org.dbforms.event
Class AbstractNavigationEvent

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

Direct Known Subclasses:

GotoEvent, GotoEvent, NavCopyEvent, NavFirstEvent, NavFirstEvent, NavLastEvent, NavLastEvent, NavNewEvent, NavNextEvent, NavNextEvent, NavPrevEvent, NavPrevEvent, ReloadEvent

public abstract class AbstractNavigationEvent
extends AbstractWebEvent

Abstract base class for all web-events related to navigation.

Author:

Joe Peer

Constructor Summary

AbstractNavigationEvent(String action, HttpServletRequest request, DbFormsConfig config)
called by event engine

AbstractNavigationEvent(Table table, HttpServletRequest request, DbFormsConfig config)
called by DbFormsTag to create local web event

Method Summary

abstract 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

AbstractNavigationEvent

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

called by event engine

Parameters:

action - DOCUMENT ME!

request - DOCUMENT ME!

config - DOCUMENT ME!

AbstractNavigationEvent

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

called by DbFormsTag to create local web event

Parameters:

table - DOCUMENT ME!

request - DOCUMENT ME!

config - DOCUMENT ME!

Method Detail

processEvent

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

Process the current event.

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