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JDBC driver for ClickHouse

There is a newer version: 0.6.5

package com.clickhouse.jdbc;

import java.sql.SQLException;

public abstract class JdbcWrapper {
    public  T unwrap(Class iface) throws SQLException {
        if (iface.isAssignableFrom(getClass())) {
            return iface.cast(this);
        }

        throw SqlExceptionUtils.unsupportedError("Cannot unwrap to " + iface.getName());
    }

    public boolean isWrapperFor(Class iface) throws SQLException {
        return iface.isAssignableFrom(getClass());
    }
}