| /* |
| * 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.tomcat.dbcp.pool2; |
| |
| /** |
| * Provides the possible states that a {@link PooledObject} may be in. |
| * |
| * @since 2.0 |
| */ |
| public enum PooledObjectState { |
| /** |
| * In the queue, not in use. |
| */ |
| IDLE, |
| |
| /** |
| * In use. |
| */ |
| ALLOCATED, |
| |
| /** |
| * In the queue, currently being tested for possible eviction. |
| */ |
| EVICTION, |
| |
| /** |
| * Not in the queue, currently being tested for possible eviction. An |
| * attempt to borrow the object was made while being tested which removed it |
| * from the queue. It should be returned to the head of the queue once |
| * eviction testing completes. |
| * TODO: Consider allocating object and ignoring the result of the eviction |
| * test. |
| */ |
| EVICTION_RETURN_TO_HEAD, |
| |
| /** |
| * In the queue, currently being validated. |
| */ |
| VALIDATION, |
| |
| /** |
| * Not in queue, currently being validated. The object was borrowed while |
| * being validated and since testOnBorrow was configured, it was removed |
| * from the queue and pre-allocated. It should be allocated once validation |
| * completes. |
| */ |
| VALIDATION_PREALLOCATED, |
| |
| /** |
| * Not in queue, currently being validated. An attempt to borrow the object |
| * was made while previously being tested for eviction which removed it from |
| * the queue. It should be returned to the head of the queue once validation |
| * completes. |
| */ |
| VALIDATION_RETURN_TO_HEAD, |
| |
| /** |
| * Failed maintenance (e.g. eviction test or validation) and will be / has |
| * been destroyed |
| */ |
| INVALID, |
| |
| /** |
| * Deemed abandoned, to be invalidated. |
| */ |
| ABANDONED, |
| |
| /** |
| * Returning to the pool. |
| */ |
| RETURNING |
| } |