scala.xml.persistent

# CachedFileStorage

#### class CachedFileStorage extends Thread with Logged

Mutable storage of immutable xml trees. Everything is kept in memory, with a thread periodically checking for changes and writing to file. To ensure atomicity, two files are used, filename1 and '$'+filename1. The implementation switches between the two, deleting the older one after a complete dump of the database has been written.

Attributes
  abstract
Source
  CachedFileStorage.scala

Linear Supertypes
Logged, Thread, Runnable, AnyRef, Any
Known Subclasses
SetStorage
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1. CachedFileStorage
2. Logged
3. Thread
4. Runnable
5. AnyRef
6. Any

Visibility

1. Public
2. All

### Instance Constructors

1. #### new CachedFileStorage (file1: File)

### Abstract Value Members

1. #### def += (e: Node): Unit

   adds a node, setting this.

   adds a node, setting this.dirty to true as a side effect

   Attributes
     abstract

2. #### def -= (e: Node): Unit

   removes a tree, setting this.

   removes a tree, setting this.dirty to true as a side effect

   Attributes
     abstract

3. #### def nodes : Iterator[Node]

   returns an iterator over the nodes in this storage

   returns an iterator over the nodes in this storage

   Attributes
     abstract

### Concrete Value Members

1. #### def != (arg0: AnyRef): Boolean

   Attributes
     final
   Definition Classes
     AnyRef

2. #### def != (arg0: Any): Boolean

   Test two objects for inequality.

   Test two objects for inequality.

   returns

     `true` if !(this == that), false otherwise.

   Attributes
     final
   Definition Classes
     Any

3. #### def ## (): Int

   Equivalent to `x.hashCode` except for boxed numeric types.

   Equivalent to `x.hashCode` except for boxed numeric types. For numerics, it returns a hash value which is consistent with value equality: if two value type instances compare as true, then ## will produce the same hash value for each of them.

   returns

     a hash value consistent with ==

   Attributes
     final
   Definition Classes
     AnyRef → Any

4. #### def == (arg0: AnyRef): Boolean

   Attributes
     final
   Definition Classes
     AnyRef

5. #### def == (arg0: Any): Boolean

   Test two objects for equality.

   Test two objects for equality.

   returns

     `true` if the receiver object is equivalent to the argument; `false` otherwise.

   Attributes
     final
   Definition Classes
     Any

6. #### def asInstanceOf [T0] : T0

   Cast the receiver object to be of type `T0`.

   Cast the receiver object to be of type `T0`.

   Note that the success of a cast at runtime is modulo Scala's erasure semantics. Therefore the expression `1.asInstanceOf[String]` will throw a `ClassCastException` at runtime, while the expression `List(1).asInstanceOf[List[String]]` will not. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the requested type.

   returns

     the receiver object.

   Attributes
     final
   Definition Classes
     Any

7. #### def checkAccess (): Unit

   Attributes
     final
   Definition Classes
     Thread

8. #### def clone (): AnyRef

   Create a copy of the receiver object.

   Create a copy of the receiver object.

   The default implementation of the `clone` method is platform dependent.

   returns

     a copy of the receiver object.

   Attributes
     protected[lang]
   Definition Classes
     Thread → AnyRef
   Annotations
     @throws()

9. #### var dirty : Boolean

   this storage modified since last modification check

   this storage modified since last modification check

   Attributes
     protected

10. #### def eq (arg0: AnyRef): Boolean

    Tests whether the argument (`arg0`) is a reference to the receiver object (`this`).

    Tests whether the argument (`arg0`) is a reference to the receiver object (`this`).

    The `eq` method implements an equivalence relation on non-null instances of `AnyRef`, and has three additional properties:

    - It is consistent: for any non-null instances `x` and `y` of type `AnyRef`, multiple invocations of `x.eq(y)` consistently returns `true` or consistently returns `false`.
    - For any non-null instance `x` of type `AnyRef`, `x.eq(null)` and `null.eq(x)` returns `false`.
    - `null.eq(null)` returns `true`.

    When overriding the `equals` or `hashCode` methods, it is important to ensure that their behavior is consistent with reference equality. Therefore, if two objects are references to each other (`o1 eq o2`), they should be equal to each other (`o1 == o2`) and they should hash to the same value (`o1.hashCode == o2.hashCode`).

    returns

      `true` if the argument is a reference to the receiver object; `false` otherwise.

    Attributes
      final
    Definition Classes
      AnyRef

11. #### def equals (arg0: Any): Boolean

    The equality method for reference types.

    The equality method for reference types. See equals in Any.

    returns

      `true` if the receiver object is equivalent to the argument; `false` otherwise.

    Definition Classes
      AnyRef → Any

12. #### def finalize (): Unit

    Called by the garbage collector on the receiver object when there are no more references to the object.

    Called by the garbage collector on the receiver object when there are no more references to the object.

    The details of when and if the `finalize` method is invoked, as well as the interaction between `finalize` and non-local returns and exceptions, are all platform dependent.

    Attributes
      protected[lang]
    Definition Classes
      AnyRef
    Annotations
      @throws()

13. #### def flush (): Unit

    forces writing of contents to the file, even if there has not been any update.

14. #### def getClass (): java.lang.Class[_]

    A representation that corresponds to the dynamic class of the receiver object.

    A representation that corresponds to the dynamic class of the receiver object.

    The nature of the representation is platform dependent.

    returns

      a representation that corresponds to the dynamic class of the receiver object.

    Attributes
      final
    Definition Classes
      AnyRef → Any

15. #### def getContextClassLoader (): ClassLoader

    Definition Classes
      Thread

16. #### def getId (): Long

    Definition Classes
      Thread

17. #### def getName (): String

    Attributes
      final
    Definition Classes
      Thread

18. #### def getPriority (): Int

    Attributes
      final
    Definition Classes
      Thread

19. #### def getStackTrace (): Array[StackTraceElement]

    Definition Classes
      Thread

20. #### def getState (): State

    Definition Classes
      Thread

21. #### def getThreadGroup (): ThreadGroup

    Attributes
      final
    Definition Classes
      Thread

22. #### def getUncaughtExceptionHandler (): UncaughtExceptionHandler

    Definition Classes
      Thread

23. #### def hashCode (): Int

    The hashCode method for reference types.

    The hashCode method for reference types. See hashCode in Any.

    returns

      the hash code value for this object.

    Definition Classes
      AnyRef → Any

24. #### def initialNodes : Iterator[Node]

    finds and loads the storage file.

    finds and loads the storage file. subclasses should call this method prior to any other, but only once, to obtain the initial sequence of nodes.

    Attributes
      protected

25. #### def interrupt (): Unit

    Definition Classes
      Thread

26. #### val interval : Int

    period between modification checks, in milliseconds

    period between modification checks, in milliseconds

    Attributes
      protected

27. #### def isAlive (): Boolean

    Attributes
      final
    Definition Classes
      Thread

28. #### def isDaemon (): Boolean

    Attributes
      final
    Definition Classes
      Thread

29. #### def isInstanceOf [T0] : Boolean

    Test whether the dynamic type of the receiver object is `T0`.

    Test whether the dynamic type of the receiver object is `T0`.

    Note that the result of the test is modulo Scala's erasure semantics. Therefore the expression `1.isInstanceOf[String]` will return `false`, while the expression `List(1).isInstanceOf[List[String]]` will return `true`. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the specified type.

    returns

      `true` if the receiver object is an instance of erasure of type `T0`; `false` otherwise.

    Attributes
      final
    Definition Classes
      Any

30. #### def isInterrupted (): Boolean

    Definition Classes
      Thread

31. #### def join (): Unit

    Attributes
      final
    Definition Classes
      Thread
    Annotations
      @throws()

32. #### def join (arg0: Long, arg1: Int): Unit

    Attributes
      final
    Definition Classes
      Thread
    Annotations
      @throws()

33. #### def join (arg0: Long): Unit

    Attributes
      final
    Definition Classes
      Thread
    Annotations
      @throws()

34. #### def log (msg: String): Unit

    This method should log the message given as argument somewhere as a side-effect.

    This method should log the message given as argument somewhere as a side-effect.

    msg

      message to be logged

    Definition Classes
      Logged

35. #### def ne (arg0: AnyRef): Boolean

    Equivalent to `!(this eq that)`.

    Equivalent to `!(this eq that)`.

    returns

      `true` if the argument is not a reference to the receiver object; `false` otherwise.

    Attributes
      final
    Definition Classes
      AnyRef

36. #### def notify (): Unit

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Attributes
      final
    Definition Classes
      AnyRef

37. #### def notifyAll (): Unit

    Wakes up all threads that are waiting on the receiver object's monitor.

    Wakes up all threads that are waiting on the receiver object's monitor.

    Attributes
      final
    Definition Classes
      AnyRef

38. #### def run (): Unit

    run method of the thread.

    run method of the thread. remember to use start() to start a thread, not run.

    Definition Classes
      CachedFileStorage → Thread → Runnable

39. #### def setContextClassLoader (arg0: ClassLoader): Unit

    Definition Classes
      Thread

40. #### def setDaemon (arg0: Boolean): Unit

    Attributes
      final
    Definition Classes
      Thread

41. #### def setName (arg0: String): Unit

    Attributes
      final
    Definition Classes
      Thread

42. #### def setPriority (arg0: Int): Unit

    Attributes
      final
    Definition Classes
      Thread

43. #### def setUncaughtExceptionHandler (arg0: UncaughtExceptionHandler): Unit

    Definition Classes
      Thread

44. #### def start (): Unit

    Definition Classes
      Thread

45. #### def synchronized [T0] (arg0: ⇒ T0): T0

    Attributes
      final
    Definition Classes
      AnyRef

46. #### def toString (): String

    Creates a String representation of this object.

    Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.

    returns

      a String representation of the object.

    Definition Classes
      Thread → AnyRef → Any

47. #### def wait (): Unit

    Attributes
      final
    Definition Classes
      AnyRef
    Annotations
      @throws()

48. #### def wait (arg0: Long, arg1: Int): Unit

    Attributes
      final
    Definition Classes
      AnyRef
    Annotations
      @throws()

49. #### def wait (arg0: Long): Unit

    Attributes
      final
    Definition Classes
      AnyRef
    Annotations
      @throws()

### Deprecated Value Members

1. #### def countStackFrames (): Int

   Definition Classes
     Thread
   Annotations
     @Deprecated @deprecated
   Deprecated

     see corresponding Javadoc for more information.

2. #### def destroy (): Unit

   Definition Classes
     Thread
   Annotations
     @Deprecated @deprecated
   Deprecated

     see corresponding Javadoc for more information.

3. #### def resume (): Unit

   Attributes
     final
   Definition Classes
     Thread
   Annotations
     @Deprecated @deprecated
   Deprecated

     see corresponding Javadoc for more information.

4. #### def stop (arg0: Throwable): Unit

   Attributes
     final
   Definition Classes
     Thread
   Annotations
     @Deprecated @deprecated
   Deprecated

     see corresponding Javadoc for more information.

5. #### def stop (): Unit

   Attributes
     final
   Definition Classes
     Thread
   Annotations
     @Deprecated @deprecated
   Deprecated

     see corresponding Javadoc for more information.

6. #### def suspend (): Unit

   Attributes
     final
   Definition Classes
     Thread
   Annotations
     @Deprecated @deprecated
   Deprecated

     see corresponding Javadoc for more information.

### Inherited from Logged

### Inherited from Thread

### Inherited from Runnable

### Inherited from AnyRef

### Inherited from Any