com.interface21.jdbc.core
Interface DataFieldMaxValueIncrementer

All Known Implementing Classes:

AbstractDataFieldMaxValueIncrementer

public interface DataFieldMaxValueIncrementer

Interface that defines contract of incrementing any data store field's maximum value. Works much like sequence number generator. Typical implementations could use RDBMS SQL and/or Stored Procedures to do the job.

History:

17/04/2003 : donated to Spring by Dmitriy Kopylenko

19/04/2003 : modified by Isabelle Muszynski, added nextDoubleValue

09/05/2003 : modified by JPP, added nextLongValue

Version:

$Id: DataFieldMaxValueIncrementer.java,v 1.6 2003/06/10 17:50:26 dkopylenko Exp $

Author:

Dmitriy Kopylenko, Isabelle Muszynski, Jean-Pierre Pawlak

Method Summary

double	nextDoubleValue() Increments data store field's max value as double
int	nextIntValue() Increments data store field's max value as int
long	nextLongValue() Increments data store field's max value as long
java.lang.String	nextStringValue() Increments data store field's max value as String
java.lang.Object	nextValue(java.lang.Class keyClass) Generic method to retrieve the next value.

Method Detail

nextIntValue

public int nextIntValue()
                 throws DataAccessException

Increments data store field's max value as int

Returns:

int next data store value such as max + 1

Throws:

DataAccessException -

nextLongValue

public long nextLongValue()
                   throws DataAccessException

Increments data store field's max value as long

Returns:

int next data store value such as max + 1

Throws:

DataAccessException -

nextDoubleValue

public double nextDoubleValue()
                       throws DataAccessException

Increments data store field's max value as double

Returns:

next data store value such as max + 1

Throws:

DataAccessException -

nextStringValue

public java.lang.String nextStringValue()
                                 throws DataAccessException

Increments data store field's max value as String

Returns:

next data store value such as max + 1

Throws:

DataAccessException -

nextValue

public java.lang.Object nextValue(java.lang.Class keyClass)
                           throws DataAccessException

Generic method to retrieve the next value. Legal values for keyClass are int.class, double.class, String.class, Integer.class and Double.class

Throws:

java.lang.IllegalArgumentException - if keyClass is not one of the expected types

DataAccessException -