106 words

makeDirty(pc, fieldName) - JDO JDOHelper's static method

Static Method
javax.jdo.JDOHelper
void makeDirty(
  Object pc,
  String fieldName
)

Explicitly mark the parameter instance and field dirty. Normally, PersistenceCapable classes are able to detect changes made to their fields. However, if a reference to an array is given to a method outside the class, and the array is modified, then the persistent instance is not aware of the change. This API allows the application to notify the instance that a change was made to a field.

Transient instances and instances of classes that do not implement PersistenceCapable ignore this method.

Parameters:
pc - the PersistenceCapable instance.
fieldName - the name of the field to be marked dirty.
Since:
JDO 1.0
See Also:
PersistenceCapable.jdoMakeDirty(String fieldName)

This documentation page is derived (with some adjustments) from the JDO 2.2 API
and is available under the terms of the Apache License, v. 2.0.