= Term: MeshObject =

An atomic unit of managed information in !InfoGrid, such as a business object. A MeshObject may be blessed by one or more [wiki:EntityType EntityTypes], carry [wiki:Property Properties], and participate in [wiki:Relationship Relationships] with other [wiki:MeshObject MeshObjects]. A MeshObject is identified by a unique MeshObjectIdentifier.

All [wiki:MeshObject MeshObjects] always live in and are managed by a MeshBase. Some implementations of MeshBase swap out and garbage-collect any currently unused [wiki:MeshObject MeshObjects] and transparently recreate them from external storage when accessed by an InfoGrid application in order to support large numbers of [wiki:MeshObject MeshObjects] in the same MeshBase.

A MeshObject automatically raises a number of events using the standard !JavaBeans API patterns:
 * events indicating that one of the MeshObject's [wiki:Property Properties] changed its value
 * events indicating that the MeshObject was [wiki:Blessing blessed] or [wiki:Unblessing unblessed]
 * events indicating that the MeshObject has [wiki:Relating gained] a new relationship to a new neighbor MeshObject or [wiki:Unrelating lost] one
 * events indicating that a [wiki:Relationship] in which the MeshObject participates was [wiki:Blessing blessed] or [wiki:Unblessing unblessed]
 * events indicating that the MeshObject was deleted.

Any aspect of a MeshObject can only be modified within a [wiki:Transaction] initiated by its parent MeshBase.

See also:
 * [wiki:Blessing]
 * [wiki:Relating]
 * MeshBase
 * MeshObjectIdentifier
 * Transaction
 * [wiki:Unblessing]
 * [wiki:Unrelating].