Package org.smyld.db

Class SMYLDDataBaseHandler

java.lang.Object

org.smyld.SMYLDObject

org.smyld.db.SMYLDDataBaseHandler

All Implemented Interfaces:

DBConstants

Direct Known Subclasses:

DBIOHandler, DBSchemaReader

public class SMYLDDataBaseHandler
extends org.smyld.SMYLDObject
implements DBConstants

This class will handle the whole connection with the data base holding the connection object together with the utility object as static declared and accordingly all the child classes will use the very same connection object and utility.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static int	DB_SEQUENTIAL_NO_WIDTH
static java.lang.String	DB_VAL_NoParentFieldValue	Holds value (in data base) of the parent id in case there is not parent
protected java.sql.Connection	dbConnection	Holds the connection to the data base
protected SMYLDDBUtility	dbUtility	serves for the different data base access methods
protected DBConnection	smyldDBConnection

Fields inherited from interface org.smyld.db.DBConstants

DB_ERR_CONNECTION_RESET, DB_ERR_CONNECTION_RESET_TEXT, DB_ERR_UNIQUE_CONSTRAINT, DB_ERR_UNKNOWN, DB_VENDOR_DB2, DB_VENDOR_DEFAULT, DB_VENDOR_MYSQL, DB_VENDOR_ORACLE, DB_VENDOR_SQL_SERVER, DB_VENDOR_SYBASE

Fields inherited from class org.smyld.SMYLDObject

NEW_LINE, OS_NEW_LINE

Constructor Summary

Constructors

Constructor	Description
SMYLDDataBaseHandler(int driver, DBErrorHandler e, java.lang.String userName, java.lang.String userPassword, java.lang.String host, java.lang.String port, java.lang.String dbname)
SMYLDDataBaseHandler(DBErrorHandler e)	In this constructor, the class will open connection to the data base, and will load the required tables according to method calls
SMYLDDataBaseHandler(DBErrorHandler e, java.lang.String userName, java.lang.String userPassword, java.lang.String host, java.lang.String port, java.lang.String dbname)
SMYLDDataBaseHandler(DBErrorHandler e, DBConnection connection)

Method Summary

Modifier and Type	Method	Description
void	addDBConnectionListener(DBConnectionListener newConnectionListener)
void	addDBConnectionListener(DBConnectionListener newConnectionListener, int priorty)
void	closeConnection()
void	doCommit()
void	doRollBack()
void	executeDoubleParamFunction(java.lang.String function, int param1, int param2)
void	executeDoubleParamFunction(java.lang.String function, java.lang.String param1, java.lang.String param2)
void	executeDoubleParamProcedure(java.lang.String procedure, int param1, int param2)
void	executeMultiParamProcedure(java.lang.String procedureName, java.lang.String[] params)
protected java.sql.ResultSet	executeQuery(java.lang.String sql)
java.sql.Array	executeSingleParamOraArrayFun(java.lang.String function, java.lang.String arrayTypeName, int param1)
void	executeTrippleParamFunction(java.lang.String function, java.lang.String param1, java.lang.String param2, java.lang.String param3)
void	executeTrippleParamProcedure(java.lang.String procedure, java.lang.String param1, int param2, int param3)
DBConnection	getSMYLDConnection()
int	getTableTotalRecordsNumber(java.lang.String tableName)
Utility	getUtility()
protected void	handleDBError(java.lang.Exception ex)
boolean	isConnected()
void	setDBConnection(DBConnection newActiveDBConnection)
void	setSMYLDConnection(DBConnection newActiveConnection)

Methods inherited from class java.lang.Object

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

Methods inherited from class org.smyld.SMYLDObject

debug, getLenName, insertInstanceValue, printInstanceValues, toString

Field Detail

dbConnection

protected java.sql.Connection dbConnection

Holds the connection to the data base

smyldDBConnection

protected DBConnection smyldDBConnection

dbUtility

protected SMYLDDBUtility dbUtility

serves for the different data base access methods

DB_VAL_NoParentFieldValue

public static final java.lang.String DB_VAL_NoParentFieldValue

Holds value (in data base) of the parent id in case there is not parent

See Also:

Constant Field Values

DB_SEQUENTIAL_NO_WIDTH

public static final int DB_SEQUENTIAL_NO_WIDTH

See Also:

Constant Field Values

Constructor Detail

SMYLDDataBaseHandler

public SMYLDDataBaseHandler(DBErrorHandler e)

In this constructor, the class will open connection to the data base, and will load the required tables according to method calls

SMYLDDataBaseHandler

public SMYLDDataBaseHandler(DBErrorHandler e,
                            DBConnection connection)

SMYLDDataBaseHandler

public SMYLDDataBaseHandler(DBErrorHandler e,
                            java.lang.String userName,
                            java.lang.String userPassword,
                            java.lang.String host,
                            java.lang.String port,
                            java.lang.String dbname)

SMYLDDataBaseHandler

public SMYLDDataBaseHandler(int driver,
                            DBErrorHandler e,
                            java.lang.String userName,
                            java.lang.String userPassword,
                            java.lang.String host,
                            java.lang.String port,
                            java.lang.String dbname)

Method Detail

setSMYLDConnection

public void setSMYLDConnection(DBConnection newActiveConnection)

getUtility

public Utility getUtility()

isConnected

public boolean isConnected()

getSMYLDConnection

public DBConnection getSMYLDConnection()

closeConnection

public void closeConnection()
                     throws java.sql.SQLException

Throws:

java.sql.SQLException

doCommit

public void doCommit()

doRollBack

public void doRollBack()

addDBConnectionListener

public void addDBConnectionListener(DBConnectionListener newConnectionListener)

addDBConnectionListener

public void addDBConnectionListener(DBConnectionListener newConnectionListener,
                                    int priorty)

executeDoubleParamFunction

public void executeDoubleParamFunction(java.lang.String function,
                                       java.lang.String param1,
                                       java.lang.String param2)

executeDoubleParamFunction

public void executeDoubleParamFunction(java.lang.String function,
                                       int param1,
                                       int param2)

executeTrippleParamFunction

public void executeTrippleParamFunction(java.lang.String function,
                                        java.lang.String param1,
                                        java.lang.String param2,
                                        java.lang.String param3)

executeDoubleParamProcedure

public void executeDoubleParamProcedure(java.lang.String procedure,
                                        int param1,
                                        int param2)

executeTrippleParamProcedure

public void executeTrippleParamProcedure(java.lang.String procedure,
                                         java.lang.String param1,
                                         int param2,
                                         int param3)

executeSingleParamOraArrayFun

public java.sql.Array executeSingleParamOraArrayFun(java.lang.String function,
                                                    java.lang.String arrayTypeName,
                                                    int param1)

executeMultiParamProcedure

public void executeMultiParamProcedure(java.lang.String procedureName,
                                       java.lang.String[] params)

executeQuery

protected java.sql.ResultSet executeQuery(java.lang.String sql)

setDBConnection

public void setDBConnection(DBConnection newActiveDBConnection)

handleDBError

protected void handleDBError(java.lang.Exception ex)

getTableTotalRecordsNumber

public int getTableTotalRecordsNumber(java.lang.String tableName)