Package liquibase.executor.jvm

Class ColumnMapRowMapper

java.lang.Object
liquibase.executor.jvm.ColumnMapRowMapper
All Implemented Interfaces:
RowMapper
public class ColumnMapRowMapper extends Object implements RowMapper
RowMapper implementation that creates a java.util.Map for each row, representing all columns as key-value pairs: one entry for each column, with the column name as key.

The Map implementation to use and the key to use for each column in the column Map can be customized through overriding createColumnMap(int) and getColumnKey(java.lang.String), respectively.

  • Constructor Details

    • ColumnMapRowMapper

      public ColumnMapRowMapper(boolean caseSensitiveDatabase)

  • Method Details

    • mapRow

      public Object mapRow(ResultSet rs, int rowNum) throws SQLException
      Description copied from interface: RowMapper
      Implementations must implement this method to map each row of data in the ResultSet. This method should not call next() on the ResultSet; it is only supposed to map values of the current row.
      Specified by:
      mapRow in interface RowMapper
      Parameters:
      rs - the ResultSet to map (pre-initialized for the current row)
      rowNum - the number of the current row
      Returns:
      the result object for the current row
      Throws:
      SQLException - if a SQLException is encountered getting column values (that is, there's no need to catch SQLException)

    • createColumnMap

      protected Map createColumnMap(int columnCount)
      Create a Map instance to be used as column map.
      Parameters:
      columnCount - the column count, to be used as initial capacity for the Map
      Returns:
      the new Map instance

    • getColumnKey

      protected String getColumnKey(String columnName)
      Determine the key to use for the given column in the column Map.
      Parameters:
      columnName - the column name (uppercase) as returned by the ResultSet
      Returns:
      the column key to use
      See Also:

    • getColumnValue

      protected Object getColumnValue(ResultSet rs, int index) throws SQLException
      Retrieve a JDBC object value for the specified column.

      The default implementation uses the getObject method. Additionally, this implementation includes a "hack" to get around Oracle returning a non standard object for their TIMESTAMP datatype.

      Parameters:
      rs - is the ResultSet holding the data
      index - is the column index
      Returns:
      the Object returned
      Throws:
      SQLException