com.mchange.v2.c3p0.impl.AbstractC3P0PooledConnection Maven / Gradle / Ivy

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There is a newer version: 0.9.5.2_1

package com.mchange.v2.c3p0.impl;

import java.sql.Connection;
import java.sql.SQLException;
import javax.sql.PooledConnection;
import java.util.concurrent.locks.ReentrantLock;
import com.mchange.v2.c3p0.stmt.GooGooStatementCache;
import com.mchange.v1.util.ClosableResource;

abstract class AbstractC3P0PooledConnection implements PooledConnection, ClosableResource
{
    // thread-safe post c'tor constant, accessed directly by C3P0PooledConnectionPool
    // since the StatementCache "in-use" marker doesn't nest, we have to ensure that
    // internal Connection tests don't overlap. (External use, due to checkout,
    // is no problem, no internal operation are performed on checked-out PooledConnections
    final ReentrantLock inInternalUseLock = new ReentrantLock();

    abstract Connection getPhysicalConnection();
    abstract void initStatementCache(GooGooStatementCache scache);
    abstract void closeMaybeCheckedOut( boolean checked_out ) throws SQLException;
}