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Java Source Code / Java Documentation » IDE Netbeans » nbi » org.netbeans.installer.infra.utils.comment.handlers 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.netbeans.installer.infra.utils.comment.handlers.FileHandler

All known Subclasses:   org.netbeans.installer.infra.utils.comment.handlers.LineFileHandler,  org.netbeans.installer.infra.utils.comment.handlers.BlockFileHandler,
FileHandler
public interface FileHandler (Code)
The interface that all file handlers, i.e. classes handling comment correction for concrete file types, should implement.

It requires the implementing classes to provide functionality of loading/saving a file, extracting the current initial comment, iserting a new one and updating (replacing) the current.
author:
   Kirill Sorokin





Method Summary
 booleanaccept(File file)
     Checks whether the given ile can be processed by this file handler.
Parameters:
  file - The file for which to run the compatibility check.
 StringgetCorrectComment(String text, int lineLength)
     Constructs the correct initial comment.
Parameters:
  text - The text of the initial comment.
Parameters:
  lineLength - The desired line length for the comment.
 StringgetCurrentComment()
     Extracts the current initial comment from the cached file contents.
 voidinsertComment(String text, int lineLength)
     Inserts the initial comment to the cached file contents.
 voidload(File file)
     Loads the file into file handler's cache.
 voidsave(File file)
     Saves the cached file contents to the given file on disk.
 voidupdateComment(String text, int lineLength)
     Updates the current initial comment in the cached file contents.



Method Detail
accept
boolean accept(File file)(Code)
Checks whether the given ile can be processed by this file handler.
Parameters:
  file - The file for which to run the compatibility check. true if the current file handler is capable of handling the file, false otherwise.



getCorrectComment
String getCorrectComment(String text, int lineLength)(Code)
Constructs the correct initial comment.
Parameters:
  text - The text of the initial comment.
Parameters:
  lineLength - The desired line length for the comment. The correct, formatted, initial comment for this type of file.



getCurrentComment
String getCurrentComment()(Code)
Extracts the current initial comment from the cached file contents. Teh current initial comment or null if the initial comment does not exist.
throws:
  java.lang.IllegalStateException - if the file handler does not have anything loaded.



insertComment
void insertComment(String text, int lineLength)(Code)
Inserts the initial comment to the cached file contents. If an intiial comment already exists in the file it is prepended by the new one.
Parameters:
  text - The text of the new initial comment.
Parameters:
  lineLength - The desired line length for the comment.
throws:
  java.lang.IllegalArgumentException - if the parameters validation fails.
throws:
  java.lang.IllegalStateException - if the file handler does not have anything loaded.



load
void load(File file) throws IOException(Code)
Loads the file into file handler's cache.
Parameters:
  file - The file to load.
throws:
  java.io.IOException - if an I/O error occurs.
throws:
  java.lang.IllegalArgumentException - if the parameter validation fails.



save
void save(File file) throws IOException(Code)
Saves the cached file contents to the given file on disk.
Parameters:
  file - The file to which the cache should be saved.
throws:
  java.io.IOException - if an I/O error occurs.
throws:
  java.lang.IllegalArgumentException - if the parameter validation fails.
throws:
  java.lang.IllegalStateException - if the file contents cache is null.



updateComment
void updateComment(String text, int lineLength)(Code)
Updates the current initial comment in the cached file contents. If there is no initia comment, then this method falls back to FileHandler.insertComment(String,int) .
Parameters:
  text - The text of the new initial comment.
Parameters:
  lineLength - The desired line length for the comment.
throws:
  java.lang.IllegalArgumentException - if the parameters validation fails.
throws:
  java.lang.IllegalStateException - if the file handler does not have anything loaded.



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