Class AggregatedValidity

  extended byorg.apache.excalibur.source.impl.validity.AbstractAggregatedValidity
      extended byorg.apache.excalibur.source.impl.validity.AggregatedValidity
All Implemented Interfaces:, SourceValidity

public final class AggregatedValidity
extends AbstractAggregatedValidity
implements SourceValidity

A validation object using a List.

CVS $Revision: 1.4 $ $Date: 2004/02/28 11:47:17 $
Avalon Development Team
See Also:
Serialized Form

Field Summary
Fields inherited from interface org.apache.excalibur.source.SourceValidity
Constructor Summary
Method Summary
 int isValid()
          Check if the component is still valid.
 int isValid(SourceValidity validity)
          Check if the component is still valid.
Methods inherited from class org.apache.excalibur.source.impl.validity.AbstractAggregatedValidity
add, getValidities, toString
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail


public AggregatedValidity()
Method Detail


public int isValid()
Check if the component is still valid. If 0 is returned the isValid(SourceValidity) must be called afterwards! If -1 is returned, the component is not valid anymore and if +1 is returnd, the component is valid.

Specified by:
isValid in interface SourceValidity


public int isValid(SourceValidity validity)
Description copied from interface: SourceValidity
Check if the component is still valid. This is only true if the incoming Validity is of the same type and has the "same" values.

The invocation order is that the isValid method of the old Validity object is called with the new one as a parameter.

Specified by:
isValid in interface SourceValidity
-1 is returned, if the validity object is not valid anymore +1 is returned, if the validity object is still valid 0 is returned, if the validity check could not be performed. In this case, the new validity object is not usable. Examples for this are: when the validity objects have different types, or when one validity object for any reason is not able to get the required information.

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