Package org.aspectj.org.eclipse.jdt.internal.core.search.indexing

Klasse ReadWriteMonitor

java.lang.Object
org.aspectj.org.eclipse.jdt.internal.core.search.indexing.ReadWriteMonitor
public class ReadWriteMonitor extends Object
Monitor ensuring no more than one writer working concurrently. Multiple readers are allowed to perform simultaneously.

  • Konstruktorübersicht

    Konstruktoren
    Konstruktor
    Beschreibung
    ReadWriteMonitor()
     

  • Methodenübersicht

    Modifizierer und Typ
    Methode
    Beschreibung
    void
    enterRead()
    Concurrent reading is allowed Blocking only when already writing.
    void
    enterWrite()
    Only one writer at a time is allowed to perform Blocking only when already writing or reading.
    void
    exitRead()
    Only notify waiting writer(s) if last reader
    boolean
    exitReadEnterWrite()
    Atomic exitRead/enterWrite: Allows to keep monitor in between exit read and next enter write.
    void
    exitWrite()
    When writing is over, all readers and possible writers are granted permission to restart concurrently
    void
    exitWriteEnterRead()
    Atomic exitWrite/enterRead: Allows to keep monitor in between exit write and next enter read.
    String
    toString()
     

    Von Klasse geerbte Methoden java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

  • Konstruktordetails

    • ReadWriteMonitor

      public ReadWriteMonitor()

  • Methodendetails

    • enterRead

      public void enterRead()
      Concurrent reading is allowed Blocking only when already writing.

    • enterWrite

      public void enterWrite()
      Only one writer at a time is allowed to perform Blocking only when already writing or reading.

    • exitRead

      public void exitRead()
      Only notify waiting writer(s) if last reader

    • exitWrite

      public void exitWrite()
      When writing is over, all readers and possible writers are granted permission to restart concurrently

    • exitReadEnterWrite

      public boolean exitReadEnterWrite()
      Atomic exitRead/enterWrite: Allows to keep monitor in between exit read and next enter write. Use when writing changes is optional, otherwise call the individual methods. Returns false if multiple readers are accessing the index.

    • exitWriteEnterRead

      public void exitWriteEnterRead()
      Atomic exitWrite/enterRead: Allows to keep monitor in between exit write and next enter read. When writing is over, all readers are granted permissing to restart concurrently. This is the same as: 
       synchronized(monitor) {
   monitor.exitWrite();
   monitor.enterRead();
 }

    • toString

      public String toString()
      Setzt außer Kraft:
      toString in Klasse Object