本文整理汇总了Java中org.apache.cassandra.io.sstable.SSTableReader.getBloomFilter方法的典型用法代码示例。如果您正苦于以下问题：Java SSTableReader.getBloomFilter方法的具体用法？Java SSTableReader.getBloomFilter怎么用？Java SSTableReader.getBloomFilter使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.cassandra.io.sstable.SSTableReader的用法示例。
在下文中一共展示了SSTableReader.getBloomFilter方法的2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: maxPurgeableTimestamp
import org.apache.cassandra.io.sstable.SSTableReader; //导入方法依赖的package包/类
/**
* @return the largest timestamp before which it's okay to drop tombstones for the given partition;
* i.e., after the maxPurgeableTimestamp there may exist newer data that still needs to be suppressed
* in other sstables. This returns the minimum timestamp for any SSTable that contains this partition and is not
* participating in this compaction, or LONG.MAX_VALUE if no such SSTable exists.
*/
public long maxPurgeableTimestamp(DecoratedKey key)
{
List<SSTableReader> filteredSSTables = overlappingTree.search(key);
long min = Long.MAX_VALUE;
for (SSTableReader sstable : filteredSSTables)
{
// if we don't have bloom filter(bf_fp_chance=1.0 or filter file is missing),
// we check index file instead.
if (sstable.getBloomFilter() instanceof AlwaysPresentFilter && sstable.getPosition(key, SSTableReader.Operator.EQ, false) != null)
min = Math.min(min, sstable.getMinTimestamp());
else if (sstable.getBloomFilter().isPresent(key.getKey()))
min = Math.min(min, sstable.getMinTimestamp());
}
return min;
}
示例2: shouldPurge
import org.apache.cassandra.io.sstable.SSTableReader; //导入方法依赖的package包/类
/**
* @return true if it's okay to drop tombstones for the given row, i.e., if we know all the verisons of the row
* are included in the compaction set
*/
public boolean shouldPurge(DecoratedKey key, long maxDeletionTimestamp)
{
List<SSTableReader> filteredSSTables = overlappingTree.search(key);
for (SSTableReader sstable : filteredSSTables)
{
if (sstable.getMinTimestamp() <= maxDeletionTimestamp)
{
// if we don't have bloom filter(bf_fp_chance=1.0 or filter file is missing),
// we check index file instead.
if (sstable.getBloomFilter() instanceof AlwaysPresentFilter && sstable.getPosition(key, SSTableReader.Operator.EQ, false) != null)
return false;
else if (sstable.getBloomFilter().isPresent(key.key))
return false;
}
}
return true;
}