| name | type | required | default value | description | |
| model | object |  | |||
| createExpression | java.lang.String | Ognl expression to invoke on the model to create a new association instance | |||
| association | object | | |||
| descriptor | ...g.trails.descriptor.ObjectReferenceDescriptor | | |||
| owner | object | | |||
| value | object | | |||