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   package net.sourceforge.backpedal.api.core;
   
   import net.sourceforge.backpedal.api.db.BindVariableSet;
   import net.sourceforge.backpedal.api.db.TableMetadata;
   
   import java.sql.Connection;
   import java.util.Collection;
   
   public interface BindVariableResolver {
      /***
       * For all the rows affected by parsedStatement, return a BindVariableSet
       * instance that contains the current values for all thr columns affected by parsedStatement.
       *
       * @param parsedStatement a SQL statement that is about to execute on the database
       * @param bindVariableSet the bind variables that will be used to populate parsedStatement
       * @param tableMetadata description of the columns in the table being affected by parsedStatement
       * @param connection a real JDBC connection to the database (so that current values can be read)
       * @return a collection of BindVariableSet instances, one for each row affected by parsedStatement.
       * Each BindVariableSet will contain the current values for the columns being affected in each row.
       */
      public Collection getBindVariableSetsForMutatedRows(ParsedStatement parsedStatement, BindVariableSet bindVariableSet,TableMetadata tableMetadata,Connection connection);
  }