/** * 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.ambari.server.state.stack.upgrade; import javax.xml.bind.annotation.XmlRootElement; import javax.xml.bind.annotation.XmlSeeAlso; import org.apache.ambari.server.state.UpgradeContext; import org.apache.ambari.server.state.stack.UpgradePack; import org.apache.ambari.server.state.stack.upgrade.ClusterGrouping.ExecuteStage; /** * The {@link Condition} interface represents a condition in an * {@link UpgradePack} which must be satisified in order for a {@link Grouping} * or {@link ExecuteStage} to be scheduled. */ @XmlRootElement @XmlSeeAlso(value = { SecurityCondition.class, ConfigurationCondition.class }) public class Condition { /** * Asks the condition whether it is currently satisfied. * * @param upgradeContext * the upgrade context. * @return {@code true} if the condition is satisfied, {@code false} * otherwise. */ public boolean isSatisfied(UpgradeContext upgradeContext) { return false; } }