Java Doc for MultipartRequestHandler.java in  » Web-Framework » struts-1.3.8 » org » apache » struts » upload » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Framework » struts 1.3.8 » org.apache.struts.upload 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.apache.struts.upload.MultipartRequestHandler

All known Subclasses:   org.apache.struts.upload.CommonsMultipartRequestHandler,  org.apache.struts.mock.MockMultipartRequestHandler,
MultipartRequestHandler
public interface MultipartRequestHandler (Code)

MultipartRequestHandler provides an standard interface for struts to deal with file uploads from forms with enctypes of "multipart/form-data". Providers must provide a no-argument constructor for initialization.



Field Summary
final public static  StringATTRIBUTE_MAX_LENGTH_EXCEEDED
    

This is the ServletRequest attribute that should be set when a multipart request is being read and the maximum length is exceeded.



Method Summary
public  voidfinish()
    

This method is called on when a successful form post has been made. Some implementations will use this to destroy temporary files or write to a database or something of that nature.

public  HashtablegetAllElements()
    

This method returns all elements of a multipart request.

public  HashtablegetFileElements()
    

This method is called on to retrieve all the FormFile input elements of the request.

public  ActionMappinggetMapping()
    
public  ActionServletgetServlet()
    
public  HashtablegetTextElements()
    

This method is called on to retrieve all the text input elements of the request.

public  voidhandleRequest(HttpServletRequest request)
    

After constructed, this is the first method called on by ActionServlet.

public  voidrollback()
    

This method is called on when there's some sort of problem and the form post needs to be rolled back.

public  voidsetMapping(ActionMapping mapping)
    

Convienience method to set a reference to a working ActionMapping instance.

public  voidsetServlet(ActionServlet servlet)
    

Convienience method to set a reference to a working ActionServlet instance.


Field Detail
ATTRIBUTE_MAX_LENGTH_EXCEEDED
final public static String ATTRIBUTE_MAX_LENGTH_EXCEEDED(Code)

This is the ServletRequest attribute that should be set when a multipart request is being read and the maximum length is exceeded. The value is a Boolean. If the maximum length isn't exceeded, this attribute shouldn't be put in the ServletRequest. It's the job of the implementation to put this attribute in the request if the maximum length is exceeded; in the handleRequest(HttpServletRequest) method.






Method Detail
finish
public void finish()(Code)

This method is called on when a successful form post has been made. Some implementations will use this to destroy temporary files or write to a database or something of that nature.




getAllElements
public Hashtable getAllElements()(Code)

This method returns all elements of a multipart request.

A Hashtable where the keys are input names and values areeither String arrays or FormFiles



getFileElements
public Hashtable getFileElements()(Code)

This method is called on to retrieve all the FormFile input elements of the request.

A Hashtable where the keys are the input names of the files andthe values are FormFile objects
See Also:   FormFile



getMapping
public ActionMapping getMapping()(Code)

Get the ActionMapping instance for this request




getServlet
public ActionServlet getServlet()(Code)

Get the ActionServlet instance




getTextElements
public Hashtable getTextElements()(Code)

This method is called on to retrieve all the text input elements of the request.

A Hashtable where the keys and values are the names and valuesof the request input parameters



handleRequest
public void handleRequest(HttpServletRequest request) throws ServletException(Code)

After constructed, this is the first method called on by ActionServlet. Use this method for all your data-parsing of the ServletInputStream in the request


throws:
  ServletException - thrown if something goes wrong



rollback
public void rollback()(Code)

This method is called on when there's some sort of problem and the form post needs to be rolled back. Providers should remove any FormFiles used to hold information by setting them to null and also physically delete them if the implementation calls for writing directly to disk. NOTE: Currently implemented but not automatically supported, ActionForm implementors must call rollback() manually for rolling back file uploads.




setMapping
public void setMapping(ActionMapping mapping)(Code)

Convienience method to set a reference to a working ActionMapping instance.




setServlet
public void setServlet(ActionServlet servlet)(Code)

Convienience method to set a reference to a working ActionServlet instance.




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