gov.nih.nlm.nls.lvg.Trie

Class PersistentTrieTree

java.lang.Object

gov.nih.nlm.nls.lvg.Trie.PersistentTrieTree

public final class PersistentTrieTree
extends java.lang.Object

This class establishes the Persistent files (Random Access File) from a flat file. This class is run before the LVG is distributed and consided as a pre-process class. LVG end users may ignore this class.

History:

Version:

V-2026

Author:

NLM NLS Development Team

Constructor Summary

Constructors

Constructor and Description
PersistentTrieTree(java.lang.String triePath, java.lang.String rulePath, java.lang.String exceptionPath) Creates an object of LVG persistent trie tree, using path names of trie, rules, and exception files.

Method Summary

Modifier and Type	Method and Description
void	BuildPersistentTrieTree(boolean isInflection) Establishes a radom access file from a flat file for a persistent trie tree.
void	BuildPersistentTrieTree(java.lang.String inFile) Establishes a radom access file from a flat file for a persistent trie tree.
void	Close() Close the random access file of persistent trie.
static void	main(java.lang.String[] args) A executable program for LVG developers to create radom access files for inflections and derivations from flat files.
void	PrintPersistentTrieTree() Print the detail information of the current persistent trie tree.

Methods inherited from class java.lang.Object

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

Constructor Detail

PersistentTrieTree

public PersistentTrieTree(java.lang.String triePath,
                          java.lang.String rulePath,
                          java.lang.String exceptionPath)

Creates an object of LVG persistent trie tree, using path names of trie, rules, and exception files.

Parameters:

triePath - the path of trie file

rulePath - the path of rules

exceptionPath - the path of exceptions

Method Detail

BuildPersistentTrieTree

public void BuildPersistentTrieTree(java.lang.String inFile)
                             throws java.io.IOException

Establishes a radom access file from a flat file for a persistent trie tree.

Parameters:

inFile - the input rule flat file: inflection or derivation.

Throws:

java.io.IOException - if probelms happens when accessing random access file

BuildPersistentTrieTree

public void BuildPersistentTrieTree(boolean isInflection)
                             throws java.io.IOException

Establishes a radom access file from a flat file for a persistent trie tree.

Parameters:

isInflection - true or false if the persistent trie tree is inflection or derivation.

Throws:

java.io.IOException - if probelms happens when accessing random access file

PrintPersistentTrieTree

public void PrintPersistentTrieTree()
                             throws java.io.IOException

Print the detail information of the current persistent trie tree.

Throws:

java.io.IOException - if probelms happens when accessing random access file

Close

public void Close()
           throws java.io.IOException

Close the random access file of persistent trie.

Throws:

java.io.IOException - if probelms happens when accessing random access file

main

public static void main(java.lang.String[] args)

A executable program for LVG developers to create radom access files for inflections and derivations from flat files. This program is executed before LVG is distributed to generate RAF. The commands for running this program are:

• java PersistentTrieTree -i
  generates inflection rafs: trieI.data, ruleI.data, exceptionI.data
• java PersistentTrieTree -d
  generates derivation rafs: trieD.data, ruleD.data, exceptionD.data

Parameters:

args - arguments