gudusoft.gsqlparser.sqlcmds

Class TSqlCmdsAdapter

Object

gudusoft.gsqlparser.sqlcmds.TSqlCmdsAdapter

All Implemented Interfaces:

ISqlCmds

public class TSqlCmdsAdapter
extends Object
implements ISqlCmds

Adapter class that wraps the monolithic TSqlCmds for gradual migration. This allows us to migrate vendors one at a time while maintaining compatibility.

Since:

3.1.0.9

Constructor Summary

Constructors

Constructor and Description
TSqlCmdsAdapter(EDbVendor vendor)

Method Summary

Modifier and Type	Method and Description
ESqlStatementType	findSybaseCmdInternal(TSourceToken token) Internal helper for Sybase to find command type.
TSqlCmdList	getSqlCmdList() Gets the command list for this vendor (for compatibility and debugging).
ESqlStatementType	getStatementTypeForToken(TSourceToken token) Finds SQL command type for yacc parser integration.
EDbVendor	getVendor() Gets the vendor this command resolver handles.
TCustomSqlStatement	issql(TSourceToken token, EFindSqlStateType state, TCustomSqlStatement currentStatement) Identifies the SQL statement type from a token stream.

Methods inherited from class Object

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

Constructor Detail

TSqlCmdsAdapter

public TSqlCmdsAdapter(EDbVendor vendor)

Method Detail

issql

public TCustomSqlStatement issql(TSourceToken token,
                                 EFindSqlStateType state,
                                 TCustomSqlStatement currentStatement)

Description copied from interface: ISqlCmds

Identifies the SQL statement type from a token stream. This method is called repeatedly during parsing to identify statement boundaries and types in complex SQL scripts.

Specified by:

issql in interface ISqlCmds

Parameters:

token - Current token being analyzed

state - Current parsing state (start, in body, or in exception)

currentStatement - Current statement being built (may be modified)

Returns:

The identified or modified SQL statement

getStatementTypeForToken

public ESqlStatementType getStatementTypeForToken(TSourceToken token)

Description copied from interface: ISqlCmds

Finds SQL command type for yacc parser integration. Used by vendor-specific yacc parsers to identify statement types.

Specified by:

getStatementTypeForToken in interface ISqlCmds

Parameters:

token - Token to analyze

Returns:

SQL statement type, or sstunknown if not recognized

getVendor

public EDbVendor getVendor()

Description copied from interface: ISqlCmds

Gets the vendor this command resolver handles.

Specified by:

getVendor in interface ISqlCmds

Returns:

Database vendor

getSqlCmdList

public TSqlCmdList getSqlCmdList()

Description copied from interface: ISqlCmds

Gets the command list for this vendor (for compatibility and debugging).

Specified by:

getSqlCmdList in interface ISqlCmds

Returns:

Command list containing all recognized commands

findSybaseCmdInternal

public ESqlStatementType findSybaseCmdInternal(TSourceToken token)

Internal helper for Sybase to find command type. Called by TSqlCmdsSybase.findCmdUsedByYacc() until Sybase is fully migrated.