org.apache.struts.tiles
クラス TilesRequestProcessor

java.lang.Object
  org.apache.struts.action.RequestProcessor
      org.apache.struts.tiles.TilesRequestProcessor

public class TilesRequestProcessor

extends RequestProcessor

RequestProcessor contains the processing logic that the Struts controller servlet performs as it receives each servlet request from the container.

This processor subclasses the Struts RequestProcessor in order to intercept calls to forward or include. When such calls are done, the Tiles processor checks if the specified URI is a definition name. If true, the definition is retrieved and included. If false, the original URI is included or a forward is performed.

Actually, catching is done by overloading the following methods:

• processForwardConfig(HttpServletRequest,HttpServletResponse,ForwardConfig)
• internalModuleRelativeForward(String, HttpServletRequest , HttpServletResponse)
• internalModuleRelativeInclude(String, HttpServletRequest , HttpServletResponse)

導入されたバージョン:

Struts 1.1

フィールドの概要

protected DefinitionsFactory	definitionsFactory Definitions factory.
protected static org.apache.commons.logging.Log	log Commons Logging instance.

クラス org.apache.struts.action.RequestProcessor から継承したフィールド

actions, INCLUDE_PATH_INFO, INCLUDE_SERVLET_PATH, moduleConfig, servlet

コンストラクタの概要

TilesRequestProcessor()

メソッドの概要

protected void	doForward(java.lang.String uri, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Do a forward using request dispatcher.
DefinitionsFactory	getDefinitionsFactory() Get associated definition factory.
void	init(ActionServlet servlet, ModuleConfig moduleConfig) Initialize this request processor instance.
protected void	initDefinitionsMapping() Read component instance mapping configuration file.
protected void	internalModuleRelativeForward(java.lang.String uri, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Catch the call to a module relative forward.
protected void	internalModuleRelativeInclude(java.lang.String uri, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Do a module relative include to specified uri using request dispatcher.
protected void	processForwardConfig(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, ForwardConfig forward) Overloaded method from Struts' RequestProcessor.
protected boolean	processTilesDefinition(java.lang.String definitionName, boolean contextRelative, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Process a Tile definition name.

クラス org.apache.struts.action.RequestProcessor から継承したメソッド

destroy, doInclude, getInternal, getServletContext, log, log, process, processActionCreate, processActionForm, processActionPerform, processCachedMessages, processContent, processException, processForward, processInclude, processLocale, processMapping, processMultipart, processNoCache, processPath, processPopulate, processPreprocess, processRoles, processValidate

クラス java.lang.Object から継承したメソッド

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

フィールドの詳細

definitionsFactory

protected DefinitionsFactory definitionsFactory

Definitions factory.

log

protected static org.apache.commons.logging.Log log

Commons Logging instance.

コンストラクタの詳細

TilesRequestProcessor

public TilesRequestProcessor()

メソッドの詳細

init

public void init(ActionServlet servlet,
                 ModuleConfig moduleConfig)
          throws javax.servlet.ServletException

Initialize this request processor instance.

オーバーライド:

クラス RequestProcessor 内の init

パラメータ:

servlet - The ActionServlet we are associated with.

moduleConfig - The ModuleConfig we are associated with.

例外:

javax.servlet.ServletException - If an error occurs during initialization.

initDefinitionsMapping

protected void initDefinitionsMapping()
                               throws javax.servlet.ServletException

Read component instance mapping configuration file. This is where we read files properties.

例外:

javax.servlet.ServletException

processTilesDefinition

protected boolean processTilesDefinition(java.lang.String definitionName,
                                         boolean contextRelative,
                                         javax.servlet.http.HttpServletRequest request,
                                         javax.servlet.http.HttpServletResponse response)
                                  throws java.io.IOException,
                                         javax.servlet.ServletException

Process a Tile definition name. This method tries to process the parameter definitionName as a definition name. It returns true if a definition has been processed, or false otherwise. Parameter contextRelative is not used in this implementation.

パラメータ:

definitionName - Definition name to insert.

contextRelative - Is the definition marked contextRelative ?

request - Current page request.

response - Current page response.

戻り値:

true if the method has processed uri as a definition name, false otherwise.

例外:

java.io.IOException

javax.servlet.ServletException

doForward

protected void doForward(java.lang.String uri,
                         javax.servlet.http.HttpServletRequest request,
                         javax.servlet.http.HttpServletResponse response)
                  throws java.io.IOException,
                         javax.servlet.ServletException

Do a forward using request dispatcher. Uri is a valid uri. If response has already been commited, do an include instead.

オーバーライド:

クラス RequestProcessor 内の doForward

パラメータ:

uri - Uri or Definition name to forward.

request - Current page request.

response - Current page response.

例外:

java.io.IOException

javax.servlet.ServletException

processForwardConfig

protected void processForwardConfig(javax.servlet.http.HttpServletRequest request,
                                    javax.servlet.http.HttpServletResponse response,
                                    ForwardConfig forward)
                             throws java.io.IOException,
                                    javax.servlet.ServletException

Overloaded method from Struts' RequestProcessor. Forward or redirect to the specified destination by the specified mechanism. This method catches the Struts' actionForward call. It checks if the actionForward is done on a Tiles definition name. If true, process the definition and insert it. If false, call the original parent's method.

オーバーライド:

クラス RequestProcessor 内の processForwardConfig

パラメータ:

request - The servlet request we are processing.

response - The servlet response we are creating.

forward - The ActionForward controlling where we go next.

例外:

java.io.IOException - if an input/output error occurs.

javax.servlet.ServletException - if a servlet exception occurs.

internalModuleRelativeForward

protected void internalModuleRelativeForward(java.lang.String uri,
                                             javax.servlet.http.HttpServletRequest request,
                                             javax.servlet.http.HttpServletResponse response)
                                      throws java.io.IOException,
                                             javax.servlet.ServletException

Catch the call to a module relative forward. If the specified uri is a tiles definition name, insert it. Otherwise, parent processing is called. Do a module relative forward to specified uri using request dispatcher. Uri is relative to the current module. The real uri is computed by prefixing the module name. This method is used internally and is not part of the public API. It is advised to not use it in subclasses.

オーバーライド:

クラス RequestProcessor 内の internalModuleRelativeForward

パラメータ:

uri - Module-relative URI to forward to.

request - Current page request.

response - Current page response.

例外:

java.io.IOException

javax.servlet.ServletException

導入されたバージョン:

Struts 1.1

internalModuleRelativeInclude

protected void internalModuleRelativeInclude(java.lang.String uri,
                                             javax.servlet.http.HttpServletRequest request,
                                             javax.servlet.http.HttpServletResponse response)
                                      throws java.io.IOException,
                                             javax.servlet.ServletException

Do a module relative include to specified uri using request dispatcher. Uri is relative to the current module. The real uri is computed by prefixing the module name. This method is used internally and is not part of the public API. It is advised to not use it in subclasses.

オーバーライド:

クラス RequestProcessor 内の internalModuleRelativeInclude

パラメータ:

uri - Module-relative URI to forward to.

request - Current page request.

response - Current page response.

例外:

java.io.IOException

javax.servlet.ServletException

導入されたバージョン:

Struts 1.1

getDefinitionsFactory

public DefinitionsFactory getDefinitionsFactory()

Get associated definition factory.