play.db.jpa

QueryOn

trait QueryOn[T] extends AnyRef

provides a mini DSL for Model objects

Go to: companion

Inherits

  1. AnyRef
  2. Any

Type Members

  1. type M = Manifest[T]

Value Members

  1. def all(m: Manifest[T]): JPAQuery

    returns the wrapper object for all records

    returns the wrapper object for all records

    Go to: companion
  2. def count(q: String, ps: AnyRef*)(m: Manifest[T]): Long

    count using a query

    count using a query

    ps

    Array of params

    Go to: companion
  3. def count()(m: Manifest[T]): Long

    Go to: companion
  4. def create(name: String, ps: Params)(m: Manifest[T]): T

    creates record for the given type T

    creates record for the given type T

    name

    name

    ps

    play scoped parameters

    Go to: companion
  5. def delete(q: String, ps: AnyRef*)(m: Manifest[T]): Int

    deletes records based on thequery and parameters

    deletes records based on thequery and parameters

    q

    query

    ps

    array of parameters

    Go to: companion
  6. def deleteAll(m: Manifest[T]): Int

    deletes all records

    deletes all records

    Go to: companion
  7. 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 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 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
    Go to: companion
  8. def find(q: String, params: Map[String, Any])(m: Manifest[T]): ScalaQuery[T]

    generic finder method that can be used with parameter bindings

    generic finder method that can be used with parameter bindings

    q

    query

    params

    parameters for bindings

    returns

    ScalaQuery

    Go to: companion
  9. def find(q: String, ps: AnyRef*)(m: Manifest[T]): ScalaQuery[T]

    this is the most generic finder which is also chainable (ie fetch, all, first etc

    this is the most generic finder which is also chainable (ie fetch, all, first etc. can be called on the return type)

    q

    query

    ps

    parameters

    Go to: companion
  10. def findAll(m: Manifest[T]): List[T]

    return all records

    return all records

    Go to: companion
  11. def findBy(q: String, ps: AnyRef*)(m: Manifest[T]): java.util.List[_]

    find a record based on a query

    find a record based on a query

    q

    query

    ps

    Array of params

    Go to: companion
  12. def findById(id: Any)(m: Manifest[T]): T

    find records by Id

    find records by Id

    id

    id

    Go to: companion
  13. def findOneBy(q: String, ps: AnyRef*)(m: Manifest[T]): T

    find a specific record based on a certain criteria

    find a specific record based on a certain criteria

    q

    query

    ps

    array of params

    Go to: companion
  14. 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.

    definition classes: AnyRef ⇐ Any
    Go to: companion
  15. def toString(): String

    Returns a string representation of the object

    Returns a string representation of the object.

    The default representation is platform dependent.

    definition classes: AnyRef ⇐ Any
    Go to: companion