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
linear super types: Logged, Thread, Runnable, AnyRef, Any
known subclasses: SetStorage
source: CachedFileStorage.scala
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  1. CachedFileStorage
  2. Logged
  3. Thread
  4. Runnable
  5. AnyRef
  6. Any
Visibility
  1. Public
  2. All
Impl.
  1. Concrete
  2. Abstract

Instance constructors

  1. new CachedFileStorage (file1: File)

Value Members

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

    attributes: final
    definition classes: AnyRef
  2. def != (arg0: Any) : Boolean

    o != arg0 is the same as !(o == (arg0)).

    o != arg0 is the same as !(o == (arg0)).

    arg0

    the object to compare against this object for dis-equality.

    returns

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

    attributes: final
    definition classes: Any
  3. def ## () : Int

    attributes: final
    definition classes: AnyRef → Any
  4. def $asInstanceOf [T0] () : T0

    attributes: final
    definition classes: AnyRef
  5. def $isInstanceOf [T0] () : Boolean

    attributes: final
    definition classes: AnyRef
  6. def += (e: Node) : Unit

    adds a node, setting this.

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

    attributes: abstract
  7. def -= (e: Node) : Unit

    removes a tree, setting this.

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

    attributes: abstract
  8. def == (arg0: AnyRef) : Boolean

    o == arg0 is the same as if (o eq null) arg0 eq null else o.equals(arg0).

    o == arg0 is the same as if (o eq null) arg0 eq null else o.equals(arg0).

    arg0

    the object to compare against this object for equality.

    returns

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

    attributes: final
    definition classes: AnyRef
  9. def == (arg0: Any) : Boolean

    o == arg0 is the same as o.equals(arg0).

    o == arg0 is the same as o.equals(arg0).

    arg0

    the object to compare against this object for equality.

    returns

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

    attributes: final
    definition classes: Any
  10. def asInstanceOf [T0] : T0

    This method is used to cast the receiver object to be of type T0.

    This method is used to 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 expression1.asInstanceOf[String] will throw a ClassCastException at runtime, while the expressionList(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 typed.

    returns

    the receiver object.

    attributes: final
    definition classes: Any
  11. def checkAccess () : Unit

    attributes: final
    definition classes: Thread
  12. def clone () : AnyRef

    This method creates and returns a copy of the receiver object.

    This method creates and returns 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
    definition classes: AnyRef
  13. def countStackFrames () : Int

    definition classes: Thread
      deprecated:
    1. see corresponding Javadoc for more information.

  14. def destroy () : Unit

    definition classes: Thread
      deprecated:
    1. see corresponding Javadoc for more information.

  15. var dirty : Boolean

    this storage modified since last modification check

    this storage modified since last modification check

    attributes: protected
  16. def eq (arg0: AnyRef) : Boolean

    This method is used to test whether the argument (arg0) is a reference to the receiver object (this).

    This method is used to test whether the argument (arg0) is a reference to the receiver object (this).

    The eq method implements an [http://en.wikipedia.org/wiki/Equivalence_relation equivalence relation] on non-null instances of AnyRef: * It is reflexive: for any non-null instance x of type AnyRef, x.eq(x) returns true. * It is symmetric: for any non-null instances x and y of type AnyRef, x.eq(y) returns true if and only if y.eq(x) returns true. * It is transitive: for any non-null instances x, y, and z of type AnyRef if x.eq(y) returns true and y.eq(z) returns true, then x.eq(z) returns true.

    Additionally, the eq method has three other 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).

    arg0

    the object to compare against this object for reference equality.

    returns

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

    attributes: final
    definition classes: AnyRef
  17. def equals (arg0: Any) : Boolean

    This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence.

    This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence.

    The default implementations of this method is an [http://en.wikipedia.org/wiki/Equivalence_relation equivalence relation]: * It is reflexive: for any instance x of type Any, x.equals(x) should return true. * It is symmetric: for any instances x and y of type Any, x.equals(y) should return true if and only if y.equals(x) returns true. * It is transitive: for any instances x, y, and z of type AnyRef if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.

    If you override this method, you should verify that your implementation remains an equivalence relation. Additionally, when overriding this method it is often necessary to override hashCode to ensure that objects that are "equal" (o1.equals(o2) returns true) hash to the same scala.Int (o1.hashCode.equals(o2.hashCode)).

    arg0

    the object to compare against this object for equality.

    returns

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

    definition classes: AnyRef → Any
  18. def finalize () : Unit

    This method is called by the garbage collector on the receiver object when garbage collection determines that there are no more references to the object.

    This method is called by the garbage collector on the receiver object when garbage collection determines that there are no more references to the object.

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

    attributes: protected
    definition classes: AnyRef
  19. def flush : Unit

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

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

  20. def getClass () : java.lang.Class[_ <: java.lang.Object]

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

    Returns 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
  21. def getContextClassLoader () : ClassLoader

    definition classes: Thread
  22. def getId () : Long

    definition classes: Thread
  23. def getName () : String

    attributes: final
    definition classes: Thread
  24. def getPriority () : Int

    attributes: final
    definition classes: Thread
  25. def getStackTrace () : Array[StackTraceElement]

    definition classes: Thread
  26. def getState () : State

    definition classes: Thread
  27. def getThreadGroup () : ThreadGroup

    attributes: final
    definition classes: Thread
  28. def getUncaughtExceptionHandler () : UncaughtExceptionHandler

    definition classes: Thread
  29. def hashCode () : Int

    Returns a hash code value for the object.

    Returns a hash code value for the object.

    The default hashing algorithm is platform dependent.

    Note that it is allowed for two objects to have identical hash codes (o1.hashCode.equals(o2.hashCode)) yet not be equal (o1.equals(o2) returns false). A degenerate implementation could always return 0. However, it is required that if two objects are equal (o1.equals(o2) returns true) that they have identical hash codes (o1.hashCode.equals(o2.hashCode)). Therefore, when overriding this method, be sure to verify that the behavior is consistent with the equals method.

    returns

    the hash code value for the object.

    definition classes: AnyRef → Any
  30. 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
  31. def interrupt () : Unit

    definition classes: Thread
  32. val interval : Int

    period between modification checks, in milliseconds

    period between modification checks, in milliseconds

    attributes: protected
  33. def isAlive () : Boolean

    attributes: final
    definition classes: Thread
  34. def isDaemon () : Boolean

    attributes: final
    definition classes: Thread
  35. def isInstanceOf [T0] : Boolean

    This method is used to test whether the dynamic type of the receiver object is T0.

    This method is used to test whether the dynamic type of the receiver object is T0.

    Note that the test result of the test is modulo Scala's erasure semantics. Therefore the expression1.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 requested typed.

    returns

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

    attributes: final
    definition classes: Any
  36. def isInterrupted () : Boolean

    definition classes: Thread
  37. def join () : Unit

    attributes: final
    definition classes: Thread
  38. def join (arg0: Long, arg1: Int) : Unit

    attributes: final
    definition classes: Thread
  39. def join (arg0: Long) : Unit

    attributes: final
    definition classes: Thread
  40. 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

    ...

    definition classes: Logged
  41. def ne (arg0: AnyRef) : Boolean

    o.ne(arg0) is the same as !(o.eq(arg0)).

    o.ne(arg0) is the same as !(o.eq(arg0)).

    arg0

    the object to compare against this object for reference dis-equality.

    returns

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

    attributes: final
    definition classes: AnyRef
  42. def nodes : Iterator[Node]

    returns an iterator over the nodes in this storage

    returns an iterator over the nodes in this storage

    attributes: abstract
  43. 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
  44. 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
  45. def resume () : Unit

    attributes: final
    definition classes: Thread
      deprecated:
    1. see corresponding Javadoc for more information.

  46. 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
  47. def setContextClassLoader (arg0: ClassLoader) : Unit

    definition classes: Thread
  48. def setDaemon (arg0: Boolean) : Unit

    attributes: final
    definition classes: Thread
  49. def setName (arg0: String) : Unit

    attributes: final
    definition classes: Thread
  50. def setPriority (arg0: Int) : Unit

    attributes: final
    definition classes: Thread
  51. def setUncaughtExceptionHandler (arg0: UncaughtExceptionHandler) : Unit

    definition classes: Thread
  52. def start () : Unit

    definition classes: Thread
  53. def stop (arg0: Throwable) : Unit

    attributes: final
    definition classes: Thread
      deprecated:
    1. see corresponding Javadoc for more information.

  54. def stop () : Unit

    attributes: final
    definition classes: Thread
      deprecated:
    1. see corresponding Javadoc for more information.

  55. def suspend () : Unit

    attributes: final
    definition classes: Thread
      deprecated:
    1. see corresponding Javadoc for more information.

  56. def synchronized [T0] (arg0: T0) : T0

    attributes: final
    definition classes: AnyRef
  57. def toString () : String

    Returns a string representation of the object.

    Returns a string representation of the object.

    The default representation is platform dependent.

    returns

    a string representation of the object.

    definition classes: Thread → AnyRef → Any
  58. def wait () : Unit

    attributes: final
    definition classes: AnyRef
  59. def wait (arg0: Long, arg1: Int) : Unit

    attributes: final
    definition classes: AnyRef
  60. def wait (arg0: Long) : Unit

    attributes: final
    definition classes: AnyRef

Inherited from Logged

Inherited from Thread

Inherited from Runnable

Inherited from AnyRef

Inherited from Any