/* * 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.flink.runtime.state.heap; import org.apache.flink.runtime.state.metainfo.StateMetaInfoSnapshot; import javax.annotation.Nonnull; import java.util.Objects; /** * Unique identifier for registered state in this backend. */ final class StateUID { @Nonnull private final String stateName; @Nonnull private final StateMetaInfoSnapshot.BackendStateType stateType; StateUID(@Nonnull String stateName, @Nonnull StateMetaInfoSnapshot.BackendStateType stateType) { this.stateName = stateName; this.stateType = stateType; } @Nonnull public String getStateName() { return stateName; } @Nonnull public StateMetaInfoSnapshot.BackendStateType getStateType() { return stateType; } @Override public boolean equals(Object o) { if (this == o) { return true; } if (o == null || getClass() != o.getClass()) { return false; } StateUID uid = (StateUID) o; return Objects.equals(getStateName(), uid.getStateName()) && getStateType() == uid.getStateType(); } @Override public int hashCode() { return Objects.hash(getStateName(), getStateType()); } public static StateUID of(@Nonnull String stateName, @Nonnull StateMetaInfoSnapshot.BackendStateType stateType) { return new StateUID(stateName, stateType); } }