# New EclipseLink Mapping File dialog

Specify the location and properties of the EclipseLink mapping file (`eclipselink-orm.xml`).

Property | Description
--- | ---
Project | Select the project in which to add the mapping file.
Source folder | Click Browse and select the source file in which to add the mapping file. The default is `../``<PROJECT>``/src`.
File path | Enter the filename and path of the mapping file. The default is `META-INF/eclipselink-orm.xml`.
Default access | Select whether the entity's access to instance variables is field-based or property-based, as defined in the JPA specification.
Add to persistence unit | Specify if this mapping file should be added to the persistence unit (`persistence.xml`).
Persistence Unit | Select the persistence unit in which to add the mapping file.

Related reference

- Mapping File Location