ptdb.kernel.bl.search

Class HierarchyFetcher

java.lang.Object

ptdb.kernel.bl.search.AbstractSearcher

ptdb.kernel.bl.search.HierarchyFetcher

All Implemented Interfaces:

AbstractDBSearcher, ResultHandler

public class HierarchyFetcher
extends AbstractSearcher
implements AbstractDBSearcher

Fetch the referencing hierarchy for the models.

This searcher does not perform any search in the database according to the search criteria, but it fetches all the parents models of the results found in the other searchers.

This searcher does not actually perform the search according to any search criteria, but just fetch the reference hierarchy for the passed models. So this searcher does not exist without other searchers. Also, the results get from this searcher does not need to intersect with the results from the other searchers.

Since:

Ptolemy II 10.0

Version:

$Id$

Author:

Alek Wang

Pt.AcceptedRating:

red (wenjiaow)

Pt.ProposedRating:

red (wenjiaow)

Field Summary

Fields inherited from class ptdb.kernel.bl.search.AbstractSearcher

_currentResults, _dbConnection, _errorModels, _isIndependent, _nextResultHandler, _previousResults

Constructor Summary

Constructors

Constructor and Description
HierarchyFetcher() Construct the HierarchyFetcher object.

Method Summary

Modifier and Type	Method and Description
protected boolean	_isSearchCriteriaSet() Checks whether the search criteria has been set in this searcher instance.
protected void	_search() Handle the model results passed to this class.

Methods inherited from class ptdb.kernel.bl.search.AbstractSearcher

_addErrorModel, _isFirstSearcher, _isIndependent, _isIntersectNeeded, _isLastSeacher, _pass, handleIntermediateResults, handleResults, isPassed, isSearchCancelled, noIntersect, passErrorModels, setConnection, setFirstSearcher, setLastSearcher, setNextResultHandler, setPreviousSeacher, wholeSearchDone

Methods inherited from class java.lang.Object

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

Constructor Detail

HierarchyFetcher

public HierarchyFetcher()

Construct the HierarchyFetcher object.

Method Detail

_isSearchCriteriaSet

protected boolean _isSearchCriteriaSet()

Checks whether the search criteria has been set in this searcher instance. This searcher does not need any search criteria, since it just fetch the hierarchy, so the search criteria is always marked set for this searcher.

Specified by:

_isSearchCriteriaSet in class AbstractSearcher

Returns:

true - if the search criteria has been set.
false - if the search criteria has not been set.

_search

protected void _search()
                throws DBExecutionException

Handle the model results passed to this class. Go to the database to fetch all the referencing hierarchy for the passed results.

Specified by:

_search in class AbstractSearcher

Throws:

DBExecutionException - Thrown by the DBConnection when unexpected problem happens during the execution of DB query tasks.