org.hibernate.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.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
类名称：Query
方法名：setReadOnly

Query.setReadOnly介绍

[英]Set the read-only/modifiable mode for entities and proxies loaded by this Query. This setting overrides the default setting for the persistence context.
[中]为此查询加载的实体和代理设置只读/可修改模式。此设置覆盖持久性上下文的默认设置。

代码示例

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

  1. List list = s.createFilter( c.getLazyDataPoints(), "" )
  2.     .setMaxResults(1)
  3.     .setReadOnly( true )
  4.     .list();
  5. assertEquals( 1, list.size() );
  6. list = s.createFilter( c.getNonLazyJoinDataPoints(), "" )
  7.     .setMaxResults(1)
  8.     .setReadOnly( true )
  9.     .list();
  10. assertEquals( 1, list.size() );
  11. list = s.createFilter( c.getNonLazySelectDataPoints(), "" )
  12.     .setMaxResults(1)
  13.     .setReadOnly( true )
  14.     .list();
  15. assertEquals( 1, list.size() );

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

  1. List list = s.createFilter( c.getLazyDataPoints(), "" )
  2.     .setMaxResults(1)
  3.     .setReadOnly( false )
  4.     .list();
  5. assertEquals( 1, list.size() );
  6. list = s.createFilter( c.getNonLazyJoinDataPoints(), "" )
  7.     .setMaxResults(1)
  8.     .setReadOnly( false )
  9.     .list();
  10. assertEquals( 1, list.size() );
  11. list = s.createFilter( c.getNonLazySelectDataPoints(), "" )
  12.     .setMaxResults(1)
  13.     .setReadOnly( false )
  14.     .list();
  15. assertEquals( 1, list.size() );

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

  1. s.setDefaultReadOnly( false );
  2. assertFalse( query.isReadOnly() );
  3. query.setReadOnly( true );
  4. assertTrue( query.isReadOnly() );
  5. s.setDefaultReadOnly( true );
  6. s.setDefaultReadOnly( false );
  7. assertTrue( query.isReadOnly() );
  8. query.setReadOnly( false );
  9. assertFalse( query.isReadOnly() );
  10. s.setDefaultReadOnly( true );
  11. assertFalse( query.isReadOnly() );
  12. query.setReadOnly( true );
  13. assertTrue( query.isReadOnly() );
  14. s.setDefaultReadOnly( false );
  15. DataPoint dpLast = ( DataPoint ) s.get( DataPoint.class, dp.getId() );
  16. assertFalse( s.isReadOnly( dpLast ) );
  17. query.setReadOnly( false );
  18. assertFalse( query.isReadOnly() );
  19. int nExpectedChanges = 0;

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

  1. s.setDefaultReadOnly( true );
  2. assertTrue( query.isReadOnly() );
  3. query.setReadOnly( false );
  4. assertFalse( query.isReadOnly() );
  5. s.setDefaultReadOnly( false );
  6. s.setDefaultReadOnly( true );
  7. assertFalse( query.isReadOnly() );
  8. query.setReadOnly( true );
  9. assertTrue( query.isReadOnly() );
  10. s.setDefaultReadOnly( false );
  11. assertTrue( query.isReadOnly() );
  12. query.setReadOnly( false );
  13. assertFalse( query.isReadOnly() );
  14. s.setDefaultReadOnly( true );
  15. DataPoint dpLast = ( DataPoint ) s.get( DataPoint.class, dp.getId() );
  16. assertTrue( s.isReadOnly( dpLast ) );
  17. query.setReadOnly( true );
  18. assertTrue( query.isReadOnly() );
  19. int nExpectedChanges = 0;

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

  1. s.setDefaultReadOnly( true );
  2. assertTrue( query.isReadOnly() );
  3. query.setReadOnly( false );
  4. assertFalse( query.isReadOnly() );
  5. s.setDefaultReadOnly( false );
  6. s.setDefaultReadOnly( true );
  7. assertFalse( query.isReadOnly() );
  8. query.setReadOnly( true );
  9. assertTrue( query.isReadOnly() );
  10. s.setDefaultReadOnly( false );
  11. assertTrue( query.isReadOnly() );
  12. query.setReadOnly( false );
  13. assertFalse( query.isReadOnly() );
  14. s.setDefaultReadOnly( true );
  15. DataPoint dpLast = ( DataPoint ) s.get( DataPoint.class, dp.getId() );
  16. assertTrue( s.isReadOnly( dpLast ) );
  17. query.setReadOnly( true );
  18. assertTrue( query.isReadOnly() );
  19. int nExpectedChanges = 0;

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

  1. s.setDefaultReadOnly( false );
  2. assertFalse( query.isReadOnly() );
  3. query.setReadOnly( true );
  4. assertTrue( query.isReadOnly() );
  5. s.setDefaultReadOnly( true );
  6. s.setDefaultReadOnly( false );
  7. assertTrue( query.isReadOnly() );
  8. query.setReadOnly( false );
  9. assertFalse( query.isReadOnly() );
  10. s.setDefaultReadOnly( true );
  11. assertFalse( query.isReadOnly() );
  12. query.setReadOnly( true );
  13. assertTrue( query.isReadOnly() );
  14. s.setDefaultReadOnly( false );
  15. DataPoint dpLast = ( DataPoint ) s.get( DataPoint.class, dp.getId() );		
  16. assertFalse( s.isReadOnly( dpLast ) );
  17. query.setReadOnly( false );
  18. assertFalse( query.isReadOnly() );
  19. int nExpectedChanges = 0;

代码示例来源：origin: stackoverflow.com

  1. Query query = session.createQuery(query);
  2. query.setReadOnly(true);
  3. // MIN_VALUE gives hint to JDBC driver to stream results
  4. query.setFetchSize(Integer.MIN_VALUE);
  5. ScrollableResults results = query.scroll(ScrollMode.FORWARD_ONLY);
  6. // iterate over results
  7. while (results.next()) {
  8.   Object row = results.get();
  9.   // process row then release reference
  10.   // you may need to evict() as well
  11. }
  12. results.close();

代码示例来源：origin: ezbz/projectx

  1. @Override
  2. public Query setReadOnly(final boolean readOnly) {
  3.  return query.setReadOnly(readOnly);
  4. }

代码示例来源：origin: org.sakaiproject.samigo/samigo-services

  1. private int countItems(Map<String, String> hqlQueries, Session session) {
  2.   @SuppressWarnings("unchecked")
  3.   final List<Integer> totalItemsResult = session
  4.       .createQuery(hqlQueries.get(TOTAL_ITEM_COUNT_HQL))
  5.       .setReadOnly(true).list();
  6.   return totalItemsResult.get(0);
  7. }

代码示例来源：origin: sakaiproject/sakai

  1. private int countItems(Map<String, String> hqlQueries, Session session) {
  2.   @SuppressWarnings("unchecked")
  3.   final List<Integer> totalItemsResult = session
  4.       .createQuery(hqlQueries.get(TOTAL_ITEM_COUNT_HQL))
  5.       .setReadOnly(true).list();
  6.   return totalItemsResult.get(0);
  7. }

代码示例来源：origin: sakaiproject/sakai

  1. private int countItemsNeedingHashBackfill(Map<String, String> hqlQueries, Session session) {
  2.   @SuppressWarnings("unchecked")
  3.   final List<Integer> totalItemsNeedingBackfillResult = session
  4.       .createQuery(hqlQueries.get(TOTAL_HASH_BACKFILLABLE_ITEM_COUNT_HQL))
  5.       .setReadOnly(true).list();
  6.   return totalItemsNeedingBackfillResult.get(0);
  7. }

代码示例来源：origin: org.sakaiproject.samigo/samigo-services

  1. private int countItemsNeedingHashBackfill(Map<String, String> hqlQueries, Session session) {
  2.   @SuppressWarnings("unchecked")
  3.   final List<Integer> totalItemsNeedingBackfillResult = session
  4.       .createQuery(hqlQueries.get(TOTAL_HASH_BACKFILLABLE_ITEM_COUNT_HQL))
  5.       .setReadOnly(true).list();
  6.   return totalItemsNeedingBackfillResult.get(0);
  7. }

代码示例来源：origin: at.chrl/chrl-orm

  1. /**
  2.  * Creates {@link Stream} with given query Result
  3.  * 
  4.  * @param q
  5.  *            - given Query q. q is marked as ReadOnly with
  6.  *            {@link Query#setReadOnly(true)}
  7.  * @return new {@link Stream} with given ResultSet
  8.  */
  9. public <T> Stream<T> streamReadOnly(Query q) {
  10.   return stream(q.setReadOnly(true));
  11. }

代码示例来源：origin: org.ow2.bonita/bonita-server

  1. @Override
  2. public int getCasesNumber(final String ownerName, final String labelName) {
  3.  final Query query = getSession().getNamedQuery("getCasesNumber");
  4.  query.setString("ownerName", ownerName);
  5.  query.setString("label", labelName);
  6.  query.setReadOnly(true);
  7.  return ((Long) query.uniqueResult()).intValue();
  8. }

代码示例来源：origin: org.wso2.bpel/ode-dao-hibernate

  1. public boolean checkRoute(CorrelationKeySet correlationKeySet) {
  2.   entering("CorrelatorDaoImpl.checkRoute");
  3.   Query q = getSession().getNamedQuery(HCorrelatorSelector.SELECT_MESSAGE_ROUTE);
  4.   q.setEntity("corr",_hobj);
  5.   q.setString("ckey", correlationKeySet.toCanonicalString());
  6.   q.setReadOnly(true);
  7.   return q.list().isEmpty();
  8. }

代码示例来源：origin: stackoverflow.com

  1. Query query = session.createQuery(query);
  2. query.setReadOnly(true);
  3. setFetchSize(Integer.MIN_VALUE); //MUST use Integer.MIN_VALUE, other value=fetch all
  4. ScrollableResults results = query.scroll(ScrollMode.FORWARD_ONLY);
  5. // iterate over results
  6. while (results.next()) {
  7.   Object row = results.get();
  8. }
  9. results.close();

代码示例来源：origin: org.ow2.bonita/bonita-server

  1. @Override
  2. public int getCasesNumberWithTwoLabels(final String ownerName, final String label1Name, final String label2Name) {
  3.  final Query query = getSession().getNamedQuery("getCasesNumberWithTwoLabels");
  4.  query.setString("label1", CaseImpl.buildLabel(ownerName, label1Name));
  5.  query.setString("label2", CaseImpl.buildLabel(ownerName, label2Name));
  6.  query.setReadOnly(true);
  7.  return ((Long) query.uniqueResult()).intValue();
  8. }

代码示例来源：origin: stackoverflow.com

  1. Query query = session.createQuery(query);
  2. query.setReadOnly(true);
  3. // MIN_VALUE gives hint to JDBC driver to stream results
  4. query.setFetchSize(Integer.MIN_VALUE);
  5. ScrollableResults results = query.scroll(ScrollMode.FORWARD_ONLY);
  6. // iterate over results
  7. while (results.next()) {
  8.   Object row = results.get();
  9.   // process row then release reference
  10.   // you may need to evict() as well
  11. }
  12. results.close();

代码示例来源：origin: stackoverflow.com

  1. Query query = session.createQuery(query);
  2. query.setReadOnly(true);
  3. query.setFetchSize(Integer.MIN_VALUE);
  4. ScrollableResults results = query.scroll(ScrollMode.FORWARD_ONLY);
  5. // iterate over results
  6. while (results.next()) {
  7.   Object row = results.get();
  8.   // process row then release reference
  9.   // you may need to evict() as well
  10. }
  11. results.close();

代码示例来源：origin: stackoverflow.com

  1. Query query = session.createQuery(query);
  2. query.setReadOnly(true);
  3. // MIN_VALUE gives hint to JDBC driver to stream results
  4. query.setFetchSize(Integer.MIN_VALUE);
  5. ScrollableResults results = query.scroll(ScrollMode.FORWARD_ONLY);
  6. // iterate over results
  7. while (results.next()) {
  8.   Object row = results.get();
  9.   // process row then release reference
  10.   // you may need to flush() as well
  11. }
  12. results.close();

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