de.must.dataobj

Class ChangeLogStd

java.lang.Object

de.must.dataobj.ChangeLogStd

public abstract class ChangeLogStd
extends java.lang.Object

Change log standard stuff.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	DELETE_ID
static java.lang.String	INSERT_ID
static java.lang.String	UPDATE_ID
static char	VALUE_SEPARATOR

Constructor Summary

Constructors

Constructor and Description
ChangeLogStd(java.lang.String loggingFilePath) Creates a new change log.

Method Summary

Modifier and Type	Method and Description
protected void	finalize()
protected java.lang.String	getColChangePart(java.lang.String colName, java.lang.String oldColValue, java.lang.String newColValue)
void	log(DataObject dataObject) Logs current changes of a data object.
void	logDeletion(DataObject dataObject) Logs current deletion of a data object.
void	logDeletion(java.lang.String tableName, java.lang.String sql) Logs current deletion of a data object.

Methods inherited from class java.lang.Object

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

Field Detail

INSERT_ID

public static final java.lang.String INSERT_ID

See Also:

Constant Field Values

UPDATE_ID

public static final java.lang.String UPDATE_ID

See Also:

Constant Field Values

DELETE_ID

public static final java.lang.String DELETE_ID

See Also:

Constant Field Values

VALUE_SEPARATOR

public static final char VALUE_SEPARATOR

See Also:

Constant Field Values

Constructor Detail

ChangeLogStd

public ChangeLogStd(java.lang.String loggingFilePath)

Creates a new change log. Some platforms, in particular, allow a file to be opened for writing by only one at a time.

Method Detail

log

public void log(DataObject dataObject)

Logs current changes of a data object.

Parameters:

dataObject - the data object, whose changes are to be logged

logDeletion

public void logDeletion(DataObject dataObject)

Logs current deletion of a data object.

Parameters:

dataObject - the data object, whose deletions are to be logged

logDeletion

public void logDeletion(java.lang.String tableName,
                        java.lang.String sql)

Logs current deletion of a data object.

Parameters:

tableName - the name of the table

sql - the SQL used for deletion

getColChangePart

protected java.lang.String getColChangePart(java.lang.String colName,
                                            java.lang.String oldColValue,
                                            java.lang.String newColValue)

finalize

protected void finalize()
                 throws java.lang.Throwable

Overrides:

finalize in class java.lang.Object

Throws:

java.lang.Throwable