org.waarp.common.database.model

Class DbModelAbstract

java.lang.Object

org.waarp.common.database.model.DbModelAbstract

All Implemented Interfaces:

DbModel

Direct Known Subclasses:

DbModelCommonMariadbMySql, DbModelH2, DbModelOracle, DbModelPostgresql

public abstract class DbModelAbstract
extends Object
implements DbModel

This Abstract class regroups common methods for all implementation classes.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DbModelAbstract.DbTypeResolver

Field Summary

Fields

Modifier and Type	Field and Description
protected static DbModelAbstract.DbTypeResolver	dbTypeResolver
static int	MAX_BINARY Max size in Binary mode, store in BASE64 mode (so x2)
static int	MAX_KEY_VARCHAR Max Key size in VARCHAR
static int	MAX_LONGVARCHAR Max size in LONGVARCHAR (except ORACLE = 4000)
static int	MAX_VARCHAR Max VARCHAR size (except ORACLE = 4000)

Constructor Summary

Constructors

Constructor and Description
DbModelAbstract()

Method Summary

Modifier and Type	Method and Description
protected void	closeInternalConnection(DbSession dbSession) Internal use for closing connection while validating it
int	currentNumberOfPooledConnections()
Connection	getDbConnection(String server, String user, String passwd)
DbModelAbstract.DbTypeResolver	getDbTypeResolver()
void	releaseResources() Release any internal resources if needed
void	validConnection(DbSession dbSession) Validate connection
protected void	validConnectionSelect(DbSession dbSession)
protected abstract String	validConnectionString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.waarp.common.database.model.DbModel

createTables, getDbType, limitRequest, needUpgradeDb, nextSequence, resetSequence, upgradeDb

Field Detail

MAX_BINARY

public static final int MAX_BINARY

Max size in Binary mode, store in BASE64 mode (so x2)

See Also:

Constant Field Values

MAX_LONGVARCHAR

public static final int MAX_LONGVARCHAR

Max size in LONGVARCHAR (except ORACLE = 4000)

See Also:

Constant Field Values

MAX_KEY_VARCHAR

public static final int MAX_KEY_VARCHAR

Max Key size in VARCHAR

See Also:

Constant Field Values

MAX_VARCHAR

public static final int MAX_VARCHAR

Max VARCHAR size (except ORACLE = 4000)

See Also:

Constant Field Values

dbTypeResolver

protected static DbModelAbstract.DbTypeResolver dbTypeResolver

Constructor Detail

DbModelAbstract

public DbModelAbstract()

Method Detail

getDbTypeResolver

public DbModelAbstract.DbTypeResolver getDbTypeResolver()

Specified by:

getDbTypeResolver in interface DbModel

Returns:

the current DbTypeResolver

closeInternalConnection

protected final void closeInternalConnection(DbSession dbSession)

Internal use for closing connection while validating it

Parameters:

dbSession -

validConnection

public final void validConnection(DbSession dbSession)
                           throws WaarpDatabaseNoConnectionException

Description copied from interface: DbModel

Validate connection

Specified by:

validConnection in interface DbModel

Throws:

WaarpDatabaseNoConnectionException

validConnectionSelect

protected final void validConnectionSelect(DbSession dbSession)
                                    throws WaarpDatabaseNoConnectionException

Throws:

WaarpDatabaseNoConnectionException

validConnectionString

protected abstract String validConnectionString()

Returns:

the associated String to validate the connection (as "select 1 from dual")

getDbConnection

public Connection getDbConnection(String server,
                                  String user,
                                  String passwd)
                           throws SQLException

Specified by:

getDbConnection in interface DbModel

Returns:

a connection according to the underlying Database Model

Throws:

SQLException

releaseResources

public void releaseResources()

Description copied from interface: DbModel

Release any internal resources if needed

Specified by:

releaseResources in interface DbModel

currentNumberOfPooledConnections

public int currentNumberOfPooledConnections()

Specified by:

currentNumberOfPooledConnections in interface DbModel

Returns:

the number of Pooled Connections if any