com.aspc.job.internal

Class DBJobStatisticSearchPlan

java.lang.Object

com.aspc.DBObj.Internal.SearchPlan

com.aspc.DBObj.Internal.DBObjectSearchPlan

com.aspc.DBObj.Internal.impl.DBObjectSearchPlanV8

com.aspc.job.internal.DBJobStatisticSearchPlan

public class DBJobStatisticSearchPlan
extends DBObjectSearchPlanV8

Search plan optimize the query for DBjob class that will detect when search is made on derived field "displayName"
THREAD MODE: SINGLE-THREADED

Since:

21 Sept 2006

Author:

Varun Mishra

Field Summary

Fields inherited from class com.aspc.DBObj.Internal.DBObjectSearchPlan

MAX_JOINS, RESOLUTION_ARCHIVE_CACHE, RESOLUTION_DB_SEARCH, RESOLUTION_FIELD_CACHE, RESOLUTION_FIELD_CACHE_IN, RESOLUTION_FULL_SEARCH, RESOLUTION_LINKAGE_CACHE, RESOLUTION_LOAD_CACHE_IN, RESOLUTION_REVERSED, RESOLUTION_SPLIT_SEARCH

Fields inherited from class com.aspc.DBObj.Internal.SearchPlan

ALWAYS_LOAD_FIELD_CACHE_LIMIT, DEFAULT_TIMEOUT, maxFullListInsteadOfAffirmativeRestriction, maxFullRecordScan, query, RESOLUTION_KNOWN_TO_FAIL, RESOLUTION_UNKOWN

Constructor Summary

Constructors

Constructor and Description
DBJobStatisticSearchPlan(DBQuery query) Creates a new instance of DBJobSearchPlan

Method Summary

Modifier and Type	Method and Description
PossibleRowsHolder	tryPlanCache() Optimize the query when needed

Methods inherited from class com.aspc.DBObj.Internal.impl.DBObjectSearchPlanV8

addSqlUsed, addTranslateMap, archiveSearch, createLayerPlan, doLayerSearch, doReverseSearch, getMatchEstimatePerRow, isUsingDefaultSearchPlan, listSqlUsed, makeLayerPlan, tryKeyWord, tryReverseSearch, trySplitOR, trySplitSearch, useClauseInsteadOfFullScan, useFullSearch, useLinkageCache

Methods inherited from class com.aspc.DBObj.Internal.SearchPlan

addClauseUsed, checkThirdPhase, checkTimeout, cleanCriteria, getBottomLayer, getCriteria, getDataBase, getEstimatedDatabaseRows, getEstimatedMatchRows, getEstimatedMatchRows, getFirstClausedUsed, getMaxFullListInsteadOfAffirmativeRestriction, getMaxFullRecordScan, getMaximumRequiredRows, getQuery, getResolution, getSecondClausedUsed, getStartTime, getThirdClausedUsed, getTopLayer, isLayerExcluded, setForcePhaseThree, setMasterPlan, setMaxFullListInsteadOfAffirmativeRestriction, setMaxFullRecordScan, setMaximumRequiredRows, setResolution, useCache, willSearchFail

Methods inherited from class java.lang.Object

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

Constructor Detail

DBJobStatisticSearchPlan

public DBJobStatisticSearchPlan(DBQuery query)

Creates a new instance of DBJobSearchPlan

Parameters:

query - SQl

Method Detail

tryPlanCache

public PossibleRowsHolder tryPlanCache()
                                throws java.lang.Exception

Optimize the query when needed

Overrides:

tryPlanCache in class DBObjectSearchPlanV8

Returns:

The possible rows from the plan's special cache.

Throws:

java.lang.Exception - A serious problem