com.pow2.dbforms
Class Interceptor

java.lang.Object
  org.dbforms.event.DbEventInterceptorSupport
      com.pow2.dbforms.Interceptor

All Implemented Interfaces:

DbEventInterceptor

public class Interceptor

extends DbEventInterceptorSupport

DbForm interceptor (hook up class).
Note: do not close connection objects used in DbEventInterceptor methods.

Author:

Luca Fossato

Field Summary

protected static org.apache.log4j.Category

cat Log4j category

Fields inherited from interface org.dbforms.config.DbEventInterceptor

DENY_OPERATION, GRANT_OPERATION, IGNORE_OPERATION, POST_DELETE, POST_INSERT, POST_SELECT, POST_UPDATE, PRE_DELETE, PRE_INSERT, PRE_SELECT, PRE_UPDATE

Constructor Summary

Interceptor()

Method Summary

protected int	delete(Connection con, FieldValues fieldValues, String tableName, String keyFieldName, boolean isKeyAString) Delete a record with a non composite key from the input table.
protected int	delete(String tableName, String cond, Connection con) Delete all the records of the input table that match the input condition.
protected long	getNewKey() Return a new unique key.

Methods inherited from class org.dbforms.event.DbEventInterceptorSupport

getParams, postDelete, postInsert, postSelect, postUpdate, preDelete, preInsert, preSelect, preUpdate, setParams, setValue

Methods inherited from class java.lang.Object

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

Field Detail

cat

protected static org.apache.log4j.Category cat

Log4j category

Constructor Detail

Interceptor

public Interceptor()

Method Detail

delete

protected int delete(Connection con,
                     FieldValues fieldValues,
                     String tableName,
                     String keyFieldName,
                     boolean isKeyAString)
              throws ValidationException

Delete a record with a non composite key from the input table.

Parameters:

con - the JDBC connection object

fieldValues - the fieldValues object taken from the interceptor interface

tableName - the table name of the record to delete

keyFieldName - the name of the NON composite key field

isKeyAString - yes if the key value type is string; false otherwise

Returns:

the opertaion code value specified by the dbForms' interceptor interface

Throws:

ValidationException - if any error occurs

delete

protected int delete(String tableName,
                     String cond,
                     Connection con)
              throws ValidationException

Delete all the records of the input table that match the input condition.

Parameters:

tableName - the name of the database table

cond - the SQL condition string (a WHERE clause without the 'where' world)

con - the connection object

Returns:

GRANT_OPERATION if the delete function is successfull

Throws:

ValidationException - if any error occurs

getNewKey

protected long getNewKey()
                  throws ValidationException

Return a new unique key.

Returns:

a new unique key

Throws:

ValidationException - if any error occurs