Package groovy.sql

Class Sql.AbstractQueryCommand

java.lang.Object
groovy.sql.Sql.AbstractQueryCommand
Enclosing class:
Sql

protected abstract class Sql.AbstractQueryCommand extends Object
  • Field Details

    • sql

      protected final String sql
    • statement

      protected Statement statement
  • Constructor Details

    • AbstractQueryCommand

      protected AbstractQueryCommand(String sql)
  • Method Details

    • execute

      protected final ResultSet execute() throws SQLException
      Execute the command that's defined by the subclass following the Command pattern. Specialized parameters are held in the command instances.
      Returns:
      ResultSet from executing a query
      Throws:
      SQLException - if a database error occurs
    • closeResources

      protected final void closeResources()
      After performing the execute operation and making use of its return, it's necessary to free the resources allocated for the statement.
    • closeResources

      protected final void closeResources(ResultSet rs)
      After performing the execute operation and making use of its return, it's necessary to free the resources allocated for the statement.
      Parameters:
      rs - allows the caller to conveniently close its resource as well
    • runQuery

      protected abstract ResultSet runQuery(Connection connection) throws SQLException
      Perform the query. Must set statement field so that the main (execute()) method can clean up. This is the method that encloses the variant part of the code.
      Parameters:
      connection - the connection to use
      Returns:
      ResultSet from an executeQuery method.
      Throws:
      SQLException - if a database error occurs