| /* |
| * 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.slider.providers; |
| |
| /** |
| * Placement values. |
| * This is nominally a bitmask, though not all values make sense |
| */ |
| public class PlacementPolicy { |
| |
| /** |
| * Default value: history used, anti-affinity hinted at on rebuild/flex up |
| */ |
| public static final int NONE = 0; |
| |
| /** |
| * Default value: history used, anti-affinity hinted at on rebuild/flex up |
| */ |
| public static final int DEFAULT = NONE; |
| |
| /** |
| * Strict placement: when asking for an instance for which there is |
| * history, mandate that it is strict |
| */ |
| public static final int STRICT = 1; |
| |
| /** |
| * No data locality; do not use placement history |
| */ |
| public static final int NO_DATA_LOCALITY = 2; |
| |
| /** |
| * Anti-affinity is mandatory. |
| */ |
| public static final int ANTI_AFFINITY_REQUIRED = 4; |
| |
| /** |
| * Exclude from flexing; used internally to mark AMs. |
| */ |
| public static final int EXCLUDE_FROM_FLEXING = 16; |
| |
| } |