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C# SegmentInfos.Clear方法代码示例

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


在下文中一共展示了SegmentInfos.Clear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: IndexWriter

        internal readonly Codec Codec; // for writing new segments

        /// <summary>
        /// Constructs a new IndexWriter per the settings given in <code>conf</code>.
        /// If you want to make "live" changes to this writer instance, use
        /// <seealso cref="#getConfig()"/>.
        ///
        /// <p>
        /// <b>NOTE:</b> after ths writer is created, the given configuration instance
        /// cannot be passed to another writer. If you intend to do so, you should
        /// <seealso cref="IndexWriterConfig#clone() clone"/> it beforehand.
        /// </summary>
        /// <param name="d">
        ///          the index directory. The index is either created or appended
        ///          according <code>conf.getOpenMode()</code>. </param>
        /// <param name="conf">
        ///          the configuration settings according to which IndexWriter should
        ///          be initialized. </param>
        /// <exception cref="IOException">
        ///           if the directory cannot be read/written to, or if it does not
        ///           exist and <code>conf.getOpenMode()</code> is
        ///           <code>OpenMode.APPEND</code> or if there is any other low-level
        ///           IO error </exception>
        public IndexWriter(Directory d, IndexWriterConfig conf)
        {
            /*if (!InstanceFieldsInitialized)
            {
                InitializeInstanceFields();
                InstanceFieldsInitialized = true;
            }*/
            readerPool = new ReaderPool(this);
            conf.SetIndexWriter(this); // prevent reuse by other instances
            Config_Renamed = new LiveIndexWriterConfig(conf);
            directory = d;
            analyzer = Config_Renamed.Analyzer;
            infoStream = Config_Renamed.InfoStream;
            mergePolicy = Config_Renamed.MergePolicy;
            mergePolicy.IndexWriter = this;
            mergeScheduler = Config_Renamed.MergeScheduler;
            Codec = Config_Renamed.Codec;

            BufferedUpdatesStream = new BufferedUpdatesStream(infoStream);
            PoolReaders = Config_Renamed.ReaderPooling;

            WriteLock = directory.MakeLock(WRITE_LOCK_NAME);

            if (!WriteLock.Obtain(Config_Renamed.WriteLockTimeout)) // obtain write lock
            {
                throw new LockObtainFailedException("Index locked for write: " + WriteLock);
            }

            bool success = false;
            try
            {
                OpenMode_e? mode = Config_Renamed.OpenMode;
                bool create;
                if (mode == OpenMode_e.CREATE)
                {
                    create = true;
                }
                else if (mode == OpenMode_e.APPEND)
                {
                    create = false;
                }
                else
                {
                    // CREATE_OR_APPEND - create only if an index does not exist
                    create = !DirectoryReader.IndexExists(directory);
                }

                // If index is too old, reading the segments will throw
                // IndexFormatTooOldException.
                segmentInfos = new SegmentInfos();

                bool initialIndexExists = true;

                if (create)
                {
                    // Try to read first.  this is to allow create
                    // against an index that's currently open for
                    // searching.  In this case we write the next
                    // segments_N file with no segments:
                    try
                    {
                        segmentInfos.Read(directory);
                        segmentInfos.Clear();
                    }
                    catch (IOException)
                    {
                        // Likely this means it's a fresh directory
                        initialIndexExists = false;
                    }

                    // Record that we have a change (zero out all
                    // segments) pending:
                    Changed();
                }
                else
                {
                    segmentInfos.Read(directory);
//.........这里部分代码省略.........
开发者ID:joyanta,项目名称:lucene.net,代码行数:101,代码来源:IndexWriter.cs


注:本文中的Lucene.Net.Index.SegmentInfos.Clear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。