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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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package org.apache.tomcat.jdbc.pool;
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import java.sql.Connection;
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* Interface to be implemented by custom validator classes.
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public interface Validator {
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* Validate a connection and return a boolean to indicate if it's valid.
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* @param connection the Connection object to test
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* @param validateAction the action used. One of {@link PooledConnection#VALIDATE_BORROW},
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* {@link PooledConnection#VALIDATE_IDLE}, {@link PooledConnection#VALIDATE_INIT} or
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* {@link PooledConnection#VALIDATE_RETURN}
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* @return true if the connection is valid
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public boolean validate(Connection connection, int validateAction);