Package com.zfabrik.components.provider.util

Class LockingRevFile

  • All Implemented Interfaces:
    Lock
    public class LockingRevFile
extends java.lang.Object
implements Lock
    A file system lock with properties. This is used by component repository implementations to manage concurrency in update decisions of locally managed resources. The typical usage of this class is 
     LockingRevFile lrf = new LockingRevFile(f);
 lrf.open();
 try {
    // do some checking based on lrf.properties()
    // do whatever updates needed
    // update lrf.properties() as required
    // persist updates
    lrf.update();
 } finally {
   lrf.close();
 }
    Author:
    hb

    • Constructor Summary

      Constructors 
      Constructor Description
      LockingRevFile​(java.io.File file)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void close()  
      boolean exists()  
      void open()  
      java.util.Properties properties()  
      void update()  

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • LockingRevFile

        public LockingRevFile​(java.io.File file)

    • Method Detail

      • exists

        public boolean exists()

      • open

        public void open()
          throws java.io.IOException
        Specified by:
        open in interface Lock
        Throws:
        java.io.IOException

      • properties

        public java.util.Properties properties()
        Specified by:
        properties in interface Lock

      • update

        public void update()
            throws java.io.IOException
        Specified by:
        update in interface Lock
        Throws:
        java.io.IOException

      • close

        public void close()
           throws java.io.IOException
        Specified by:
        close in interface Lock
        Throws:
        java.io.IOException