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C# SegmentReader.NumDeletedDocs方法代码示例

本文整理汇总了C#中Lucene.Net.Index.SegmentReader.NumDeletedDocs方法的典型用法代码示例。如果您正苦于以下问题:C# SegmentReader.NumDeletedDocs方法的具体用法?C# SegmentReader.NumDeletedDocs怎么用?C# SegmentReader.NumDeletedDocs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Lucene.Net.Index.SegmentReader的用法示例。


在下文中一共展示了SegmentReader.NumDeletedDocs方法的1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C#代码示例。

示例1: CommitMergedDeletes

		/// <summary>Carefully merges deletes for the segments we just
		/// merged.  This is tricky because, although merging will
		/// clear all deletes (compacts the documents), new
		/// deletes may have been flushed to the segments since
		/// the merge was started.  This method "carries over"
		/// such new deletes onto the newly merged segment, and
		/// saves the resulting deletes file (incrementing the
		/// delete generation for merge.info).  If no deletes were
		/// flushed, no new deletes file is saved. 
		/// </summary>
		private void  CommitMergedDeletes(MergePolicy.OneMerge merge, SegmentReader mergeReader)
		{
			lock (this)
			{
				
				System.Diagnostics.Debug.Assert(TestPoint("startCommitMergeDeletes"));
				
				SegmentInfos sourceSegments = merge.segments;
				
				if (infoStream != null)
					Message("commitMergeDeletes " + merge.SegString(directory));
				
				// Carefully merge deletes that occurred after we
				// started merging:
				int docUpto = 0;
				int delCount = 0;
				
				for (int i = 0; i < sourceSegments.Count; i++)
				{
					SegmentInfo info = sourceSegments.Info(i);
					int docCount = info.docCount;
					SegmentReader previousReader = merge.readersClone[i];
					SegmentReader currentReader = merge.readers[i];
					if (previousReader.HasDeletions())
					{
						
						// There were deletes on this segment when the merge
						// started.  The merge has collapsed away those
						// deletes, but, if new deletes were flushed since
						// the merge started, we must now carefully keep any
						// newly flushed deletes but mapping them to the new
						// docIDs.
						
						if (currentReader.NumDeletedDocs() > previousReader.NumDeletedDocs())
						{
							// This means this segment has had new deletes
							// committed since we started the merge, so we
							// must merge them:
							for (int j = 0; j < docCount; j++)
							{
								if (previousReader.IsDeleted(j))
								{
									System.Diagnostics.Debug.Assert(currentReader.IsDeleted(j));
                                }
								else
								{
									if (currentReader.IsDeleted(j))
									{
										mergeReader.DoDelete(docUpto);
										delCount++;
									}
									docUpto++;
								}
							}
						}
						else
						{
							docUpto += docCount - previousReader.NumDeletedDocs();
						}
					}
					else if (currentReader.HasDeletions())
					{
						// This segment had no deletes before but now it
						// does:
						for (int j = 0; j < docCount; j++)
						{
							if (currentReader.IsDeleted(j))
							{
								mergeReader.DoDelete(docUpto);
								delCount++;
							}
							docUpto++;
						}
					}
					// No deletes before or after
					else
						docUpto += info.docCount;
				}
				
				System.Diagnostics.Debug.Assert(mergeReader.NumDeletedDocs() == delCount);
				
				mergeReader.hasChanges = delCount > 0;
			}
		}
开发者ID:Mpdreamz,项目名称:lucene.net,代码行数:94,代码来源:IndexWriter.cs


注:本文中的Lucene.Net.Index.SegmentReader.NumDeletedDocs方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。