java.lang.Object
- org.hibernate.loader.Loader
- - org.hibernate.loader.BasicLoader
  - - org.hibernate.loader.hql.QueryLoader

```
public class QueryLoader
extends BasicLoader
```
A delegate that implements the Loader part of QueryTranslator.

作者:

josh

嵌套类概要
- 从类继承的嵌套类/接口 org.hibernate.loader.Loader
  Loader.SqlStatementWrapper

字段概要
- 从类继承的字段 org.hibernate.loader.BasicLoader
  NO_SUFFIX
- 从类继承的字段 org.hibernate.loader.Loader
  LOG, SELECT, SELECT_DISTINCT

构造器概要

构造器
构造器	说明
`QueryLoader(QueryTranslatorImpl queryTranslator, SessionFactoryImplementor factory, SelectClause selectClause)`	Creates a new Loader implementation.

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`protected String`	`applyLocks(String sql, QueryParameters parameters, Dialect dialect, List<AfterLoadAction> afterLoadActions)`	Append `FOR UPDATE OF` clause, if necessary.
`protected void`	`applyPostLoadLocks(Object[] row, LockMode[] lockModesArray, SharedSessionContractImplementor session)`
`protected int`	`bindParameterValues(PreparedStatement statement, QueryParameters queryParameters, int startIndex, SharedSessionContractImplementor session)`	We specifically override this method here, because in general we know much more about the parameters and their appropriate bind positions here then we do in our super because we track them explicitly here through the ParameterSpecification interface.
`AggregatedSelectExpression`	`getAggregatedSelectExpression()`
`String[]`	`getAliases()`	Get the SQL table aliases of entities whose associations are subselect-loadable, returning null if this loader does not support subselect loading
`protected int[]`	`getCollectionOwners()`	Get the index of the entity that owns the collection, or -1 if there is no owner in the query results (ie. in the case of a collection initializer) or no collection.
`protected CollectionPersister[]`	`getCollectionPersisters()`	An (optional) persister for a collection to be initialized; only collection loaders return a non-null value
`String[]`	`getCollectionSuffixes()`
`protected boolean[]`	`getEntityEagerPropertyFetches()`	An array indicating whether the entities have eager property fetching enabled.
`Loadable[]`	`getEntityPersisters()`	An array of persisters of entity classes contained in each row of results; implemented by all subclasses
`protected LockMode[]`	`getLockModes(LockOptions lockOptions)`	What lock options does this load entities with?
`int[]`	`getNamedParameterLocs(String name)`	Returns the locations of all occurrences of the named parameter.
`protected EntityType[]`	`getOwnerAssociationTypes()`	An array of the owner types corresponding to the `Loader.getOwners()` returns.
`protected int[]`	`getOwners()`	An array of indexes of the entity that owns a one-to-one association to the entity at the given index (-1 if there is no "owner")
`protected String`	`getQueryIdentifier()`	Identifies the query for statistics reporting, if null, no statistics will be reported
`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.
`String[]`	`getSqlAliasSuffixes()`
`String`	`getSQLString()`	The SQL query string to be called.
`String[]`	`getSuffixes()`
`protected boolean[]`	`includeInResultRow()`
`protected boolean`	`isSubselectLoadingEnabled()`
`Iterator`	`iterate(QueryParameters queryParameters, EventSource session)`
`List`	`list(SharedSessionContractImplementor session, QueryParameters queryParameters)`
`protected boolean`	`needsFetchingScroll()`	Does the result set to be scrolled contain collection fetches?
`protected ResultTransformer`	`resolveResultTransformer(ResultTransformer resultTransformer)`	Determine the actual ResultTransformer that will be used to transform query results.
`ScrollableResultsImplementor`	`scroll(QueryParameters queryParameters, SharedSessionContractImplementor session)`
`protected boolean`	`upgradeLocks()`	Does this query return objects that might be already cached by the session, whose lock mode may need upgrading
`void`	`validateScrollability()`

从类继承的方法 org.hibernate.loader.BasicLoader
generateSuffixes, generateSuffixes, getCollectionAliases, getEntityAliases, postInstantiate

从类继承的方法 org.hibernate.loader.Loader
areResultSetRowsTransformedImmediately, autoDiscoverTypes, bindNamedParameters, bindPositionalParameters, checkScrollability, determineFollowOnLockMode, doList, doQueryAndInitializeNonLazyCollections, doQueryAndInitializeNonLazyCollections, executeQueryStatement, executeQueryStatement, extractKeysFromResultSet, getCompositeKeyManyToOneTargetIndices, getFactory, getLimitHandler, getResultSet, getResultSet, hasSubselectLoadableCollections, isSingleRowLoader, list, loadCollection, loadCollectionBatch, loadCollectionSubselect, loadEntity, loadEntity, loadEntityBatch, loadEntityBatch, loadSequentialRowsForward, loadSequentialRowsReverse, loadSingleRow, prepareQueryStatement, preprocessSQL, processDistinctKeyword, processResultSet, putResultInQueryCache, scroll, shouldUseFollowOnLocking, toString

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- 构造器详细资料
  - QueryLoader
```
public QueryLoader(QueryTranslatorImpl queryTranslator,
                   SessionFactoryImplementor factory,
                   SelectClause selectClause)
```
    Creates a new Loader implementation.
    
    参数:
    
    queryTranslator - The query translator that is the delegator.
    
    factory - The factory from which this loader is being created.
    
    selectClause - The AST representing the select clause for loading.
- 方法详细资料
  - getAggregatedSelectExpression
```
public AggregatedSelectExpression getAggregatedSelectExpression()
```
  - validateScrollability
```
public final void validateScrollability()
                                 throws HibernateException
```
    抛出:
    
    HibernateException
  - needsFetchingScroll
```
protected boolean needsFetchingScroll()
```
    从类复制的说明: Loader
    
    Does the result set to be scrolled contain collection fetches?
    
    覆盖:
    
    needsFetchingScroll 在类中 Loader
    
    返回:
    
    True if it does, and thus needs the special fetching scroll functionality; false otherwise.
  - getEntityPersisters
```
public Loadable[] getEntityPersisters()
```
    从类复制的说明: Loader
    
    An array of persisters of entity classes contained in each row of results; implemented by all subclasses
    
    指定者:
    
    getEntityPersisters 在类中 Loader
    
    返回:
    
    The entity persisters.
  - getAliases
```
public String[] getAliases()
```
    从类复制的说明: Loader
    
    Get the SQL table aliases of entities whose associations are subselect-loadable, returning null if this loader does not support subselect loading
    
    覆盖:
    
    getAliases 在类中 Loader
  - getSqlAliasSuffixes
```
public String[] getSqlAliasSuffixes()
```
  - getSuffixes
```
public String[] getSuffixes()
```
    指定者:
    
    getSuffixes 在类中 BasicLoader
  - getCollectionSuffixes
```
public String[] getCollectionSuffixes()
```
    指定者:
    
    getCollectionSuffixes 在类中 BasicLoader
  - getQueryIdentifier
```
protected String getQueryIdentifier()
```
    从类复制的说明: Loader
    
    Identifies the query for statistics reporting, if null, no statistics will be reported
    
    覆盖:
    
    getQueryIdentifier 在类中 Loader
  - getSQLString
```
public String getSQLString()
```
    The SQL query string to be called.
    
    指定者:
    
    getSQLString 在类中 Loader
    
    返回:
    
    The sql command this loader should use to get its ResultSet.
  - getCollectionPersisters
```
protected CollectionPersister[] getCollectionPersisters()
```
    An (optional) persister for a collection to be initialized; only collection loaders return a non-null value
    
    覆盖:
    
    getCollectionPersisters 在类中 Loader
  - getCollectionOwners
```
protected int[] getCollectionOwners()
```
    从类复制的说明: Loader
    
    Get the index of the entity that owns the collection, or -1 if there is no owner in the query results (ie. in the case of a collection initializer) or no collection.
    
    覆盖:
    
    getCollectionOwners 在类中 Loader
  - getEntityEagerPropertyFetches
```
protected boolean[] getEntityEagerPropertyFetches()
```
    从类复制的说明: Loader
    
    An array indicating whether the entities have eager property fetching enabled.
    
    覆盖:
    
    getEntityEagerPropertyFetches 在类中 Loader
    
    返回:
    
    Eager property fetching indicators.
  - getOwners
```
protected int[] getOwners()
```
    An array of indexes of the entity that owns a one-to-one association to the entity at the given index (-1 if there is no "owner")
    
    覆盖:
    
    getOwners 在类中 Loader
    
    返回:
    
    The owner indicators (see discussion above).
  - getOwnerAssociationTypes
```
protected EntityType[] getOwnerAssociationTypes()
```
    从类复制的说明: Loader
    
    An array of the owner types corresponding to the Loader.getOwners() returns. Indices indicating no owner would be null here.
    
    覆盖:
    
    getOwnerAssociationTypes 在类中 Loader
    
    返回:
    
    The types for the owners.
  - isSubselectLoadingEnabled
```
protected boolean isSubselectLoadingEnabled()
```
    覆盖:
    
    isSubselectLoadingEnabled 在类中 Loader
  - getLockModes
```
protected LockMode[] getLockModes(LockOptions lockOptions)
```
    从类复制的说明: Loader
    
    What lock options does this load entities with?
    
    指定者:
    
    getLockModes 在类中 Loader
    
    参数:
    
    lockOptions - a collection of lock modes specified dynamically via the Query interface
  - applyLocks
```
protected String applyLocks(String sql,
                            QueryParameters parameters,
                            Dialect dialect,
                            List<AfterLoadAction> afterLoadActions)
                     throws QueryException
```
    从类复制的说明: Loader
    
    Append FOR UPDATE OF clause, if necessary. This empty superclass implementation merely returns its first argument.
    
    覆盖:
    
    applyLocks 在类中 Loader
    
    抛出:
    
    QueryException
  - applyPostLoadLocks
```
protected void applyPostLoadLocks(Object[] row,
                                  LockMode[] lockModesArray,
                                  SharedSessionContractImplementor session)
```
    覆盖:
    
    applyPostLoadLocks 在类中 Loader
  - upgradeLocks
```
protected boolean upgradeLocks()
```
    从类复制的说明: Loader
    
    Does this query return objects that might be already cached by the session, whose lock mode may need upgrading
    
    覆盖:
    
    upgradeLocks 在类中 Loader
  - getResultRowAliases
```
protected String[] getResultRowAliases()
```
    从类复制的说明: Loader
    
    Returns the aliases that corresponding to a result row.
    
    覆盖:
    
    getResultRowAliases 在类中 Loader
    
    返回:
    
    Returns the aliases that corresponding to a result row.
  - resolveResultTransformer
```
protected ResultTransformer resolveResultTransformer(ResultTransformer resultTransformer)
```
    从类复制的说明: Loader
    
    Determine the actual ResultTransformer that will be used to transform query results.
    
    覆盖:
    
    resolveResultTransformer 在类中 Loader
    
    参数:
    
    resultTransformer - the specified result transformer
    
    返回:
    
    the actual result transformer
  - includeInResultRow
```
protected boolean[] includeInResultRow()
```
    覆盖:
    
    includeInResultRow 在类中 Loader
  - getResultColumnOrRow
```
protected Object getResultColumnOrRow(Object[] row,
                                      ResultTransformer transformer,
                                      ResultSet rs,
                                      SharedSessionContractImplementor session)
                               throws SQLException,
                                      HibernateException
```
    从类复制的说明: 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.
    
    覆盖:
    
    getResultColumnOrRow 在类中 Loader
    
    抛出:
    
    SQLException
    
    HibernateException
  - getResultRow
```
protected Object[] getResultRow(Object[] row,
                                ResultSet rs,
                                SharedSessionContractImplementor session)
                         throws SQLException,
                                HibernateException
```
    覆盖:
    
    getResultRow 在类中 Loader
    
    抛出:
    
    SQLException
    
    HibernateException
  - getResultList
```
protected List getResultList(List results,
                             ResultTransformer resultTransformer)
                      throws QueryException
```
    覆盖:
    
    getResultList 在类中 Loader
    
    抛出:
    
    QueryException
  - list
```
public List list(SharedSessionContractImplementor session,
                 QueryParameters queryParameters)
          throws HibernateException
```
    抛出:
    
    HibernateException
  - iterate
```
public Iterator iterate(QueryParameters queryParameters,
                        EventSource session)
                 throws HibernateException
```
    抛出:
    
    HibernateException
  - scroll
```
public ScrollableResultsImplementor scroll(QueryParameters queryParameters,
                                           SharedSessionContractImplementor session)
                                    throws HibernateException
```
    抛出:
    
    HibernateException
  - getNamedParameterLocs
```
public int[] getNamedParameterLocs(String name)
                            throws QueryException
```
    Returns the locations of all occurrences of the named parameter.
    
    覆盖:
    
    getNamedParameterLocs 在类中 Loader
    
    抛出:
    
    QueryException
  - bindParameterValues
```
protected int bindParameterValues(PreparedStatement statement,
                                  QueryParameters queryParameters,
                                  int startIndex,
                                  SharedSessionContractImplementor session)
                           throws SQLException
```
    We specifically override this method here, because in general we know much more about the parameters and their appropriate bind positions here then we do in our super because we track them explicitly here through the ParameterSpecification interface.
    
    覆盖:
    
    bindParameterValues 在类中 Loader
    
    参数:
    
    queryParameters - The encapsulation of the parameter values to be bound.
    
    startIndex - The position from which to start binding parameter values.
    
    session - The originating session.
    
    statement - The JDBC prepared statement
    
    返回:
    
    The number of JDBC bind positions actually bound during this method execution.
    
    抛出:
    
    SQLException - Indicates problems performing the binding.

类 QueryLoader

嵌套类概要

从类继承的嵌套类/接口 org.hibernate.loader.Loader

字段概要

从类继承的字段 org.hibernate.loader.BasicLoader

从类继承的字段 org.hibernate.loader.Loader

构造器概要

方法概要

从类继承的方法 org.hibernate.loader.BasicLoader

从类继承的方法 org.hibernate.loader.Loader

从类继承的方法 java.lang.Object

构造器详细资料

QueryLoader

方法详细资料

getAggregatedSelectExpression

validateScrollability

needsFetchingScroll

getEntityPersisters

getAliases

getSqlAliasSuffixes

getSuffixes

getCollectionSuffixes

getQueryIdentifier

getSQLString

getCollectionPersisters

getCollectionOwners

getEntityEagerPropertyFetches

getOwners

getOwnerAssociationTypes

isSubselectLoadingEnabled

getLockModes

applyLocks

applyPostLoadLocks

upgradeLocks

getResultRowAliases

resolveResultTransformer

includeInResultRow

getResultColumnOrRow

getResultRow

getResultList

list

iterate

scroll

getNamedParameterLocs

bindParameterValues