org.dbforms.event.datalist
Class NavPrevEvent

java.lang.Object
  org.dbforms.event.AbstractWebEvent
      org.dbforms.event.AbstractNavigationEvent
          org.dbforms.event.datalist.NavPrevEvent

public class NavPrevEvent
extends AbstractNavigationEvent

This event scrolls the current ResultSet to the previous row of data.
Provides bounded navigation.
Works with new factory classes

Author:

Henner Kollmann

Constructor Summary

NavPrevEvent(String action, HttpServletRequest request, DbFormsConfig config)
Constructor.

NavPrevEvent(Table table, HttpServletRequest request, DbFormsConfig config)
Constructor used for call from localevents.

Method Summary

ResultSetVector

processEvent(FieldValue[] filterFieldValues, FieldValue[] orderConstraint, String sqlFilter, FieldValue[] sqlFilterParams, int count, String firstPosition, String lastPosition, DbEventInterceptorData interceptorData) Process the current event.

Methods inherited from class org.dbforms.event.AbstractWebEvent

getConfig, getFollowUp, getFollowUpOnError, getProperties, getRequest, getTable, getType, hasUserPrivileg, setFollowUp, setFollowUpOnError, setProperties, setRequest, setTable, setType

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NavPrevEvent

public NavPrevEvent(String action,
                    HttpServletRequest request,
                    DbFormsConfig config)

Constructor.

Parameters:

action - the action string

request - the request object

config - the config object

NavPrevEvent

public NavPrevEvent(Table table,
                    HttpServletRequest request,
                    DbFormsConfig config)

Constructor used for call from localevents.

Parameters:

table - the Table object

request - DOCUMENT ME!

config - the config object

Method Detail

processEvent

public ResultSetVector processEvent(FieldValue[] filterFieldValues,
                                    FieldValue[] orderConstraint,
                                    String sqlFilter,
                                    FieldValue[] sqlFilterParams,
                                    int count,
                                    String firstPosition,
                                    String lastPosition,
                                    DbEventInterceptorData interceptorData)
                             throws SQLException

Process the current event.

Specified by:

processEvent in class AbstractNavigationEvent

Parameters:

filterFieldValues - FieldValue array used to restrict a set of data

orderConstraint - FieldValue array used to build a cumulation of rules for ordering (sorting) and restricting fields to the actual block of data

sqlFilter - DOCUMENT ME!

sqlFilterParams - DOCUMENT ME!

count - record count

firstPosition - a string identifying the first resultset position

lastPosition - a string identifying the last resultset position

dbConnectionName - name of the used db connection. Can be used to get an own db connection, e.g. to hold it during the session (see DataSourceJDBC for example!)

con - the JDBC Connection object

Returns:

a ResultSetVector object

Throws:

SQLException - if any error occurs