Package migratedb.v1.core.api.internal.jdbc

Class JdbcTemplate

java.lang.Object
migratedb.v1.core.api.internal.jdbc.JdbcTemplate
Direct Known Subclasses:
BigQueryJdbcTemplate, SpannerJdbcTemplate
public class JdbcTemplate extends Object
Collection of utility methods for querying the DB. Inspired by Spring's JdbcTemplate.

  • Field Details

    • connection

      protected final Connection connection
      The DB connection to use.

    • nullType

      protected final int nullType
      The type to assign to a null value.

  • Constructor Details

    • JdbcTemplate

      public JdbcTemplate(Connection connection, DatabaseType databaseType)
      Creates a new JdbcTemplate.
      Parameters:
      connection - The database connection to use.

  • Method Details

    • getConnection

      public Connection getConnection()
      Returns:
      The DB connection to use.

    • queryForList

      public List<Map<String,String>> queryForList(String query, Object... params) throws SQLException
      Executes this query with these parameters against this connection.
      Parameters:
      query - The query to execute.
      params - The query parameters.
      Returns:
      The query results.
      Throws:
      SQLException - when the query execution failed.

    • queryForStringList

      public List<String> queryForStringList(String query, String... params) throws SQLException
      Executes this query with these parameters against this connection.
      Parameters:
      query - The query to execute.
      params - The query parameters.
      Returns:
      The query results as a list of strings.
      Throws:
      SQLException - when the query execution failed.

    • queryForInt

      public int queryForInt(String query, String... params) throws SQLException
      Executes this query with these parameters against this connection.
      Parameters:
      query - The query to execute.
      params - The query parameters.
      Returns:
      The query result.
      Throws:
      SQLException - when the query execution failed.

    • queryForBoolean

      public boolean queryForBoolean(String query, String... params) throws SQLException
      Executes this query with these parameters against this connection.
      Parameters:
      query - The query to execute.
      params - The query parameters.
      Returns:
      The query result.
      Throws:
      SQLException - when the query execution failed.

    • queryForString

      public String queryForString(String query, String... params) throws SQLException
      Executes this query with these parameters against this connection.
      Parameters:
      query - The query to execute.
      params - The query parameters.
      Returns:
      The query result.
      Throws:
      SQLException - when the query execution failed.

    • execute

      public void execute(String sql, Object... params) throws SQLException
      Executes this sql statement using a PreparedStatement.
      Parameters:
      sql - The statement to execute.
      params - The statement parameters.
      Throws:
      SQLException - when the execution failed.

    • executeStatement

      public Results executeStatement(String sql)
      Executes this sql statement using an ordinary Statement.
      Parameters:
      sql - The statement to execute.
      Returns:
      the results of the execution.

    • extractErrors

      public void extractErrors(Results results, SQLException e)

    • update

      public void update(String sql, Object... params) throws SQLException
      Executes this update sql statement.
      Parameters:
      sql - The statement to execute.
      params - The statement parameters.
      Throws:
      SQLException - when the execution failed.

    • prepareStatement

      protected PreparedStatement prepareStatement(String sql, Object[] params) throws SQLException
      Creates a new prepared statement for this sql with these params.
      Parameters:
      sql - The sql to execute.
      params - The params.
      Returns:
      The new prepared statement.
      Throws:
      SQLException - when the statement could not be prepared.

    • query

      public <T> List<T> query(String sql, RowMapper<T> rowMapper, Object... params) throws SQLException
      Executes this query and map the results using this row mapper.
      Type Parameters:
      T - The type of the result objects.
      Parameters:
      sql - The query to execute.
      rowMapper - The row mapper to use.
      Returns:
      The list of results.
      Throws:
      SQLException - when the query failed to execute.