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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Inherited
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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.