/*
* Copyright 1999-2011 Alibaba Group Holding Ltd.
*
* 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
*
* 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 com.alibaba.druid.pool;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import com.alibaba.druid.pool.PoolablePreparedStatement.PreparedStatementKey;
/**
* @author wenshao<szujobs@hotmail.com>
*/
public class PreparedStatementPool {
private HashMap<PreparedStatementKey, List<PoolablePreparedStatement>> map = new HashMap<PreparedStatementKey, List<PoolablePreparedStatement>>();
public static enum MethodType {
M1, M2, M3, M4, M5, M6, Precall_1, Precall_2, Precall_3
}
public PoolablePreparedStatement get(PreparedStatementKey key) {
List<PoolablePreparedStatement> list = map.get(key);
if (list == null) {
list = new ArrayList<PoolablePreparedStatement>();
map.put(key, list);
return null;
}
int size = list.size();
if (size == 0) {
return null;
}
PoolablePreparedStatement last = list.remove(size - 1);
return last;
}
public void put(PoolablePreparedStatement poolableStatement) {
PreparedStatementKey key = poolableStatement.getKey();
List<PoolablePreparedStatement> list = map.get(key);
if (list == null) {
list = new ArrayList<PoolablePreparedStatement>();
map.put(key, list);
}
list.add(poolableStatement);
}
public HashMap<PreparedStatementKey, List<PoolablePreparedStatement>> getMap() {
return map;
}
}