Interface RandomAccessDictionaryFile

All Superinterfaces:

DictionaryFile

All Known Implementing Classes:

AbstractPrincetonRandomAccessDictionaryFile, PrincetonChannelDictionaryFile, PrincetonRandomAccessDictionaryFile

public interface RandomAccessDictionaryFile
extends DictionaryFile

DictionaryFile that reads lines from a random-access text file.

Field Summary

Fields inherited from interface DictionaryFile

COMMENT_HEADER

Method Summary

Modifier and Type	Method	Description
long	getFilePointer()	Get the current position of the file pointer.
long	getNextLineOffset()	Get the byte offset of the next line (after the position of the file pointer)
boolean	isPreviousLineOffset(long offset)	Return true if offset is the previous offset.
long	length()	Get the length, in bytes, of the file
int	read()	Read a byte from the file
String	readLine()	Read a line from the file
void	seek(long pos)	Go to postion pos in the file.
void	setNextLineOffset(long previousOffset, long nextOffset)	Move the file pointer so that its next line offset is nextOffset

Methods inherited from interface DictionaryFile

close, getFile, getFileType, getPOS, isOpen, newInstance, open

Method Details

read

int read()
  throws IOException

Read a byte from the file

Throws:

IOException

readLine

String readLine()
         throws IOException

Read a line from the file

Throws:

IOException

seek

void seek(long pos)
   throws IOException

Go to postion pos in the file.

Throws:

IOException

getFilePointer

long getFilePointer()
             throws IOException

Get the current position of the file pointer.

Throws:

IOException

length

long length()
     throws IOException

Get the length, in bytes, of the file

Throws:

IOException

setNextLineOffset

void setNextLineOffset(long previousOffset,
 long nextOffset)

Move the file pointer so that its next line offset is nextOffset

isPreviousLineOffset

boolean isPreviousLineOffset(long offset)

Return true if offset is the previous offset.

getNextLineOffset

long getNextLineOffset()

Get the byte offset of the next line (after the position of the file pointer)