org.hibernate.loader.criteria

Class CriteriaLoader

java.lang.Object

org.hibernate.loader.Loader

org.hibernate.loader.BasicLoader

org.hibernate.loader.OuterJoinLoader

org.hibernate.loader.criteria.CriteriaLoader

public class CriteriaLoader
extends OuterJoinLoader

A Loader for Criteria queries. Note that criteria queries are more like multi-object load()s than like HQL queries.

Author:

Gavin King

Nested Class Summary

Nested classes/interfaces inherited from class org.hibernate.loader.Loader

Loader.SqlStatementWrapper

Field Summary

Fields inherited from class org.hibernate.loader.OuterJoinLoader

aliases, collectionOwners, collectionPersisters, collectionSuffixes, lockModeArray, ownerAssociationTypes, owners, persisters, sql, suffixes

Fields inherited from class org.hibernate.loader.BasicLoader

NO_SUFFIX

Fields inherited from class org.hibernate.loader.Loader

DEBUG_ENABLED, LOG, SELECT, SELECT_DISTINCT

Constructor Summary

Constructors

Constructor and Description
CriteriaLoader(OuterJoinLoadable persister, SessionFactoryImplementor factory, CriteriaImpl criteria, String rootEntityName, LoadQueryInfluencers loadQueryInfluencers)

Method Summary

Modifier and Type	Method and Description
protected String	applyLocks(String sql, QueryParameters parameters, Dialect dialect, List<AfterLoadAction> afterLoadActions) Append FOR UPDATE OF clause, if necessary.
protected boolean	areResultSetRowsTransformedImmediately() Are rows transformed immediately after being read from the ResultSet?
protected LockMode	determineFollowOnLockMode(LockOptions lockOptions)
protected LockMode[]	getLockModes(LockOptions lockOptions) What lock options does this load entities with?
protected String	getQueryIdentifier() Identifies the query for statistics reporting, if null, no statistics will be reported
Set	getQuerySpaces()
protected Object	getResultColumnOrRow(Object[] row, ResultTransformer transformer, ResultSet rs, SharedSessionContractImplementor session) Get the actual object that is returned in the user-visible result list.
protected List	getResultList(List results, ResultTransformer resultTransformer)
protected Object[]	getResultRow(Object[] row, ResultSet rs, SharedSessionContractImplementor session)
protected String[]	getResultRowAliases() Returns the aliases that corresponding to a result row.
protected boolean[]	includeInResultRow()
protected boolean	isSubselectLoadingEnabled()
List	list(SharedSessionContractImplementor session)
protected ResultTransformer	resolveResultTransformer(ResultTransformer resultTransformer) Determine the actual ResultTransformer that will be used to transform query results.
ScrollableResultsImplementor	scroll(SharedSessionContractImplementor session, ScrollMode scrollMode)

Methods inherited from class org.hibernate.loader.OuterJoinLoader

getAliases, getCollectionOwners, getCollectionPersisters, getCollectionSuffixes, getDialect, getEntityPersisters, getLoadQueryInfluencers, getLockOptions, getOwnerAssociationTypes, getOwners, getSQLString, getSuffixes, initFromWalker

Methods inherited from class org.hibernate.loader.BasicLoader

generateSuffixes, generateSuffixes, getCollectionAliases, getEntityAliases, postInstantiate

Methods inherited from class org.hibernate.loader.Loader

applyPostLoadLocks, autoDiscoverTypes, bindNamedParameters, bindParameterValues, bindPositionalParameters, checkScrollability, doList, doQueryAndInitializeNonLazyCollections, doQueryAndInitializeNonLazyCollections, executeQueryStatement, executeQueryStatement, extractKeysFromResultSet, getCompositeKeyManyToOneTargetIndices, getEntityEagerPropertyFetches, getFactory, getLimitHandler, getNamedParameterLocs, getResultSet, getResultSet, hasSubselectLoadableCollections, isSingleRowLoader, list, loadCollection, loadCollectionBatch, loadCollectionSubselect, loadEntity, loadEntity, loadEntityBatch, loadSequentialRowsForward, loadSequentialRowsReverse, loadSingleRow, needsFetchingScroll, prepareQueryStatement, preprocessSQL, processDistinctKeyword, processResultSet, putResultInQueryCache, scroll, shouldUseFollowOnLocking, toString, upgradeLocks

Methods inherited from class java.lang.Object

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

Constructor Detail

CriteriaLoader

public CriteriaLoader(OuterJoinLoadable persister,
                      SessionFactoryImplementor factory,
                      CriteriaImpl criteria,
                      String rootEntityName,
                      LoadQueryInfluencers loadQueryInfluencers)
               throws HibernateException

Throws:

HibernateException

Method Detail

scroll

public ScrollableResultsImplementor scroll(SharedSessionContractImplementor session,
                                           ScrollMode scrollMode)
                                    throws HibernateException

Throws:

HibernateException

list

public List list(SharedSessionContractImplementor session)
          throws HibernateException

Throws:

HibernateException

getResultRowAliases

protected String[] getResultRowAliases()

Description copied from class: Loader

Returns the aliases that corresponding to a result row.

Overrides:

getResultRowAliases in class Loader

Returns:

Returns the aliases that corresponding to a result row.

resolveResultTransformer

protected ResultTransformer resolveResultTransformer(ResultTransformer resultTransformer)

Description copied from class: Loader

Determine the actual ResultTransformer that will be used to transform query results.

Overrides:

resolveResultTransformer in class Loader

Parameters:

resultTransformer - the specified result transformer

Returns:

the actual result transformer

areResultSetRowsTransformedImmediately

protected boolean areResultSetRowsTransformedImmediately()

Description copied from class: Loader

Are rows transformed immediately after being read from the ResultSet?

Overrides:

areResultSetRowsTransformedImmediately in class Loader

Returns:

true, if getResultColumnOrRow() transforms the results; false, otherwise

includeInResultRow

protected boolean[] includeInResultRow()

Overrides:

includeInResultRow in class Loader

getResultColumnOrRow

protected Object getResultColumnOrRow(Object[] row,
                                      ResultTransformer transformer,
                                      ResultSet rs,
                                      SharedSessionContractImplementor session)
                               throws SQLException,
                                      HibernateException

Description copied from class: Loader

Get the actual object that is returned in the user-visible result list. This empty implementation merely returns its first argument. This is overridden by some subclasses.

Overrides:

getResultColumnOrRow in class Loader

Throws:

SQLException

HibernateException

getResultRow

protected Object[] getResultRow(Object[] row,
                                ResultSet rs,
                                SharedSessionContractImplementor session)
                         throws SQLException,
                                HibernateException

Overrides:

getResultRow in class Loader

Throws:

SQLException

HibernateException

getQuerySpaces

public Set getQuerySpaces()

applyLocks

protected String applyLocks(String sql,
                            QueryParameters parameters,
                            Dialect dialect,
                            List<AfterLoadAction> afterLoadActions)
                     throws QueryException

Description copied from class: Loader

Append FOR UPDATE OF clause, if necessary. This empty superclass implementation merely returns its first argument.

Overrides:

applyLocks in class Loader

Throws:

QueryException

determineFollowOnLockMode

protected LockMode determineFollowOnLockMode(LockOptions lockOptions)

Overrides:

determineFollowOnLockMode in class Loader

getLockModes

protected LockMode[] getLockModes(LockOptions lockOptions)

Description copied from class: Loader

What lock options does this load entities with?

Overrides:

getLockModes in class OuterJoinLoader

Parameters:

lockOptions - a collection of lock options specified dynamically via the Query interface

isSubselectLoadingEnabled

protected boolean isSubselectLoadingEnabled()

Overrides:

isSubselectLoadingEnabled in class Loader

getResultList

protected List getResultList(List results,
                             ResultTransformer resultTransformer)

Overrides:

getResultList in class Loader

getQueryIdentifier

protected String getQueryIdentifier()

Description copied from class: Loader

Identifies the query for statistics reporting, if null, no statistics will be reported

Overrides:

getQueryIdentifier in class Loader