net.liftweb.jpa

RequestVarEM

trait RequestVarEM extends ScalaEntityManager with ScalaEMFactory

This trait provides specific functionality for the Lift web framework by using a Lift RequestVar to hold the underlying EM. This allows you to use a singleton for EM access. You must mix in some other class to provide the actual ScalaEMFactory functionality. Example usage would be:

<code> object Model extends LocalEMF("test") with RequestVarEM </code>

linear super types: ScalaEMFactory, ScalaEntityManager, AnyRef, Any
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  1. RequestVarEM
  2. ScalaEMFactory
  3. ScalaEntityManager
  4. AnyRef
  5. Any
Visibility
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Impl.
  1. Concrete
  2. Abstract

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 == (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
  7. 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
  8. 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
  9. def clear () : Unit

    definition classes: ScalaEntityManager
  10. 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
  11. def close () : Unit

    definition classes: ScalaEntityManager
  12. def closeEM (em: EntityManager) : Unit

    attributes: protected[jpa] abstract
    definition classes: ScalaEMFactory
  13. def contains (entity: AnyRef) : Boolean

    definition classes: ScalaEntityManager
  14. def createNamedQuery [A] (queryName: String) : ScalaQuery[A]

    definition classes: ScalaEntityManager
  15. def createNamedQuery [A] (queryName: String, params: (String, Any)*) : ScalaQuery[A]

    definition classes: ScalaEntityManager
  16. def createNativeQuery [A] (sqlString: String, resultSetMapping: String) : ScalaQuery[A]

    definition classes: ScalaEntityManager
  17. def createNativeQuery [A] (sqlString: String, clazz: Class[A]) : ScalaQuery[A]

    definition classes: ScalaEntityManager
  18. def createNativeQuery [A] (sqlString: String) : ScalaQuery[A]

    definition classes: ScalaEntityManager
  19. def createQuery [A] (queryString: String) : ScalaQuery[A]

    definition classes: ScalaEntityManager
  20. def em : EntityManager

    attributes: protected
    definition classes: RequestVarEM → ScalaEntityManager
  21. object emVar extends TransientRequestVar[EntityManager]

    Provides the request var that holds the underlying EntityManagerfor each request.

  22. 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
  23. 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
  24. val factory : RequestVarEM

    definition classes: RequestVarEM → ScalaEntityManager
  25. 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
  26. def find [A] (clazz: Class[A], id: Any) : Option[A]

    definition classes: ScalaEntityManager
  27. def findAll [A] (queryName: String, params: (String, Any)*) : Buffer[A]

    definition classes: ScalaEntityManager
  28. def flush () : Unit

    definition classes: ScalaEntityManager
  29. def getClass () : java.lang.Class[_]

    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
  30. def getDelegate () : AnyRef

    definition classes: ScalaEntityManager
  31. def getFlushMode () : FlushModeType

    definition classes: ScalaEntityManager
  32. def getReference [A] (clazz: Class[A], primaryKey: Any) : A

    definition classes: ScalaEntityManager
  33. def getTransaction () : EntityTransaction

    definition classes: ScalaEntityManager
  34. def getUnderlying : EntityManager

    Returns the current underlying EntityManager.

    Returns the current underlying EntityManager. Generally you shouldn't need to do this unless you're using some very advanced or propietary functionality on the EM.

    returns

    The underlying EM

  35. def getUnitName : String

    attributes: protected abstract
    definition classes: ScalaEMFactory
  36. 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
  37. 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
  38. def isOpen () : Boolean

    definition classes: ScalaEntityManager
  39. def joinTransaction () : Unit

    definition classes: ScalaEntityManager
  40. def lock (entity: AnyRef, lockMode: LockModeType) : Unit

    definition classes: ScalaEntityManager
  41. def merge [T] (entity: T) : T

    definition classes: ScalaEntityManager
  42. def mergeAndFlush [T] (entity: T) : T

    definition classes: ScalaEntityManager
  43. 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
  44. def newEM : ScalaEntityManager

    definition classes: ScalaEMFactory
  45. 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
  46. 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
  47. def openEM () : EntityManager

    attributes: protected abstract
    definition classes: ScalaEMFactory
  48. def persist (entity: AnyRef) : Unit

    definition classes: ScalaEntityManager
  49. def persistAndFlush (entity: AnyRef) : Unit

    definition classes: ScalaEntityManager
  50. def refresh (entity: AnyRef) : Unit

    definition classes: ScalaEntityManager
  51. def remove (entity: AnyRef) : Unit

    definition classes: ScalaEntityManager
  52. def removeAndFlush (entity: AnyRef) : Unit

    definition classes: ScalaEntityManager
  53. def setFlushMode (flushModeType: FlushModeType) : Unit

    definition classes: ScalaEntityManager
  54. def synchronized [T0] (arg0: T0) : T0

    attributes: final
    definition classes: AnyRef
  55. 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: AnyRef → Any
  56. def wait () : Unit

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

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

    attributes: final
    definition classes: AnyRef

Inherited from ScalaEMFactory

Inherited from ScalaEntityManager

Inherited from AnyRef

Inherited from Any