本文整理汇总了Java中org.apache.cassandra.service.pager.QueryPagers类的典型用法代码示例。如果您正苦于以下问题：Java QueryPagers类的具体用法？Java QueryPagers怎么用？Java QueryPagers使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
QueryPagers类属于org.apache.cassandra.service.pager包，在下文中一共展示了QueryPagers类的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: executeInternalWithPaging
import org.apache.cassandra.service.pager.QueryPagers; //导入依赖的package包/类
public static UntypedResultSet executeInternalWithPaging(String query, int pageSize, Object... values)
{
try
{
ParsedStatement.Prepared prepared = prepareInternal(query);
if (!(prepared.statement instanceof SelectStatement))
throw new IllegalArgumentException("Only SELECTs can be paged");
SelectStatement select = (SelectStatement)prepared.statement;
QueryPager pager = QueryPagers.localPager(select.getPageableCommand(makeInternalOptions(prepared, values)));
return UntypedResultSet.create(select, pager, pageSize);
}
catch (RequestValidationException e)
{
throw new RuntimeException("Error validating query" + e);
}
}
示例2: indexRow
import org.apache.cassandra.service.pager.QueryPagers; //导入依赖的package包/类
/**
* @param key row to index
* @param cfs ColumnFamily to index row in
* @param idxNames columns to index, in comparator order
*/
public static void indexRow(DecoratedKey key, ColumnFamilyStore cfs, Set<String> idxNames)
{
if (logger.isDebugEnabled())
logger.debug("Indexing row {} ", cfs.metadata.getKeyValidator().getString(key.getKey()));
try (OpOrder.Group opGroup = cfs.keyspace.writeOrder.start())
{
Set<SecondaryIndex> indexes = cfs.indexManager.getIndexesByNames(idxNames);
Iterator<ColumnFamily> pager = QueryPagers.pageRowLocally(cfs, key.getKey(), DEFAULT_PAGE_SIZE);
while (pager.hasNext())
{
ColumnFamily cf = pager.next();
ColumnFamily cf2 = cf.cloneMeShallow();
for (Cell cell : cf)
{
if (cfs.indexManager.indexes(cell.name(), indexes))
cf2.addColumn(cell);
}
cfs.indexManager.indexRow(key.getKey(), cf2, opGroup);
}
}
}
示例3: indexRow
import org.apache.cassandra.service.pager.QueryPagers; //导入依赖的package包/类
/**
* @param key row to index
* @param cfs ColumnFamily to index row in
* @param idxNames columns to index, in comparator order
*/
public static void indexRow(DecoratedKey key, ColumnFamilyStore cfs, Set<String> idxNames)
{
if (logger.isDebugEnabled())
logger.debug("Indexing row {} ", cfs.metadata.getKeyValidator().getString(key.key));
try (OpOrder.Group opGroup = cfs.keyspace.writeOrder.start())
{
Set<SecondaryIndex> indexes = cfs.indexManager.getIndexesByNames(idxNames);
Iterator<ColumnFamily> pager = QueryPagers.pageRowLocally(cfs, key.key, DEFAULT_PAGE_SIZE);
while (pager.hasNext())
{
ColumnFamily cf = pager.next();
ColumnFamily cf2 = cf.cloneMeShallow();
for (Cell cell : cf)
{
if (cfs.indexManager.indexes(cell.name(), indexes))
cf2.addColumn(cell);
}
cfs.indexManager.indexRow(key.key, cf2, opGroup);
}
}
}
示例4: indexRow
import org.apache.cassandra.service.pager.QueryPagers; //导入依赖的package包/类
/**
* @param key row to index
* @param cfs ColumnFamily to index row in
* @param idxNames columns to index, in comparator order
*/
public static void indexRow(DecoratedKey key, ColumnFamilyStore cfs, Set<String> idxNames)
{
if (logger.isDebugEnabled())
logger.debug("Indexing row {} ", cfs.metadata.getKeyValidator().getString(key.key));
Collection<SecondaryIndex> indexes = cfs.indexManager.getIndexesByNames(idxNames);
switchLock.readLock().lock();
try
{
Iterator<ColumnFamily> pager = QueryPagers.pageRowLocally(cfs, key.key, DEFAULT_PAGE_SIZE);
while (pager.hasNext())
{
ColumnFamily cf = pager.next();
ColumnFamily cf2 = cf.cloneMeShallow();
for (Column column : cf)
{
if (cfs.indexManager.indexes(column.name(), indexes))
cf2.addColumn(column);
}
cfs.indexManager.indexRow(key.key, cf2);
}
}
finally
{
switchLock.readLock().unlock();
}
}
示例5: indexRow
import org.apache.cassandra.service.pager.QueryPagers; //导入依赖的package包/类
/**
* @param key row to index
* @param cfs ColumnFamily to index row in
* @param idxNames columns to index, in comparator order
*/
public static void indexRow(DecoratedKey key, ColumnFamilyStore cfs, Set<String> idxNames)
{
if (logger.isDebugEnabled())
logger.debug("Indexing row {} ", cfs.metadata.getKeyValidator().getString(key.key));
Collection<SecondaryIndex> indexes = cfs.indexManager.getIndexesByNames(idxNames);
switchLock.readLock().lock();
try
{
Iterator<ColumnFamily> pager = QueryPagers.pageRowLocally(cfs, key.key, DEFAULT_PAGE_SIZE);
while (pager.hasNext())
{
ColumnFamily cf = pager.next();
ColumnFamily cf2 = cf.cloneMeShallow();
for (Cell cell : cf)
{
if (cfs.indexManager.indexes(cell.name(), indexes))
cf2.addColumn(cell);
}
cfs.indexManager.indexRow(key.key, cf2);
}
}
finally
{
switchLock.readLock().unlock();
}
}