Entry represent a ledger entry data and its associated position. |
| */ |
| @Beta |
| public interface Entry { |
| |
| /** |
| * @return the data |
| */ |
| byte[] getData(); |
| |
| byte[] getDataAndRelease(); |
| |
| /** |
| * @return the entry length in bytes |
| */ |
| int getLength(); |
| |
| /** |
| * @return the data buffer for the entry |
| */ |
| ByteBuf getDataBuffer(); |
| |
| /** |
| * @return the position at which the entry was stored |
| */ |
| Position getPosition(); |
| |
| /** |
| * Release the resources (data) allocated for this entry and recycle if all the resources are deallocated (ref-count |
| * of data reached to 0) |
| */ |
| boolean release(); |
| } |