| Attribute name | Example | Default |
| validity-timeout | 15000 | No default |
| Tag name | File | |
| orion-ejb-jar/enterprise-beans/entity-deployment | orion-ejb.jar.xml | |
The maximum amount of time (in millis) that an entity is valid in the cache (before being reloaded). Useful for loosely coupled environments where rare updates from legacy systems occur. This attribute is only valid when exclusive-write-access="true" (the default).