org.apache.cocoon.acting
Class DatabaseDeleteAction

java.lang.Object
  |
  +--org.apache.avalon.framework.logger.AbstractLoggable
        |
        +--org.apache.cocoon.acting.AbstractAction
              |
              +--org.apache.cocoon.acting.AbstractConfigurableAction
                    |
                    +--org.apache.cocoon.acting.ConfigurableComposerAction
                          |
                          +--org.apache.cocoon.acting.AbstractComplementaryConfigurableAction
                                |
                                +--org.apache.cocoon.acting.AbstractDatabaseAction
                                      |
                                      +--org.apache.cocoon.acting.DatabaseDeleteAction

All Implemented Interfaces:

Action, org.apache.avalon.framework.component.Component, org.apache.avalon.framework.component.Composable, org.apache.avalon.framework.configuration.Configurable, org.apache.avalon.framework.activity.Disposable, org.apache.avalon.framework.logger.Loggable, org.apache.avalon.framework.thread.ThreadSafe

public final class DatabaseDeleteAction

extends AbstractDatabaseAction

implements org.apache.avalon.framework.thread.ThreadSafe

Delete a record from a database. This Action assumes that all dependant data is either automatically cleaned up by cascading deletes, or that multiple instances of this action are being used in the correct order. In other words, it removes one record by the keys.

Version:

CVS $Id: DatabaseDeleteAction.java,v 1.7.2.1 2002/08/25 09:12:09 haul Exp $

Author:

Berin Loritsch

Fields inherited from class org.apache.cocoon.acting.AbstractDatabaseAction

dbselector, files, typeConstants

Fields inherited from class org.apache.cocoon.acting.ConfigurableComposerAction

manager

Fields inherited from class org.apache.cocoon.acting.AbstractConfigurableAction

settings

Fields inherited from class org.apache.cocoon.acting.AbstractAction

EMPTY_MAP

Fields inherited from interface org.apache.cocoon.acting.Action

ROLE

Constructor Summary

DatabaseDeleteAction()

Method Summary

java.util.Map

act(Redirector redirector, SourceResolver resolver, java.util.Map objectModel, java.lang.String source, org.apache.avalon.framework.parameters.Parameters param) Delete a record from the database.

Methods inherited from class org.apache.cocoon.acting.AbstractDatabaseAction

compose, dispose, getColumn, getDataSource, getRequestAttribute, isLargeObject, setColumn, setColumn, setColumn, setColumn, setRequestAttribute

Methods inherited from class org.apache.cocoon.acting.AbstractComplementaryConfigurableAction

getConfiguration, getConfiguration, getConfiguration

Methods inherited from class org.apache.cocoon.acting.AbstractConfigurableAction

configure

Methods inherited from class org.apache.avalon.framework.logger.AbstractLoggable

getLogger, setLogger, setupLogger, setupLogger, setupLogger

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.avalon.framework.configuration.Configurable

configure

Constructor Detail

DatabaseDeleteAction

public DatabaseDeleteAction()

Method Detail

act

public final java.util.Map act(Redirector redirector,
                               SourceResolver resolver,
                               java.util.Map objectModel,
                               java.lang.String source,
                               org.apache.avalon.framework.parameters.Parameters param)
                        throws java.lang.Exception

Delete a record from the database. This action assumes that the file referenced by the "descriptor" parameter conforms to the AbstractDatabaseAction specifications.

Following copied from interface: org.apache.cocoon.acting.Action

Parameters:

resolver - The SourceResolver in charge

objectModel - The Map with object of the calling environment which can be used to select values this controller may need (ie Request, Response).

source - A source String to the Action

parameters - The Parameters for this invocation

Returns:

Map The returned Map object with sitemap substitution values which can be used in subsequent elements attributes like src= using a xpath like expression: src="mydir/{myval}/foo" If the return value is null the processing inside the element of the sitemap will be skipped.

Throws:

java.lang.Exception - Indicates something is totally wrong