/*
* Licensed 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
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* http://www.apache.org/licenses/LICENSE-2.0
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* See the License for the specific language governing permissions and
* limitations under the License.
*
* Other licenses:
* -----------------------------------------------------------------------------
* Commercial licenses for this work are available. These replace the above
* ASL 2.0 and offer limited warranties, support, maintenance, and commercial
* database integrations.
*
* For more information, please visit: http://www.jooq.org/licenses
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*/
package org.jooq;
import org.jooq.impl.DefaultExecuteListenerProvider;
/**
* A provider for {@link ExecuteListener} instances.
* <p>
* In order to facilitate the lifecycle management of
* <code>ExecuteListener</code> instances that are provided to a jOOQ
* {@link Configuration}, clients can implement this API. To jOOQ, it is thus
* irrelevant, if execute listeners are stateful or stateless, local to an
* execution, or global to an application.
*
* @author Lukas Eder
* @see ExecuteListener
* @see Configuration
*/
@FunctionalInterface
public interface ExecuteListenerProvider {
/**
* Provide an <code>ExecuteListener</code> instance.
* <p>
* Implementations are free to choose whether this method returns new
* instances at every call or whether the same instance is returned
* repetitively.
* <p>
* An <code>ExecuteListener</code> shall be provided exactly once per query
* execution lifecycle, i.e. per <code>ExecuteContext</code>.
*
* @return An <code>ExecuteListener</code> instance.
* @see ExecuteListener
* @see ExecuteContext
* @see DefaultExecuteListenerProvider
*/
ExecuteListener provide();
}