gov.nih.nlm.nls.lvg.Trie

Class PersistentRuleNode

java.lang.Object

gov.nih.nlm.nls.lvg.Trie.PersistentListNode

gov.nih.nlm.nls.lvg.Trie.PersistentRuleNode

public class PersistentRuleNode
extends PersistentListNode

This class creates an object of the rule node for persistent data.

History:

Version:

V-2020

Author:

NLM NLS Development Team

Constructor Summary

Constructors

Constructor and Description
PersistentRuleNode(long address) Create an object of persistent rule node, using an address in a random access file.
PersistentRuleNode(long address, long next) Create an object of persistent rule node, using an address and next address in a random access file.
PersistentRuleNode(java.lang.String ruleStr, long exceptionAddress) Create an object of persistent rule node, using an string representation of a specific rule and the address of a specific exception object.

Method Summary

Modifier and Type	Method and Description
long	GetExceptionAddress() Get the address of the exception for the current rule.
static PersistentListNode	GetNode(java.io.RandomAccessFile raf, long address) Get the current persistent rule node from a specified binary file at a specified address.
java.lang.String	GetRuleString() Get the string representation of the current rule.
static void	PrintList(java.lang.String rulePath, java.lang.String exceptionPath, long address) Print all sub tree (list) for a persistent nule node at a specific address of specific binary files of rules and exceptions.
void	ReadData(java.io.RandomAccessFile raf) Read the string representation data from a specified random access file and assigned this data to the current rule node.
void	WriteData(java.io.RandomAccessFile raf) Write the string representation data of current rule node to a specified random access file.

Methods inherited from class gov.nih.nlm.nls.lvg.Trie.PersistentListNode

GetAddress, GetNext, PrintList, SetAddress, SetNext

Methods inherited from class java.lang.Object

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

Constructor Detail

PersistentRuleNode

public PersistentRuleNode(long address)

Create an object of persistent rule node, using an address in a random access file.

Parameters:

address - address in a random access file.

PersistentRuleNode

public PersistentRuleNode(long address,
                          long next)

Create an object of persistent rule node, using an address and next address in a random access file.

Parameters:

address - address in a random access file.

next - address of current persistent tree node at a tree

PersistentRuleNode

public PersistentRuleNode(java.lang.String ruleStr,
                          long exceptionAddress)

Create an object of persistent rule node, using an string representation of a specific rule and the address of a specific exception object.

Parameters:

ruleStr - rule instring format.

exceptionAddress - the exception adddress of current node.

Method Detail

GetRuleString

public java.lang.String GetRuleString()

Get the string representation of the current rule.

Returns:

the string representation of the current rule

GetExceptionAddress

public long GetExceptionAddress()

Get the address of the exception for the current rule.

Returns:

the address of the exception for the current rule

WriteData

public void WriteData(java.io.RandomAccessFile raf)
               throws java.io.IOException

Write the string representation data of current rule node to a specified random access file.

Overrides:

WriteData in class PersistentListNode

Parameters:

raf - the random access file that data will be written to

Throws:

java.io.IOException - if problems happen when writing data to the random access file.

ReadData

public void ReadData(java.io.RandomAccessFile raf)
              throws java.io.IOException

Read the string representation data from a specified random access file and assigned this data to the current rule node.

Overrides:

ReadData in class PersistentListNode

Parameters:

raf - the random access file that data will be read from

Throws:

java.io.IOException - if problems happen when reading data from the random access file.

GetNode

public static PersistentListNode GetNode(java.io.RandomAccessFile raf,
                                         long address)
                                  throws java.io.IOException

Get the current persistent rule node from a specified binary file at a specified address.

Parameters:

raf - the binary file that the persistent rule node will be retrieved from

address - the address in the binary file that the persistent rule node will be retrieved from

Returns:

the persistent list node of specified address in RAF

Throws:

java.io.IOException - if problems happen when accessing the random access file.

PrintList

public static void PrintList(java.lang.String rulePath,
                             java.lang.String exceptionPath,
                             long address)
                      throws java.io.IOException

Print all sub tree (list) for a persistent nule node at a specific address of specific binary files of rules and exceptions.

Parameters:

rulePath - the path/name of the persistent rules.

exceptionPath - the path/name of the persistent exceptions.

address - the address in the binary file that the persistent rule node will be printed out

Throws:

java.io.IOException - if problems happen when accessing files of rules and exceptions.