Examples of org.apache.tomcat.dbcp.dbcp2.PoolingConnection

org.apache.tomcat.dbcp.dbcp2.SwallowedExceptionLogger
A {@link DelegatingConnection} that pools {@link PreparedStatement}s.
The {@link #prepareStatement} and {@link #prepareCall} methods, rather thancreating a new PreparedStatement each time, may actually pull the statement from a pool of unused statements. The {@link PreparedStatement#close} method of the returned statement doesn'tactually close the statement, but rather returns it to the pool. (See {@link PoolablePreparedStatement}, {@link PoolableCallableStatement}.) @see PoolablePreparedStatement @author Rodney Waldhoff @author Dirk Verbeeck @since 2.0

        if (conn == null) {
            throw new IllegalStateException("Connection factory returned null from createConnection");
        }
        initializeConnection(conn);
        if(getPoolStatements()) {
            conn = new PoolingConnection(conn);
            GenericKeyedObjectPoolConfig config = new GenericKeyedObjectPoolConfig();
            config.setMaxTotalPerKey(-1);
            config.setBlockWhenExhausted(false);
            config.setMaxWaitMillis(0);
            config.setMaxIdlePerKey(1);

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     */
    @Override
    public PreparedStatement prepareStatement(String sql) throws SQLException {
        checkOpen();
        try {
            return new DelegatingPreparedStatement
                (this, pooledConnection.prepareStatement(sql));
        }
        catch (SQLException e) {
            handleException(e); // Does not return
            return null;

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    public PreparedStatement prepareStatement(String sql, int resultSetType,
                                              int resultSetConcurrency)
            throws SQLException {
        checkOpen();
        try {
            return new DelegatingPreparedStatement
                (this, pooledConnection.prepareStatement
                    (sql,resultSetType,resultSetConcurrency));
        }
        catch (SQLException e) {
            handleException(e);

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                                              int resultSetConcurrency,
                                              int resultSetHoldability)
            throws SQLException {
        checkOpen();
        try {
            return new DelegatingPreparedStatement(this,
                    pooledConnection.prepareStatement(sql, resultSetType,
                            resultSetConcurrency, resultSetHoldability));
        }
        catch (SQLException e) {
            handleException(e);

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    @Override
    public PreparedStatement prepareStatement(String sql, int autoGeneratedKeys)
            throws SQLException {
        checkOpen();
        try {
            return new DelegatingPreparedStatement(this,
                    pooledConnection.prepareStatement(sql, autoGeneratedKeys));
        }
        catch (SQLException e) {
            handleException(e);
            return null;

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    @Override
    public PreparedStatement prepareStatement(String sql, int columnIndexes[])
            throws SQLException {
        checkOpen();
        try {
            return new DelegatingPreparedStatement(this,
                    pooledConnection.prepareStatement(sql, columnIndexes));
        }
        catch (SQLException e) {
            handleException(e);
            return null;

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    @Override
    public PreparedStatement prepareStatement(String sql, String columnNames[])
            throws SQLException {
        checkOpen();
        try {
            return new DelegatingPreparedStatement(this,
                    pooledConnection.prepareStatement(sql, columnNames));
        }
        catch (SQLException e) {
            handleException(e);
            return null;

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        pool.setTestOnReturn(getPerUserTestOnReturn(username));
        pool.setTestWhileIdle(getPerUserTestWhileIdle(username));
        pool.setTimeBetweenEvictionRunsMillis(
                getPerUserTimeBetweenEvictionRunsMillis(username));


        pool.setSwallowedExceptionListener(new SwallowedExceptionLogger(log));


        Object old = managers.put(getPoolKey(username), factory);
        if (old != null) {
            throw new IllegalStateException("Pool already contains an entry for this user/password: " + username);
        }

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org.apache.tomcat.dbcp.dbcp2.DelegatingPreparedStatement

org.apache.tomcat.dbcp.dbcp2.SwallowedExceptionLogger

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