net.liftweb.util

BasicTypesHelpers

object BasicTypesHelpers extends BasicTypesHelpers with StringHelpers with ControlHelpers

This object adds functionality to Scala standard types.

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  1. BasicTypesHelpers
  2. ControlHelpers
  3. ClassHelpers
  4. StringHelpers
  5. BasicTypesHelpers
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Type Members

  1. class Boolean2 extends AnyRef

    This decorator class adds a ternary operator to a Boolean value

Value Members

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

    Definition Classes
    AnyRef
  2. final def !=(arg0: Any): Boolean

    Definition Classes
    Any
  3. final def ##(): Int

    Definition Classes
    AnyRef → Any
  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  5. final def ==(arg0: Any): Boolean

    Definition Classes
    Any
  6. object AsBoolean extends AnyRef

    A helpful Boolean extractor

  7. object AsDouble extends AnyRef

    A helpful Double extractor

  8. object AsInt extends AnyRef

    A helpful Int extractor

  9. object AsLong extends AnyRef

    A helpful Long extractor

  10. def ^[T](i: T*): List[T]

    This operator transforms its arguments into a List

    This operator transforms its arguments into a List

    returns

    the list of arguments passed as varargs

    Definition Classes
    ClassHelpers
  11. def asBoolean(in: String): Box[Boolean]

    A helper that will convert the String to a Boolean if it's t, true, yes, 1, f, false, no, or 0

    A helper that will convert the String to a Boolean if it's t, true, yes, 1, f, false, no, or 0

    Definition Classes
    BasicTypesHelpers
  12. def asDouble(in: String): Box[Double]

    Safely convert the specified String to a Double.

    Safely convert the specified String to a Double.

    Definition Classes
    BasicTypesHelpers
  13. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  14. def asInt(in: String): Box[Int]

    Safely convert the specified String to an Int.

    Safely convert the specified String to an Int.

    Definition Classes
    BasicTypesHelpers
  15. def asLong(in: Any): Box[Long]

    Convert any object to an "equivalent" Long depending on its value

    Convert any object to an "equivalent" Long depending on its value

    Definition Classes
    BasicTypesHelpers
  16. def asLong(in: String): Box[Long]

    Safely convert the specified String to a Long.

    Safely convert the specified String to a Long.

    Definition Classes
    BasicTypesHelpers
  17. def blankForNull(s: String): String

    Test for null and return either the given String if not null or the blank String.

    Test for null and return either the given String if not null or the blank String.

    Definition Classes
    StringHelpers
  18. implicit def boolean2(b: ⇒ Boolean): Boolean2

    Allows an implicit transform from a Boolean to a Boolean2, allowing expressions such as: (1 == 2) ? "a" | "b" (This expression will return "b")

    Allows an implicit transform from a Boolean to a Boolean2, allowing expressions such as: (1 == 2) ? "a" | "b" (This expression will return "b")

    b

    the predicate to be tested by the ternary operator.

    Definition Classes
    BasicTypesHelpers
  19. def callableMethod_?(meth: Method): Boolean

    returns

    true if the method is public and has no parameters

    Definition Classes
    ClassHelpers
  20. def camelify(name: String): String

    Turns a string of format "foo_bar" into camel case "FooBar"

    Turns a string of format "foo_bar" into camel case "FooBar"

    Functional code courtesy of Jamie Webb (j@jmawebb.cjb.net) 2006/11/28

    name

    the String to CamelCase

    returns

    the CamelCased string

    Definition Classes
    StringHelpers
  21. def camelifyMethod(name: String): String

    Turn a string of format "foo_bar" into camel case with the first letter in lower case: "fooBar" This function is especially used to camelCase method names.

    Turn a string of format "foo_bar" into camel case with the first letter in lower case: "fooBar" This function is especially used to camelCase method names.

    name

    the String to CamelCase

    returns

    the CamelCased string

    Definition Classes
    StringHelpers
  22. def capify(in: String): String

    Capitalize every "word" in the string.

    Capitalize every "word" in the string. A word is either separated by spaces or underscores.

    in

    string to capify

    returns

    the capified string

    Definition Classes
    StringHelpers
  23. def charSplit(what: String, sep: Char): List[String]

    Faster than roboSplit.

    Faster than roboSplit... this method splits Strings at a given character

    Definition Classes
    StringHelpers
  24. def classHasControllerMethod(clz: Class[_], name: String): Boolean

    Check that the method 'name' is callable for class 'clz'

    Check that the method 'name' is callable for class 'clz'

    clz

    the class supposed to own the method

    name

    name of the method to test

    returns

    true if the method exists on the class and is callable

    Definition Classes
    ClassHelpers
  25. def classHierarchy(in: Class[_]): List[Class[_]]

    Definition Classes
    ClassHelpers
  26. def clean(in: String): String

    Remove all the characters from a string exception a-z, A-Z, 0-9, and '_'

    Remove all the characters from a string exception a-z, A-Z, 0-9, and '_'

    returns

    the cleaned string and an empty string if the input is null

    Definition Classes
    StringHelpers
  27. def clone(): AnyRef

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()
  28. def commafy(what: String): String

    Add commas before the last 3 characters

    Add commas before the last 3 characters

    returns

    the string with commas

    Definition Classes
    StringHelpers
  29. def compareElem(left: Elem, right: Elem): Boolean

    Compare two Elems

    Compare two Elems

    Definition Classes
    BasicTypesHelpers
  30. def compareMetaData(left: List[MetaData], right: List[MetaData]): Boolean

    Compare the metadata of two attributes

    Compare the metadata of two attributes

    Definition Classes
    BasicTypesHelpers
  31. def compareNode(left: Node, right: Node): Boolean

    Comparse two XML nodes

    Comparse two XML nodes

    Definition Classes
    BasicTypesHelpers
  32. def compareXml(left: NodeSeq, right: NodeSeq): Boolean

    Compare two NodeSeq and return true if they are equal, even if attribute order of Elems is different

    Compare two NodeSeq and return true if they are equal, even if attribute order of Elems is different

    Definition Classes
    BasicTypesHelpers
  33. def containsClass[C](clz: Class[C], toMatch: List[Class[_]]): Boolean

    Is the clz an instance of (assignable from) any of the classes in the list

    Is the clz an instance of (assignable from) any of the classes in the list

    clz

    the class to test

    toMatch

    the list of classes to match against

    returns

    true if clz is assignable from any of the matching classes

    Definition Classes
    ClassHelpers
  34. def createInvoker[C <: AnyRef](name: String, on: C): Box[() ⇒ Box[Any]]

    Create a function (the 'invoker') which will trigger any public, parameterless method That function will throw the cause exception if the method can't be invoked

    Create a function (the 'invoker') which will trigger any public, parameterless method That function will throw the cause exception if the method can't be invoked

    on

    instance whose method must be invoked

    returns

    Empty if instance is null or Full(invoker)

    Definition Classes
    ClassHelpers
  35. def emptyForBlank(s: String): Box[String]

    Turn a String into a Box[String], with Empty for the blank string.

    Turn a String into a Box[String], with Empty for the blank string.

    A string containing only spaces is considered blank.

    returns

    Full(s.trim) if s is not null or blank, Empty otherwise

    Definition Classes
    StringHelpers
  36. def encJs(what: String): String

    Encode the string to be including in JavaScript, replacing '\' or '\\' or non-ASCII characters by their unicode value

    Encode the string to be including in JavaScript, replacing '\' or '\\' or non-ASCII characters by their unicode value

    returns

    the encoded string inserted into quotes

    Definition Classes
    StringHelpers
  37. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  38. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  39. def escChar(in: Char): String

    Create the unicode value of a character

    Create the unicode value of a character

    in

    character

    returns

    the unicode value as a string starting by \\u

    Definition Classes
    StringHelpers
  40. def finalize(): Unit

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()
  41. def findClass(where: List[(String, List[String])]): Box[Class[AnyRef]]

    Find a class given a list of possible names and corresponding packages, turning underscored names to CamelCase if necessary

    Find a class given a list of possible names and corresponding packages, turning underscored names to CamelCase if necessary

    returns

    a Box, either containing the found class or an Empty can.

    Definition Classes
    ClassHelpers
  42. def findClass(name: String, where: List[String]): Box[Class[AnyRef]]

    Find a class given its name and a list of packages, turning underscored names to CamelCase if necessary.

    Find a class given its name and a list of packages, turning underscored names to CamelCase if necessary.

    returns

    a Box, either containing the found class or an Empty can.

    Definition Classes
    ClassHelpers
  43. def findClass[C <: AnyRef](name: String, where: List[String], targetType: Class[C]): Box[Class[C]]

    Find a class given its name and a list of packages, turning underscored names to CamelCase if necessary.

    Find a class given its name and a list of packages, turning underscored names to CamelCase if necessary.

    returns

    a Box, either containing the found class or an Empty can.

    Definition Classes
    ClassHelpers
  44. def findClass(name: String, where: List[String], modifiers: List[(String) ⇒ String]): Box[Class[AnyRef]]

    General method to in find a class according to its name, a list of possible packages and a list of functions modifying the given name create a target name to look for (e.

    General method to in find a class according to its name, a list of possible packages and a list of functions modifying the given name create a target name to look for (e.g: 'name' is hello_world and the target name may be 'HelloWorld').

    returns

    a Box, either containing the found class or an Empty can.

    Definition Classes
    ClassHelpers
  45. def findClass[C <: AnyRef](name: String, where: List[String], modifiers: List[(String) ⇒ String], targetType: Class[C]): Box[Class[C]]

    General method to in find a class according to its name, a list of possible packages, a list of functions modifying the given name create a target name to look for (e.

    General method to in find a class according to its name, a list of possible packages, a list of functions modifying the given name create a target name to look for (e.g: 'name' is hello_world and the target name may be 'HelloWorld').

    returns

    a Box, either containing the found class or an Empty can.

    Definition Classes
    ClassHelpers
  46. def findType[C <: AnyRef](where: List[(String, List[String])])(implicit m: Manifest[C]): Box[Class[C]]

    Find a class given its type, a list of possible names and corresponding packages, turning underscored names to CamelCase if necessary

    Find a class given its type, a list of possible names and corresponding packages, turning underscored names to CamelCase if necessary

    returns

    a Box, either containing the found class or an Empty can.

    Definition Classes
    ClassHelpers
  47. def findType[C <: AnyRef](name: String, where: List[String])(implicit m: Manifest[C]): Box[Class[C]]

    Find a class given its type, its name and a list of packages, turning underscored names to CamelCase if necessary.

    Find a class given its type, its name and a list of packages, turning underscored names to CamelCase if necessary.

    returns

    a Box, either containing the found class or an Empty can.

    Definition Classes
    ClassHelpers
  48. def findType[C <: AnyRef](name: String, where: List[String], modifiers: List[(String) ⇒ String])(implicit m: Manifest[C]): Box[Class[C]]

    General method to in find a class according to its type, its name, a list of possible packages and a list of functions modifying the given name create a target name to look for (e.

    General method to in find a class according to its type, its name, a list of possible packages and a list of functions modifying the given name create a target name to look for (e.g: 'name' is hello_world and the target name may be 'HelloWorld').

    returns

    a Box, either containing the found class or an Empty can.

    Definition Classes
    ClassHelpers
  49. final def getClass(): java.lang.Class[_]

    Definition Classes
    AnyRef → Any
  50. def hashCode(): Int

    Definition Classes
    AnyRef → Any
  51. def instantiate[C](clz: Class[C]): Box[C]

    Create a new instance of a class

    Create a new instance of a class

    returns

    a Full can with the instance or a Failure if the instance can't be created

    Definition Classes
    ClassHelpers
  52. def invokeControllerMethod(clz: Class[_], meth: String): Any

    Invoke a controller method (parameterless, public) on a class

    Invoke a controller method (parameterless, public) on a class

    clz

    the class owning the method

    returns

    the result of the method invocation or throws the root exception causing an error

    Definition Classes
    ClassHelpers
  53. def invokeMethod[C](clz: Class[C], inst: AnyRef, meth: String, params: Array[AnyRef], ptypes: Array[Class[_]]): Box[Any]

    Invoke the given method for the given class, with some parameters and their types Tries the method name, then the method as a CamelCased name and the method as a camelCased name The class is not instanciated if the method is static, otherwise the passed instance is used

    Invoke the given method for the given class, with some parameters and their types Tries the method name, then the method as a CamelCased name and the method as a camelCased name The class is not instanciated if the method is static, otherwise the passed instance is used

    clz

    class whose method should be invoked

    inst

    instance of the class who method should be invoked, if the method is not static

    meth

    method to invoke

    params

    parameters to pass to the method

    ptypes

    list of types of the parameters

    returns

    a Box containing the value returned by the method

    Definition Classes
    ClassHelpers
  54. def invokeMethod[C](clz: Class[C], inst: AnyRef, meth: String, params: Array[AnyRef]): Box[Any]

    Invoke the given method for the given class, with some parameters.

    Invoke the given method for the given class, with some parameters. Tries the method name, then the method as a CamelCased name and the method as a camelCased name The class is not instanciated if the method is static, otherwise the passed instance is used

    clz

    class whose method should be invoked

    inst

    instance of the class who method should be invoked, if the method is not static

    meth

    method to invoke

    params

    parameters to pass to the method

    returns

    a Box containing the value returned by the method

    Definition Classes
    ClassHelpers
  55. def invokeMethod[C](clz: Class[C], inst: AnyRef, meth: String): Box[Any]

    Invoke the given method for the given class, with no params.

    Invoke the given method for the given class, with no params. The class is not instanciated if the method is static, otherwise the passed instance is used

    clz

    class whose method should be invoked

    inst

    instance of the class who method should be invoked, if the method is not static

    meth

    method to invoke

    returns

    a Box containing the value returned by the method

    Definition Classes
    ClassHelpers
  56. def isEq(a: Array[Byte], b: Array[Byte]): Boolean

    Compare two arrays of Byte for byte equality.

    Compare two arrays of Byte for byte equality.

    returns

    true if two Byte arrays contain the same bytes

    Definition Classes
    BasicTypesHelpers
  57. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  58. def listFromListAndString(lst: List[String], s: String): List[String]

    Creates a List of Strings from a List[String] and a String

    Creates a List of Strings from a List[String] and a String

    Definition Classes
    StringHelpers
  59. def listFromStrings(s1: String, s2: String): List[String]

    Creates a List of Strings from two Strings

    Creates a List of Strings from two Strings

    Definition Classes
    StringHelpers
  60. implicit def listStringToSuper(in: List[String]): SuperListString

    returns

    a SuperString with more available methods such as roboSplit or commafy

    Definition Classes
    StringHelpers
  61. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  62. implicit def nodeSeqToOptionString(in: NodeSeq): Box[String]

    returns

    an Empty can if the node seq is empty and a full can with the NodeSeq text otherwise

    Definition Classes
    StringHelpers
  63. def notEq(a: Array[Byte], b: Array[Byte]): Boolean

    Compare two arrays of Byte for byte equality.

    Compare two arrays of Byte for byte equality.

    returns

    true if two Byte arrays don't contain the same bytes

    Definition Classes
    BasicTypesHelpers
  64. final def notify(): Unit

    Definition Classes
    AnyRef
  65. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  66. def parseNumber(tin: String): Long

    Parse a string and return the Long value of that string.

    Parse a string and return the Long value of that string.

    The string can start with '-' if it is a negative number or '+' for a positive number

    returns

    the Long value of the input String

    Definition Classes
    StringHelpers
  67. implicit def pfToGuardable[A](in: PartialFunction[A, _]): PartialFunctionWrapper[A]

    promote a partial function such that we can invoke the guard method to wrap the guarded partial function with a guard

    promote a partial function such that we can invoke the guard method to wrap the guarded partial function with a guard

    Definition Classes
    BasicTypesHelpers
  68. def processString(msg: String, subst: Map[String, String]): String

    Replaces the value found in a string surrounded by <%= .

    Replaces the value found in a string surrounded by <%= ... %> by a replacement according to the value found in the subst Map.

    Throws an exception if no correspondance can be found.

    msg

    string where replacements should be done

    subst

    map of [regular expression with groups, replacement]

    Definition Classes
    StringHelpers
  69. def randomString(size: Int): String

    Create a random string of a given size.

    Create a random string of a given size. 5 bits of randomness per character

    size

    size of the string to create. Must be a positive integer.

    returns

    the generated string

    Definition Classes
    StringHelpers
  70. def roboSplit(what: String, sep: String): List[String]

    Split a string according to a separator

    Split a string according to a separator

    sep

    a regexp to use with the String::split method

    returns

    a list of trimmed parts whose length is > 0

    Definition Classes
    StringHelpers
  71. def snakify(name: String): String

    Turn a string of format "FooBar" into snake case "foo_bar"

    Turn a string of format "FooBar" into snake case "foo_bar"

    Note: snakify is not reversible, ie. in general the following will _not_ be true:

    s == camelify(snakify(s))

    returns

    the underscored string

    Definition Classes
    StringHelpers
  72. def splitAt(what: String, sep: String): List[(String, String)]

    Split a string in 2 parts at the first place where a separator is found

    Split a string in 2 parts at the first place where a separator is found

    returns

    a List containing a pair of the 2 trimmed parts

    Definition Classes
    StringHelpers
  73. def splitColonPair(in: String, first: String, second: String): (String, String)

    Split a string separated by a point or by a column in 2 parts.

    Split a string separated by a point or by a column in 2 parts. Uses default values if only one is found or if no parts are found

    in

    string to split

    first

    default value for the first part if no split can be done

    second

    default value for the second part if one or less parts can be found

    returns

    a pair containing the first and second parts

    Definition Classes
    StringHelpers
  74. def splitNameValuePairs(props: String): Map[String, String]

    Splits a string of the form <name1=value1, name2=value2, .

    Splits a string of the form <name1=value1, name2=value2, ... > and unquotes the quoted values. The result is a Map[String, String]

    Definition Classes
    StringHelpers
  75. implicit def stringToSuper(in: String): SuperString

    returns

    a SuperString with more available methods such as roboSplit or commafy

    Definition Classes
    StringHelpers
  76. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  77. def toBoolean(in: Any): Boolean

    Convert any object to an "equivalent" Boolean depending on its value

    Convert any object to an "equivalent" Boolean depending on its value

    Definition Classes
    BasicTypesHelpers
  78. def toByteArrayInputStream(in: InputStream): ByteArrayInputStream

    Convert any InputStream to a ByteArrayInputStream

    Convert any InputStream to a ByteArrayInputStream

    Definition Classes
    BasicTypesHelpers
  79. def toInt(in: Any): Int

    Convert any object to an "equivalent" Int depending on its value

    Convert any object to an "equivalent" Int depending on its value

    Definition Classes
    BasicTypesHelpers
  80. def toLong(in: Any): Long

    Convert any object to an "equivalent" Long depending on its value

    Convert any object to an "equivalent" Long depending on its value

    Definition Classes
    BasicTypesHelpers
  81. implicit def toOptiCons(expr: ⇒ Boolean): OptionalCons

    Implicit transformation from a Boolean expression to an OptionalCons object so that an element can be added to a list if the expression is true

    Implicit transformation from a Boolean expression to an OptionalCons object so that an element can be added to a list if the expression is true

    Definition Classes
    BasicTypesHelpers
  82. def toString(): String

    Definition Classes
    AnyRef → Any
  83. def tryo[T](ignore: Class[_])(f: ⇒ T): Box[T]

    Wraps a "try" block around the function f.

    Wraps a "try" block around the function f. Takes only one Class of exception to ignore

    ignore

    - a single exception classes to ignore. A thrown exception will be ignored if it is assignable from this class.

    f

    - the block of code to evaluate @return

    • Full(result of the evaluation of f) if f doesn't throw any exception
    • a Failure if f throws an exception
    • Empty if the exception class is in the ignore list
    Definition Classes
    ControlHelpers
  84. def tryo[T](ignore: List[Class[_]])(f: ⇒ T): Box[T]

    Wraps a "try" block around the function f

    Wraps a "try" block around the function f

    ignore

    - a list of exception classes to ignore. A thrown exception will be ignored if it is assignable from one of the exception classes in the list

    f

    - the block of code to evaluate @return

    • Full(result of the evaluation of f) if f doesn't throw any exception
    • a Failure if f throws an exception
    • Empty if the exception class is in the ignore list
    Definition Classes
    ControlHelpers
  85. def tryo[T](onError: (Throwable) ⇒ Unit)(f: ⇒ T): Box[T]

    Wraps a "try" block around the function f and trigger a callback function if an exception is thrown

    Wraps a "try" block around the function f and trigger a callback function if an exception is thrown

    onError

    - an optional callback function that will use the thrown exception as a parameter

    f

    - the block of code to evaluate @return

    • Full(result of the evaluation of f) if f doesn't throw any exception
    • a Failure if f throws an exception
    Definition Classes
    ControlHelpers
  86. def tryo[T](f: ⇒ T): Box[T]

    Wraps a "try" block around the function f

    Wraps a "try" block around the function f

    f

    - the block of code to evaluate @return

    • Full(result of the evaluation of f) if f doesn't throw any exception
    • a Failure if f throws an exception
    Definition Classes
    ControlHelpers
  87. def tryo[T](handler: PartialFunction[Throwable, T], f: ⇒ T): Box[T]

    Wraps a "try" block around the function f.

    Wraps a "try" block around the function f. If f throws an exception that is in the domain of the handler PF, the handler will be invoked on the exception. Otherwise the exception is wrapped into a Failure.

    handler

    - A partial function that handles exceptions

    f

    - the block of code to evaluate @return

    • Full(result of the evaluation of f) if f doesn't throw any exception
    • a Failure if f throws an exception
    Definition Classes
    ControlHelpers
    See also

    net.liftweb.common.Failure

  88. def tryo[T](ignore: List[Class[_]], onError: Box[(Throwable) ⇒ Unit])(f: ⇒ T): Box[T]

    Wraps a "try" block around the function f.

    Wraps a "try" block around the function f. If f throws an exception with its class in the 'ignore' list or if 'ignore' is null or an empty list, ignore the exception and return None.

    ignore

    - a list of exception classes to ignore. A thrown exception will be ignored if it is assignable from one of the exception classes in the list

    onError

    - an optional callback function that will use the thrown exception as a parameter

    f

    - the block of code to evaluate @return

    • Full(result of the evaluation of f) if f doesn't throw any exception
    • a Failure if f throws an exception
    • Empty if the exception class is in the ignore list
    Definition Classes
    ControlHelpers
  89. def unquote(str: String): String

    If str is surrounded by quotes it return the content between the quotes

    If str is surrounded by quotes it return the content between the quotes

    Definition Classes
    StringHelpers
  90. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()
  91. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()
  92. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()

Deprecated Value Members

  1. def camelCase(name: String): String

    Definition Classes
    ClassHelpers
    Annotations
    @deprecated
    Deprecated

    (Since version 2.3) Use StringHelpers.camelify

  2. def camelCaseMethod(name: String): String

    Definition Classes
    ClassHelpers
    Annotations
    @deprecated
    Deprecated

    (Since version 2.3) Use StringHelpers.camelifyMethod

  3. def emptyForNull(s: String): String

    Definition Classes
    StringHelpers
    Annotations
    @deprecated
    Deprecated

    (Since version 2.3) Use blankForNull instead

  4. def unCamelCase(name: String): String

    Definition Classes
    ClassHelpers
    Annotations
    @deprecated
    Deprecated

    (Since version 2.3) Use StringHelpers.snakify

Inherited from ControlHelpers

Inherited from ClassHelpers

Inherited from StringHelpers

Inherited from BasicTypesHelpers

Inherited from AnyRef

Inherited from Any