org.hibernate.query.Query.setReadOnly()方法的使用及代码示例

x33g5p2x  于2022-01-28 转载在 其他  
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本文整理了Java中org.hibernate.query.Query.setReadOnly方法的一些代码示例，展示了Query.setReadOnly的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Query.setReadOnly方法的具体详情如下：
包路径：org.hibernate.query.Query
类名称：Query
方法名：setReadOnly

Query.setReadOnly介绍

暂无

代码示例

代码示例来源：origin: spring-projects/spring-data-jpa

  1. /**
  2.  * Creates a new {@link HibernateScrollableResultsIterator} for the given {@link Query}.
  3.  *
  4.  * @param jpaQuery must not be {@literal null}.
  5.  */
  6. HibernateScrollableResultsIterator(Query jpaQuery) {
  7.   org.hibernate.query.Query<?> query = jpaQuery.unwrap(org.hibernate.query.Query.class);
  8.   this.scrollableResults = query.setReadOnly(TransactionSynchronizationManager.isCurrentTransactionReadOnly())//
  9.       .scroll(ScrollMode.FORWARD_ONLY);
  10. }

代码示例来源：origin: hibernate/hibernate-orm

  1. @Test
  2.   public void test_hql_read_only_entities_native_example() {
  4.     doInJPA( this::entityManagerFactory, entityManager -> {
  5.       //tag::hql-read-only-entities-native-example[]
  6.       List<Call> calls = entityManager.createQuery(
  7.         "select c " +
  8.         "from Call c " +
  9.         "join c.phone p " +
  10.         "where p.number = :phoneNumber ", Call.class )
  11.       .setParameter( "phoneNumber", "123-456-7890" )
  12.       .unwrap( org.hibernate.query.Query.class )
  13.       .setReadOnly( true )
  14.       .getResultList();
  15.       //end::hql-read-only-entities-native-example[]
  16.     });
  17.   }
  18. }

代码示例来源：origin: hibernate/hibernate-orm

  1. int i = 0;
  2. Iterator it = s.createQuery("from DataPoint dp order by dp.x asc")
  3.     .setReadOnly( false )
  4.     .iterate();
  5. while ( it.hasNext() ) {

代码示例来源：origin: hibernate/hibernate-orm

  1. int i = 0;
  2. Iterator it = s.createQuery("from DataPoint dp order by dp.x asc")
  3.     .setReadOnly( true )
  4.     .iterate();
  5. while ( it.hasNext() ) {

代码示例来源：origin: hibernate/hibernate-orm

  1. int i = 0;
  2. ScrollableResults sr = s.createQuery("from DataPoint dp order by dp.x asc")
  3.     .setReadOnly( false )
  4.     .scroll(ScrollMode.FORWARD_ONLY);
  5. while ( sr.next() ) {

代码示例来源：origin: hibernate/hibernate-orm

  1. int i = 0;
  2. ScrollableResults sr = s.createQuery("from DataPoint dp order by dp.x asc")
  3.     .setReadOnly( true )
  4.     .scroll(ScrollMode.FORWARD_ONLY);
  5. while ( sr.next() ) {

代码示例来源：origin: hibernate/hibernate-orm

  1. @Test
  2. public void testReadOnlyModeAutoFlushOnQuery() {
  3.   clearCounts();
  4.   Session s = openSession();
  5.   Transaction t = s.beginTransaction();
  6.   DataPoint dpFirst = null;
  7.   for ( int i=0; i<100; i++ ) {
  8.     DataPoint dp = new DataPoint();
  9.     dp.setX( new BigDecimal(i * 0.1d).setScale(19, BigDecimal.ROUND_DOWN) );
  10.     dp.setY( new BigDecimal( Math.cos( dp.getX().doubleValue() ) ).setScale(19, BigDecimal.ROUND_DOWN) );
  11.     s.save(dp);
  12.   }
  13.   assertInsertCount( 0 );
  14.   assertUpdateCount( 0 );
  15.   ScrollableResults sr = s.createQuery("from DataPoint dp order by dp.x asc")
  16.       .setReadOnly(true)
  17.       .scroll(ScrollMode.FORWARD_ONLY);
  18.   assertInsertCount( 100 );
  19.   assertUpdateCount( 0 );
  20.   clearCounts();
  21.   while ( sr.next() ) {
  22.     DataPoint dp = (DataPoint) sr.get(0);
  23.     assertFalse( s.isReadOnly( dp ) );
  24.     s.delete( dp );
  25.   }
  26.   t.commit();
  27.   s.close();
  28.   assertUpdateCount( 0 );
  29.   assertDeleteCount( 100 );
  30. }

代码示例来源：origin: hibernate/hibernate-orm

  1. int i = 0;
  2. ScrollableResults sr = s.createQuery("from DataPoint dp order by dp.x asc")
  3.     .setReadOnly(true)
  4.     .scroll(ScrollMode.FORWARD_ONLY);
  5. while ( sr.next() ) {

代码示例来源：origin: hibernate/hibernate-orm

  1. assertFalse( s.isDefaultReadOnly() );
  2. DataPoint dp = ( DataPoint ) s.createQuery( "select c.lazyDataPoints from Container c join c.lazyDataPoints where c.id=" + cOrig.getId() )
  3.     .setReadOnly( true ).uniqueResult();
  4. assertTrue( s.isReadOnly( dp ) );
  5. t.commit();

代码示例来源：origin: hibernate/hibernate-orm

  1. int i = 0;
  2. ScrollableResults sr = s.createQuery("from DataPoint dp order by dp.x asc")
  3.     .setReadOnly(false)
  4.     .scroll(ScrollMode.FORWARD_ONLY);
  5. int nExpectedChanges = 0;

代码示例来源：origin: hibernate/hibernate-orm

  1. assertTrue( s.isDefaultReadOnly() );
  2. Container c = ( Container ) s.createQuery( "from Container where id=" + cOrig.getId() )
  3.     .setReadOnly( false ).uniqueResult();
  4. expectedInitializedObjects = new HashSet(
  5.     Arrays.asList(

代码示例来源：origin: hibernate/hibernate-orm

  1. int i = 0;
  2. ScrollableResults sr = s.createQuery("from DataPoint dp order by dp.x asc")
  3.     .setReadOnly(true)
  4.     .scroll(ScrollMode.FORWARD_ONLY);
  5. int nExpectedChanges = 0;

代码示例来源：origin: hibernate/hibernate-orm

  1. .setReadOnly(false)
  2.     .scroll(ScrollMode.FORWARD_ONLY);
  3. int nExpectedChanges = 0;

代码示例来源：origin: hibernate/hibernate-orm

  1. assertFalse( s.isDefaultReadOnly() );
  2. Container c = ( Container ) s.createQuery( "from Container where id=" + cOrig.getId() )
  3.     .setReadOnly( true ).uniqueResult();
  4. expectedInitializedObjects = new HashSet(
  5.     Arrays.asList(

代码示例来源：origin: hibernate/hibernate-orm

  1. @Test
  2. public void testModifiableViaSessionBeforeInitByModifiableQuery() {
  3.   DataPoint dpOrig = createDataPoint( CacheMode.IGNORE );
  4.   Session s = openSession();
  5.   s.setCacheMode(CacheMode.IGNORE);
  6.   s.beginTransaction();
  7.   DataPoint dp = ( DataPoint ) s.load( DataPoint.class, new Long( dpOrig.getId() ) );
  8.   assertTrue( dp instanceof HibernateProxy );
  9.   assertFalse( Hibernate.isInitialized( dp ) );
  10.   checkReadOnly( s, dp, false );
  11.   DataPoint dpFromQuery = ( DataPoint ) s.createQuery( "from DataPoint where id=" + dpOrig.getId() ).setReadOnly( false ).uniqueResult();
  12.   assertTrue( Hibernate.isInitialized( dpFromQuery ) );
  13.   assertSame( dp, dpFromQuery );
  14.   checkReadOnly( s, dp, false );
  15.   dp.setDescription( "changed" );
  16.   assertEquals( "changed", dp.getDescription() );
  17.   s.flush();
  18.   s.getTransaction().commit();
  19.   s.close();
  20.   s = openSession();
  21.   s.beginTransaction();
  22.   dp = ( DataPoint ) s.get( DataPoint.class, dpOrig.getId() );
  23.   assertEquals( dpOrig.getId(), dp.getId() );
  24.   assertEquals( "changed", dp.getDescription() );
  25.   assertEquals( dpOrig.getX(), dp.getX() );
  26.   assertEquals( dpOrig.getY(), dp.getY() );
  27.   s.delete( dp );
  28.   s.getTransaction().commit();
  29.   s.close();
  30. }

代码示例来源：origin: hibernate/hibernate-orm

  1. @Test
  2. public void testModifiableViaSessionBeforeInitByReadOnlyQuery() {
  3.   DataPoint dpOrig = createDataPoint( CacheMode.IGNORE );
  4.   Session s = openSession();
  5.   s.setCacheMode(CacheMode.IGNORE);
  6.   s.beginTransaction();
  7.   DataPoint dp = ( DataPoint ) s.load( DataPoint.class, new Long( dpOrig.getId() ) );
  8.   assertTrue( dp instanceof HibernateProxy );
  9.   checkReadOnly( s, dp, false );
  10.   assertFalse( Hibernate.isInitialized( dp ) );
  11.   DataPoint dpFromQuery = ( DataPoint ) s.createQuery( "from DataPoint where id=" + dpOrig.getId() ).setReadOnly( true ).uniqueResult();
  12.   assertTrue( Hibernate.isInitialized( dpFromQuery ) );
  13.   assertSame( dp, dpFromQuery );
  14.   checkReadOnly( s, dp, false );
  15.   dp.setDescription( "changed" );
  16.   assertEquals( "changed", dp.getDescription() );
  17.   s.flush();
  18.   s.getTransaction().commit();
  19.   s.close();
  20.   s = openSession();
  21.   s.beginTransaction();
  22.   dp = ( DataPoint ) s.get( DataPoint.class, dpOrig.getId() );
  23.   assertEquals( dpOrig.getId(), dp.getId() );
  24.   assertEquals( "changed", dp.getDescription() );
  25.   assertEquals( dpOrig.getX(), dp.getX() );
  26.   assertEquals( dpOrig.getY(), dp.getY() );
  27.   s.delete( dp );
  28.   s.getTransaction().commit();
  29.   s.close();
  30. }

代码示例来源：origin: hibernate/hibernate-orm

  1. s.setReadOnly( dp, true );
  2. checkReadOnly( s, dp, true );
  3. DataPoint dpFromQuery = ( DataPoint ) s.createQuery( "from DataPoint where id=" + dpOrig.getId() ).setReadOnly( true ).uniqueResult();
  4. assertTrue( Hibernate.isInitialized( dpFromQuery ) );
  5. assertSame( dp, dpFromQuery );

代码示例来源：origin: hibernate/hibernate-orm

  1. checkReadOnly( s, dp, true );
  2. assertFalse( Hibernate.isInitialized( dp ) );
  3. DataPoint dpFromQuery = ( DataPoint ) s.createQuery( "from DataPoint where id=" + dpOrig.getId() ).setReadOnly( false ).uniqueResult();
  4. assertTrue( Hibernate.isInitialized( dpFromQuery ) );
  5. assertSame( dp, dpFromQuery );

代码示例来源：origin: hibernate/hibernate-orm

  1. protected void initQueryFromNamedDefinition(Query query, NamedQueryDefinition nqd) {
  2.   // todo : cacheable and readonly should be Boolean rather than boolean...
  3.   query.setCacheable( nqd.isCacheable() );
  4.   query.setCacheRegion( nqd.getCacheRegion() );
  5.   query.setReadOnly( nqd.isReadOnly() );
  6.   if ( nqd.getTimeout() != null ) {
  7.     query.setTimeout( nqd.getTimeout() );
  8.   }
  9.   if ( nqd.getFetchSize() != null ) {
  10.     query.setFetchSize( nqd.getFetchSize() );
  11.   }
  12.   if ( nqd.getCacheMode() != null ) {
  13.     query.setCacheMode( nqd.getCacheMode() );
  14.   }
  15.   if ( nqd.getComment() != null ) {
  16.     query.setComment( nqd.getComment() );
  17.   }
  18.   if ( nqd.getFirstResult() != null ) {
  19.     query.setFirstResult( nqd.getFirstResult() );
  20.   }
  21.   if ( nqd.getMaxResults() != null ) {
  22.     query.setMaxResults( nqd.getMaxResults() );
  23.   }
  24.   if ( nqd.getFlushMode() != null ) {
  25.     query.setHibernateFlushMode( nqd.getFlushMode() );
  26.   }
  27. }

代码示例来源：origin: org.springframework.data/spring-data-jpa

  1. /**
  2.  * Creates a new {@link HibernateScrollableResultsIterator} for the given {@link Query}.
  3.  *
  4.  * @param jpaQuery must not be {@literal null}.
  5.  */
  6. HibernateScrollableResultsIterator(Query jpaQuery) {
  7.   org.hibernate.query.Query<?> query = jpaQuery.unwrap(org.hibernate.query.Query.class);
  8.   this.scrollableResults = query.setReadOnly(TransactionSynchronizationManager.isCurrentTransactionReadOnly())//
  9.       .scroll(ScrollMode.FORWARD_ONLY);
  10. }

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