Package org.eclipse.persistence.oxm.annotations

Annotation Type XmlNullPolicy

@Target({FIELD,METHOD,TYPE,PACKAGE}) @Retention(RUNTIME) public @interface XmlNullPolicy
Purpose: Provide a means of using annotations to customise the handling of null values and their xml representation.

This annotation provides the user with a mechanism to customise the way that EclipseLink handles the reading and writing of null values. The following values can be specified:

  • xsiNilRepresentsNull - This indicates that during unmarshal, an element with an xsi:nil="true" attribute specified should be unmarshaled as "null" into the object.
  • emptyNodeRepresentsNull - This indicates that during unmarshal, an empty node "<element/>" should be unmarshalled to as null in the object model.
  • isSetPerformedForAbsentNode - If this is set to true, then for each mapped element that was absent from the document during unmarshal, the property in java will be explicitly set to null.
  • nullRepresentationForXml - Determines how a null value in the object model is written out to XML.
See Also:

  • Element Details

    • xsiNilRepresentsNull

      boolean xsiNilRepresentsNull
      Default:
      false

    • emptyNodeRepresentsNull

      boolean emptyNodeRepresentsNull
      Default:
      false

    • isSetPerformedForAbsentNode

      boolean isSetPerformedForAbsentNode
      Default:
      true

    • nullRepresentationForXml

      XmlMarshalNullRepresentation nullRepresentationForXml
      Default:
      ABSENT_NODE