C# (CSharp) Lucene.Net.Index IndexCommit.Delete примеры использования

Delete() публичный абстрактный Метод

Delete this commit point. This only applies when using the commit point in the context of IndexWriter's IndexDeletionPolicy.

Upon calling this, the writer is notified that this commit point should be deleted.

Decision that a commit-point should be deleted is taken by the IndexDeletionPolicy in effect and therefore this should only be called by its IndexDeletionPolicy.OnInit(System.Collections.IList) or IndexDeletionPolicy.OnCommit(System.Collections.IList) methods.

public abstract Delete ( ) : void
Результат	void

Пример #1

            public virtual void  OnInit(System.Collections.IList commits)
            {
                for (System.Collections.IEnumerator iterator = commits.GetEnumerator(); iterator.MoveNext();)
                {
                    IndexCommit commit = (IndexCommit)iterator.Current;
                    System.Collections.Generic.IDictionary <string, string> userData = commit.GetUserData();
                    if (userData.Count > 0)
                    {
                        // Label for a commit point is "Records 1-30"
                        // This code reads the last id ("30" in this example) and deletes it
                        // if it is after the desired rollback point
                        System.String x       = (System.String)userData["index"];
                        System.String lastVal = x.Substring(x.LastIndexOf("-") + 1);
                        int           last    = System.Int32.Parse(lastVal);
                        if (last > rollbackPoint)
                        {
                            /*
                             * System.out.print("\tRolling back commit point:" +
                             * " UserData="+commit.getUserData() +")  ("+(commits.size()-1)+" commit points left) files=");
                             * Collection files = commit.getFileNames();
                             * for (Iterator iterator2 = files.iterator(); iterator2.hasNext();) {
                             * System.out.print(" "+iterator2.next());
                             * }
                             * System.out.println();
                             */

                            commit.Delete();
                        }
                    }
                }
            }

Пример #2

 public override void Delete()
 {
     lock (outerInstance)
     {
         // Suppress the delete request if this commit point is
         // currently snapshotted.
         if (!outerInstance.m_refCounts.ContainsKey(m_cp.Generation))
         {
             m_cp.Delete();
         }
     }
 }

Пример #3

 public override void  Delete()
 {
     lock (Enclosing_Instance)
     {
         // Suppress the delete request if this commit point is
         // our current snapshot.
         if (Enclosing_Instance.snapshot == null || !Enclosing_Instance.snapshot.Equals(GetSegmentsFileName()))
         {
             cp.Delete();
         }
     }
 }

Пример #4

 public virtual void  OnInit(System.Collections.IList commits)
 {
     Enclosing_Instance.VerifyCommitOrder(commits);
     numOnInit++;
     // On init, delete all commit points:
     System.Collections.IEnumerator it = commits.GetEnumerator();
     while (it.MoveNext())
     {
         IndexCommit commit = (IndexCommit)it.Current;
         commit.Delete();
         Assert.IsTrue(commit.IsDeleted());
     }
 }

Пример #5

Файл: SnapshotDeletionPolicy.cs Проект: ywscr/lucenenet

 public override void Delete()
 {
     UninterruptableMonitor.Enter(outerInstance);
     try
     {
         // Suppress the delete request if this commit point is
         // currently snapshotted.
         if (!outerInstance.m_refCounts.ContainsKey(m_cp.Generation))
         {
             m_cp.Delete();
         }
     }
     finally
     {
         UninterruptableMonitor.Exit(outerInstance);
     }
 }

Пример #6

            public virtual void  OnCommit(System.Collections.IList commits)
            {
                Enclosing_Instance.VerifyCommitOrder(commits);

                IndexCommit lastCommit = (IndexCommit)commits[commits.Count - 1];

                // Any commit older than expireTime should be deleted:
                double expireTime = dir.FileModified(lastCommit.GetSegmentsFileName()) / 1000.0 - expirationTimeSeconds;

                System.Collections.IEnumerator it = commits.GetEnumerator();

                while (it.MoveNext())
                {
                    IndexCommit commit  = (IndexCommit)it.Current;
                    double      modTime = dir.FileModified(commit.GetSegmentsFileName()) / 1000.0;
                    if (commit != lastCommit && modTime < expireTime)
                    {
                        commit.Delete();
                        numDelete += 1;
                    }
                }
            }