| Name | Description | Type | Package | Framework |
| AbstractAggregatedValidity | The base class for the aggregation implementationsVersion:CVS $Revision: 1. | Class | org.apache.excalibur.source.impl.validity | Apache Avalon |
| AggregatedValidity | A validation object using a List. | Class | org.apache.excalibur.source.impl.validity | Apache Avalon |
| DeferredAggregatedValidity | A validation object using a List. | Class | org.apache.excalibur.source.impl.validity | Apache Avalon |
| DeferredValidity | This object delivers a validity object if required. | Interface | org.apache.excalibur.source.impl.validity | Apache Avalon |
| ExpiresValidity | A validation object that holds an expiration date. | Class | org.apache.excalibur.source.impl.validity | Apache Avalon |
| FileTimeStampValidity | A validation object for time-stamps. | Class | org.apache.excalibur.source.impl.validity | Apache Avalon |
| NOPValidity | A validation object which is always valid. | Class | org.apache.excalibur.source.impl.validity | Apache Avalon |
| TimeStampValidity | A validation object for time-stamps. | Class | org.apache.excalibur.source.impl.validity | Apache Avalon |