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 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
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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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package org.apache.commons.pool2.impl;

import org.apache.commons.pool2.PooledObject;

Provides the default implementation of EvictionPolicy used by the pools. Objects will be evicted if the following conditions are met:

This class is immutable and thread-safe.

Type parameters:
  • <T> – the type of objects in the pool
Since:2.0
/** * Provides the default implementation of {@link EvictionPolicy} used by the * pools. Objects will be evicted if the following conditions are met: * <ul> * <li>the object has been idle longer than * {@link GenericObjectPool#getMinEvictableIdleTimeMillis()} / * {@link GenericKeyedObjectPool#getMinEvictableIdleTimeMillis()}</li> * <li>there are more than {@link GenericObjectPool#getMinIdle()} / * {@link GenericKeyedObjectPoolConfig#getMinIdlePerKey()} idle objects in * the pool and the object has been idle for longer than * {@link GenericObjectPool#getSoftMinEvictableIdleTimeMillis()} / * {@link GenericKeyedObjectPool#getSoftMinEvictableIdleTimeMillis()} * </ul> * <p> * This class is immutable and thread-safe. * </p> * * @param <T> the type of objects in the pool * * @since 2.0 */
public class DefaultEvictionPolicy<T> implements EvictionPolicy<T> { @Override public boolean evict(final EvictionConfig config, final PooledObject<T> underTest, final int idleCount) { if ((config.getIdleSoftEvictTime() < underTest.getIdleTimeMillis() && config.getMinIdle() < idleCount) || config.getIdleEvictTime() < underTest.getIdleTimeMillis()) { return true; } return false; } }