wt.vc.config
Class LatestConfigSpec

java.lang.Object
  wt.vc.config.LatestConfigSpec

All Implemented Interfaces:

Externalizable, Serializable, ConfigSpec

public final class LatestConfigSpec
extends Object
implements ConfigSpec, Externalizable

Returns, in priority order, the latest iteration for a master owned by the current principal, the latest iteration by comparing the iterationIdentifier's series value if not owned by the current principal, or the latest by create Timestamp if the series values are equivalent. Note that only one iteration is returned for any given master.

Supported API: true

Extendable: false

See Also:

Iterated, IterationIdentifier, Series, Serialized Form

Method Summary

QuerySpec	appendSearchCriteria(QuerySpec querySpec) Appends a "latest == true" condition to the QuerySpec.
QueryResult	process(QueryResult results) Returns (by priority) an iteration if the current principal owns it, the latest by IteratedSeriesValue if not, and the latest by creation Timestamp if the series values are equivalent.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

appendSearchCriteria

public QuerySpec appendSearchCriteria(QuerySpec querySpec)
                               throws WTException,
                                      QueryException

Appends a "latest == true" condition to the QuerySpec.

Supported API: true

Specified by:

appendSearchCriteria in interface ConfigSpec

Parameters:

querySpec - A QuerySpec with a target class that is Iterated.

Returns:

QuerySpec

Throws:

WTException

QueryException

See Also:

QuerySpec, SearchCondition

process

public QueryResult process(QueryResult results)
                    throws WTException

Returns (by priority) an iteration if the current principal owns it, the latest by IteratedSeriesValue if not, and the latest by creation Timestamp if the series values are equivalent. Note that only one iteration is returned per master.

Supported API: true

Specified by:

process in interface ConfigSpec

Parameters:

results - QueryResult of iterations to filter. Assumed to be the result of a query that included the additional search conditions applied by appendSearchCriteria.

Returns:

QueryResult

Throws:

WTException

See Also:

Iterated, wt.vc.