| /* |
| * 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.skywalking.oap.server.core.storage; |
| |
| import java.util.List; |
| |
| /** |
| * A blocking queue implementation for persistent process. |
| * Poll method only returns when it matches the threshold or no further appending declared. |
| */ |
| interface BlockingBatchQueue<E> { |
| List<E> poll() throws InterruptedException; |
| |
| void offer(List<E> elements); |
| |
| void noFurtherAppending(); |
| |
| void furtherAppending(); |
| |
| int size(); |
| } |