Package net.sourceforge.pmd.document

Class DocumentFile

java.lang.Object

net.sourceforge.pmd.document.DocumentFile

All Implemented Interfaces:

Closeable, AutoCloseable, Document

public class DocumentFile
extends Object
implements Document, Closeable

Implementation that handles a Document as a file in the filesystem and receives operations in a sorted manner (i.e. the regions are sorted). This improves the efficiency of reading the file by only scanning it once while operations are applied, until an instance of this document is closed.

Constructor Summary

Constructors

Constructor	Description
DocumentFile(File file, Charset charset)

Method Summary

Modifier and Type	Method	Description
void	close()
void	delete(RegionByLine regionByOffset)	Delete a region in the document, removing all text which contains it.
void	insert(int beginLine, int beginColumn, String textToInsert)	Insert a text at a line at the position/column specified.
void	replace(RegionByLine regionByLine, String textToReplace)	Replace a specific region in the document which contains text by another text, which not necessarily is the same length as the region's one.

Methods inherited from class java.lang.Object

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

Constructor Detail

DocumentFile

public DocumentFile(File file,
                    Charset charset)
             throws IOException

Throws:

IOException

Method Detail

insert

public void insert(int beginLine,
                   int beginColumn,
                   String textToInsert)

Description copied from interface: Document

Insert a text at a line at the position/column specified. If there is any text to the right of the insertion, that text is shifted by the length of the text to insert, which means that it is not replaced.

Specified by:

insert in interface Document

Parameters:

beginLine - the line in which to insert the text

beginColumn - the position in the line in which to insert the text

textToInsert - the text to be added

replace

public void replace(RegionByLine regionByLine,
                    String textToReplace)

Description copied from interface: Document

Replace a specific region in the document which contains text by another text, which not necessarily is the same length as the region's one.

Specified by:

replace in interface Document

Parameters:

regionByLine - the region in which a text will be inserted to replace the current document's contents

textToReplace - the text to insert

delete

public void delete(RegionByLine regionByOffset)

Description copied from interface: Document

Delete a region in the document, removing all text which contains it. If there is any text to the right of this region, it will be shifted to the left by the length of the region to delete.

Specified by:

delete in interface Document

Parameters:

regionByOffset - the region in which to erase all the text

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException