Lucene.Net.Index.IndexWriterConfig.SetIndexDeletionPolicy C# (CSharp) Method

IndexWriterConfig Class Documentation Usage Examples Of Lucene.Net.Index.IndexWriterConfig::SetIndexDeletionPolicy Mostrar archivo Open project: paulirwin/lucene.net

SetIndexDeletionPolicy() public method

Expert: allows an optional IndexDeletionPolicy implementation to be specified. You can use this to control when prior commits are deleted from the index. The default policy is KeepOnlyLastCommitDeletionPolicy which removes all prior commits as soon as a new commit is done (this matches behavior before 2.2). Creating your own policy can allow you to explicitly keep previous "point in time" commits alive in the index for some time, to allow readers to refresh to the new commit without having the old commit deleted out from under them. this is necessary on filesystems like NFS that do not support "delete on last close" semantics, which Lucene's "point in time" search normally relies on.

NOTE: the deletion policy cannot be null.

Only takes effect when IndexWriter is first created.

public SetIndexDeletionPolicy ( IndexDeletionPolicy deletionPolicy ) : IndexWriterConfig
deletionPolicy	IndexDeletionPolicy
return	IndexWriterConfig

        public IndexWriterConfig SetIndexDeletionPolicy(IndexDeletionPolicy deletionPolicy)
        {
            if (deletionPolicy == null)
            {
                throw new System.ArgumentException("indexDeletionPolicy must not be null");
            }
            this.delPolicy = deletionPolicy;
            return this;
        }

Usage Example

Ejemplo n.º 1

Mostrar archivo

Archivo: TestSnapshotDeletionPolicy.cs Proyecto: willCode2Surf/lucenenet

        protected internal virtual IndexWriterConfig GetConfig(Random random, IndexDeletionPolicy dp)
        {
            IndexWriterConfig conf = NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random));

            if (dp != null)
            {
                conf.SetIndexDeletionPolicy(dp);
            }
            return(conf);
        }

All Usage Examples Of Lucene.Net.Index.IndexWriterConfig::SetIndexDeletionPolicy

IndexWriterConfig

Clone

IndexWriterConfig

SetCodec

SetFlushPolicy

SetIndexCommit

SetIndexDeletionPolicy

SetIndexWriter

SetIndexerThreadPool

SetIndexingChain

SetInfoStream