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QueryImpl (Hibernate API Documentation) - Hibernate 3.2.3 正式版 API 英文文档

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org.hibernate.impl
Class QueryImpl

java.lang.Object
  org.hibernate.impl.AbstractQueryImpl
      org.hibernate.impl.QueryImpl

All Implemented Interfaces:

Query

Direct Known Subclasses:

CollectionFilterImpl

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public class QueryImpl

extends AbstractQueryImpl

default implementation of the Query interface, for "ordinary" HQL queries (not collection filters)

Author:

Gavin King

See Also:

CollectionFilterImpl

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Field Summary

 

Fields inherited from class org.hibernate.impl.AbstractQueryImpl

parameterMetadata, session

 

Constructor Summary

QueryImpl(String queryString, FlushMode flushMode, SessionImplementor session, ParameterMetadata parameterMetadata)

QueryImpl(String queryString, SessionImplementor session, ParameterMetadata parameterMetadata)

 

Method Summary
int	executeUpdate()           Execute the update or delete statement.
protected  Map	getLockModes()
Iterator	iterate()           Return the query results as an Iterator.
List	list()           Return the query results as a List.
ScrollableResults	scroll()           Return the query results as ScrollableResults.
ScrollableResults	scroll(ScrollMode scrollMode)           Return the query results as ScrollableResults.
Query	setLockMode(String alias, LockMode lockMode)           Set the lockmode for the objects idententified by the given alias that appears in the FROM clause.

 

Methods inherited from class org.hibernate.impl.AbstractQueryImpl

after, before, determineType, determineType, determineType, determineType, determineType, expandParameterLists, getNamedParameterLists, getNamedParameters, getNamedParams, getQueryParameters, getQueryString, getReturnAliases, getReturnTypes, getRowSelection, getSelection, getTypes, getValues, hasNamedParameters, isReadOnly, setBigDecimal, setBigDecimal, setBigInteger, setBigInteger, setBinary, setBinary, setBoolean, setBoolean, setByte, setByte, setCacheable, setCacheMode, setCacheRegion, setCalendar, setCalendar, setCalendarDate, setCalendarDate, setCharacter, setCharacter, setCollectionKey, setComment, setDate, setDate, setDouble, setDouble, setEntity, setEntity, setFetchSize, setFirstResult, setFloat, setFloat, setFlushMode, setInteger, setInteger, setLocale, setLocale, setLong, setLong, setMaxResults, setOptionalEntityName, setOptionalId, setOptionalObject, setParameter, setParameter, setParameter, setParameter, setParameterList, setParameterList, setParameterList, setParameterList, setParameters, setProperties, setProperties, setReadOnly, setResultTransformer, setSerializable, setSerializable, setShort, setShort, setString, setString, setText, setText, setTime, setTime, setTimeout, setTimestamp, setTimestamp, toString, typeArray, uniqueResult, valueArray, verifyParameters, verifyParameters

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

QueryImpl

public QueryImpl(String queryString,
                 FlushMode flushMode,
                 SessionImplementor session,
                 ParameterMetadata parameterMetadata)

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QueryImpl

public QueryImpl(String queryString,
                 SessionImplementor session,
                 ParameterMetadata parameterMetadata)

Method Detail

iterate

public Iterator iterate()
                 throws HibernateException

Description copied from interface: Query

Return the query results as an Iterator. If the query contains multiple results pre row, the results are returned in an instance of Object[].

Entities returned as results are initialized on demand. The first SQL query returns identifiers only.

Returns:

the result iterator

Throws:

HibernateException

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scroll

public ScrollableResults scroll()
                         throws HibernateException

Description copied from interface: Query

Return the query results as ScrollableResults. The scrollability of the returned results depends upon JDBC driver support for scrollable ResultSets.

Returns:

the result iterator

Throws:

HibernateException

See Also:

ScrollableResults

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scroll

public ScrollableResults scroll(ScrollMode scrollMode)
                         throws HibernateException

Description copied from interface: Query

Return the query results as ScrollableResults. The scrollability of the returned results depends upon JDBC driver support for scrollable ResultSets.

Returns:

the result iterator

Throws:

HibernateException

See Also:

ScrollableResults, ScrollMode

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list

public List list()
          throws HibernateException

Description copied from interface: Query

Return the query results as a List. If the query contains multiple results pre row, the results are returned in an instance of Object[].

Returns:

the result list

Throws:

HibernateException

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executeUpdate

public int executeUpdate()
                  throws HibernateException

Description copied from interface: Query

Execute the update or delete statement.

The semantics are compliant with the ejb3 Query.executeUpdate() method.

Returns:

The number of entities updated or deleted.

Throws:

HibernateException

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setLockMode

public Query setLockMode(String alias,
                         LockMode lockMode)

Description copied from interface: Query

Set the lockmode for the objects idententified by the given alias that appears in the FROM clause.

Parameters:

alias - a query alias, or this for a collection filter

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getLockModes

protected Map getLockModes()

Specified by:

getLockModes in class AbstractQueryImpl

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