org.tentackle.persist

Class AbstractDbOperation<P extends AbstractDbOperation<P>>

java.lang.Object

org.tentackle.persist.AbstractDbOperation<P>

Type Parameters:

P - the operation class type

All Implemented Interfaces:

Serializable, Cloneable, SessionDependable, SessionProvider

Direct Known Subclasses:

AbstractPersistentOperation

public abstract class AbstractDbOperation<P extends AbstractDbOperation<P>>
extends Object
implements SessionDependable, Cloneable, Serializable

A AbstractDbOperation provides methods that are not part of AbstractDbObjects and is associated to a Db-session. Complex transactions are usually AbstractDbOperations. AbstractDbOperations are remote capabable.

Author:

harald

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
AbstractDbOperation() Creates a database object not associated to a logical Db-connection.
AbstractDbOperation(Db session) Creates a database object.

Method Summary

Modifier and Type	Method and Description
P	clone() Clones the operation object.
DbOperationClassVariables<P>	getClassVariables() Gets the some attributes and variables common to all objects of the same class.
org.tentackle.persist.rmi.AbstractDbOperationRemoteDelegate<P>	getRemoteDelegate() Gets the delegate for remote connections. Each class has its own delegate.
Db	getSession() Get the logical db connection for this object.
SessionHolder	getSessionHolder() Gets the session holder.
boolean	isSessionImmutable() Returns whether the db is immutable.
void	setSession(Session session) Sets the logical db connection for this object.
void	setSessionHolder(SessionHolder sessionHolder) Sets the session holder for this object.
void	setSessionImmutable(boolean sessionImmutable) Sets the db to immutable.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractDbOperation

public AbstractDbOperation(Db session)

Creates a database object.

Parameters:

session - the logical Db-connection

AbstractDbOperation

public AbstractDbOperation()

Creates a database object not associated to a logical Db-connection. The connection must be set via setSession(org.tentackle.pdo.Session) in order to use it.

Method Detail

clone

public P clone()

Clones the operation object.

Overrides:

clone in class Object

Returns:

a clone of this object

getClassVariables

public DbOperationClassVariables<P> getClassVariables()

Gets the some attributes and variables common to all objects of the same class. Class variables for classes derived from AbstractDbOperation are kept in an instance of DbOperationClassVariables.

Returns:

the class variables

setSessionHolder

public void setSessionHolder(SessionHolder sessionHolder)

Sets the session holder for this object.

If a holder is set, getSession() will return the session from the holder.

Parameters:

sessionHolder - the session holder

getSessionHolder

public SessionHolder getSessionHolder()

Gets the session holder.

Returns:

the holder, null if none

setSessionImmutable

public void setSessionImmutable(boolean sessionImmutable)

Sets the db to immutable.

Specified by:

setSessionImmutable in interface SessionDependable

Parameters:

sessionImmutable - true if db cannot be changed anymore

isSessionImmutable

public boolean isSessionImmutable()

Returns whether the db is immutable.

Specified by:

isSessionImmutable in interface SessionDependable

Returns:

true if immutable

setSession

public void setSession(Session session)

Sets the logical db connection for this object.

Specified by:

setSession in interface SessionDependable

Parameters:

session - the session

getSession

public Db getSession()

Get the logical db connection for this object.

Specified by:

getSession in interface SessionProvider

Returns:

the db connection

getRemoteDelegate

public org.tentackle.persist.rmi.AbstractDbOperationRemoteDelegate<P> getRemoteDelegate()

Gets the delegate for remote connections.
Each class has its own delegate.

Returns:

the delegate for this object