Package gudusoft.gsqlparser

Class TSafeParserPool

Object

gudusoft.gsqlparser.TParserPool

gudusoft.gsqlparser.TSafeParserPool

public class TSafeParserPool
extends TParserPool

Thread-safe parser pool that clears parser references from parse trees. This eliminates any potential issues with shared parser references when parse trees are used concurrently after parsing. This pool ensures complete isolation of parse trees from parser instances, making them safe to use in any concurrent scenario.

Nested Class Summary

Nested classes/interfaces inherited from class gudusoft.gsqlparser.TParserPool

TParserPool.ParserFunction<T>, TParserPool.PoolStatistics, TParserPool.TimeoutException

Constructor Summary

Constructors

Constructor	Description
TSafeParserPool()	Creates a safe parser pool with default size
TSafeParserPool(int poolSize)	Creates a safe parser pool with specified size

Method Summary

Modifier and Type	Method	Description
TStatementList	safeParseSQL(EDbVendor vendor, String sqlText)	Safe parsing method that returns statements without parser references.
TSourceTokenList	safeTokenizeSQL(EDbVendor vendor, String sqlText)	Safe tokenization method.
<T> T	withParser(EDbVendor vendor, TParserPool.ParserFunction<T> function)	Executes a function with a borrowed parser and automatically returns it.

Methods inherited from class gudusoft.gsqlparser.TParserPool

borrowParser, getStatistics, prewarm, returnParser, shutdown

Methods inherited from class java.lang.Object

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

Constructor Details

TSafeParserPool

public TSafeParserPool()

Creates a safe parser pool with default size

TSafeParserPool

public TSafeParserPool(int poolSize)

Creates a safe parser pool with specified size

Parameters:

poolSize - Size of the pool for each vendor

Method Details

withParser

public <T> T withParser(EDbVendor vendor,
 TParserPool.ParserFunction<T> function)
                 throws Exception

Executes a function with a borrowed parser and automatically returns it. This version clears parser references from the parse tree before returning.

Overrides:

withParser in class TParserPool

Parameters:

vendor - Database vendor

function - Function to execute with the parser

Returns:

Result of the function

Throws:

Exception

safeParseSQL

public TStatementList safeParseSQL(EDbVendor vendor,
 String sqlText)
                            throws Exception

Safe parsing method that returns statements without parser references.

Parameters:

vendor - Database vendor

sqlText - SQL text to parse

Returns:

Parsed statements with no parser references

Throws:

Exception

safeTokenizeSQL

public TSourceTokenList safeTokenizeSQL(EDbVendor vendor,
 String sqlText)
                                 throws Exception

Safe tokenization method.

Parameters:

vendor - Database vendor

sqlText - SQL text to tokenize

Returns:

Token list

Throws:

Exception