本文整理了Java中org.hibernate.Query.scroll方法的一些代码示例，展示了Query.scroll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.scroll方法的具体详情如下：
包路径：org.hibernate.Query
类名称：Query
方法名：scroll

Query.scroll介绍

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

You should call ScrollableResults#close() after processing the ScrollableResults so that the underlying resources are deallocated right away.
[中]将查询结果作为可滚动结果返回。返回结果的可滚动性取决于JDBC驱动程序对可滚动结果集的支持。
在处理ScrollableResults之后，应该调用ScrollableResults#close（），以便立即释放底层资源。

代码示例

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

public SyntaxChecker checkScroll() {
  Session s = openSession();
  s.beginTransaction();
  Query query = s.createQuery( hql );
  preparer.prepare( query );
  query.scroll();
  s.getTransaction().commit();
  s.close();
  return this;
}

代码示例来源：origin: spring-projects/spring-batch

/**
 * Get a cursor over all of the results, with the forward-only flag set.
 *
 * @param fetchSize the fetch size to use retrieving the results
 * @param parameterValues the parameter values to use (or null if none).
 *
 * @return a forward-only {@link ScrollableResults}
 */
public ScrollableResults getForwardOnlyCursor(int fetchSize, Map<String, Object> parameterValues) {
  Query query = createQuery();
  if (parameterValues != null) {
    query.setProperties(parameterValues);
  }
  return query.setFetchSize(fetchSize).scroll(ScrollMode.FORWARD_ONLY);
}

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

Query query = s.createQuery("from DataPoint dp order by dp.x asc");
s.setDefaultReadOnly( true );
ScrollableResults sr = query.scroll(ScrollMode.FORWARD_ONLY);
s.setDefaultReadOnly( false );
while ( sr.next() ) {

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

getSelectNewQuery( session ).setResultTransformer(Transformers.ALIAS_TO_ENTITY_MAP).scroll();
fail("'select new' together with a resulttransformer should result in error!");

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

s.setDefaultReadOnly( true );
assertTrue( s.isDefaultReadOnly() );
ScrollableResults sr = query.scroll(ScrollMode.FORWARD_ONLY);
assertFalse( query.isReadOnly() );
DataPoint dpLast = ( DataPoint ) s.get( DataPoint.class, dp.getId() );

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

s.setDefaultReadOnly( false );
assertFalse( s.isDefaultReadOnly() );
ScrollableResults sr = query.scroll(ScrollMode.FORWARD_ONLY);
assertFalse( s.isDefaultReadOnly() );
assertTrue( query.isReadOnly() );

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

.scroll(ScrollMode.FORWARD_ONLY);

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

Query query = s.createQuery("select f, f.integer from Foo f");
assertTrue( query.getReturnTypes().length==2 );
ScrollableResults iter = query.scroll();
assertTrue( iter.next() );
assertTrue( iter.scroll(1) );
query = s.createQuery("select f, f.integer from Foo f");
assertTrue( query.getReturnTypes().length==2 );
iter = query.scroll();
assertTrue( iter.next() );
assertTrue( iter.scroll(1) );

代码示例来源：origin: stackoverflow.com

Query query = session.createQuery(query);
query.setReadOnly(true);
// MIN_VALUE gives hint to JDBC driver to stream results
query.setFetchSize(Integer.MIN_VALUE);
ScrollableResults results = query.scroll(ScrollMode.FORWARD_ONLY);
// iterate over results
while (results.next()) {
  Object row = results.get();
  // process row then release reference
  // you may need to evict() as well
}
results.close();

代码示例来源：origin: com.github.cafdataprocessing/corepolicy-hibernate

@Override
public ScrollableResults scroll() {
  return query.scroll();
}

代码示例来源：origin: com.revolsys.open/com.revolsys.open.orm.hibernate

/**
 * Construct a new HibernateQueryPager.
 * 
 * @param query The Hibernate query.
 */
public HibernateQueryPager(final Query query) {
 this.query = query;
 final ScrollableResults scrollableResults = query.scroll();
 scrollableResults.last();
 this.numResults = scrollableResults.getRowNumber() + 1;
}

代码示例来源：origin: badqiu/rapid-framework

private static int queryTatalCountByScrollableResults(Query query) {
  ScrollableResults scrollableResults = query.scroll();
  scrollableResults.last();
  return scrollableResults.getRowNumber() + 1;
}

代码示例来源：origin: com.querydsl/querydsl-jpa

@Override
public CloseableIterator<T> iterate() {
  try {
    Query query = createQuery();
    ScrollableResults results = query.scroll(ScrollMode.FORWARD_ONLY);
    return new ScrollableResultsIterator<T>(results);
  } finally {
    reset();
  }
}

代码示例来源：origin: stackoverflow.com

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

代码示例来源：origin: stackoverflow.com

Query query = session.createQuery(query);
query.setReadOnly(true);
// MIN_VALUE gives hint to JDBC driver to stream results
query.setFetchSize(Integer.MIN_VALUE);
ScrollableResults results = query.scroll(ScrollMode.FORWARD_ONLY);
// iterate over results
while (results.next()) {
  Object row = results.get();
  // process row then release reference
  // you may need to evict() as well
}
results.close();

代码示例来源：origin: stackoverflow.com

Query query = session.createQuery(query);
query.setReadOnly(true);
query.setFetchSize(Integer.MIN_VALUE);
ScrollableResults results = query.scroll(ScrollMode.FORWARD_ONLY);
// iterate over results
while (results.next()) {
  Object row = results.get();
  // process row then release reference
  // you may need to evict() as well
}
results.close();

代码示例来源：origin: stackoverflow.com

Query query = session.createQuery(query);
query.setReadOnly(true);
query.setFetchSize(50);
ScrollableResults results = query.scroll(ScrollMode.FORWARD_ONLY);
// iterate over results
while (results.next()) {
  Object row = results.get();
  // process row then release reference
  // you may need to flush() as well
}
results.close();

代码示例来源：origin: com.mysema.querydsl/querydsl-jpa

@Test
public void Scroll() throws IOException{
  CloseableIterator<Cat> cats = new ScrollableResultsIterator<Cat>(query().from(cat)
      .createQuery(cat).scroll());
  assertTrue(cats.hasNext());
  while (cats.hasNext()) {
    assertNotNull(cats.next());
  }
  cats.close();
}

代码示例来源：origin: com.querydsl/querydsl-jpa

@Test
public void scroll() throws IOException {
  CloseableIterator<Cat> cats = new ScrollableResultsIterator<Cat>(query().from(cat)
      .select(cat).createQuery().scroll());
  assertTrue(cats.hasNext());
  while (cats.hasNext()) {
    assertNotNull(cats.next());
  }
  cats.close();
}

代码示例来源：origin: com.querydsl/querydsl-jpa

@Test
public void scrollTuple() throws IOException {
  CloseableIterator<Tuple> rows = new ScrollableResultsIterator<Tuple>(query()
      .from(cat)
      .select(cat.name, cat.birthdate).createQuery().scroll());
  assertTrue(rows.hasNext());
  while (rows.hasNext()) {
    Tuple row = rows.next();
    assertEquals(2, row.size());
  }
  rows.close();
}