Lazy

A wrapper for lazy values which can be queried whether they are created.

This was created primarily for being able to close/clean up things which may or may not have been created.

e.g. instead of this:

lazy val someResource = ...

// we may not have had a 'someResource' yet, so trying to close() our object
// would instantiate and then 'close' the resource
def close() = someResource.close()

we'd have this:

private val someResource_ = Lazy { ... }
def someResource = someResource_.value

def close() = someResource_.close() // or perhaps someResource_.foreach(_.destroy)

Linear Supertypes

LazyLogging, AutoCloseable, AnyRef, Any

Instance Constructors

new Lazy(mkValue: ⇒ T)

Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
def +(other: String): String

Implicit information
This member is added by an implicit conversion from Lazy[T] to any2stringadd[Lazy[T]] performed by method any2stringadd in scala.Predef.
Definition Classes
any2stringadd
def ->[B](y: B): (Lazy[T], B)

Implicit information
This member is added by an implicit conversion from Lazy[T] to ArrowAssoc[Lazy[T]] performed by method ArrowAssoc in scala.Predef.
Definition Classes
ArrowAssoc
Annotations
@inline()
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
def close(): Unit

Definition Classes
Lazy → AutoCloseable
def created(): Boolean
def ensuring(cond: (Lazy[T]) ⇒ Boolean, msg: ⇒ Any): Lazy[T]

Implicit information
This member is added by an implicit conversion from Lazy[T] to Ensuring[Lazy[T]] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: (Lazy[T]) ⇒ Boolean): Lazy[T]

Implicit information
This member is added by an implicit conversion from Lazy[T] to Ensuring[Lazy[T]] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: Boolean, msg: ⇒ Any): Lazy[T]

Implicit information
This member is added by an implicit conversion from Lazy[T] to Ensuring[Lazy[T]] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: Boolean): Lazy[T]

Implicit information
This member is added by an implicit conversion from Lazy[T] to Ensuring[Lazy[T]] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
final def eq(arg0: AnyRef): Boolean

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

Definition Classes
AnyRef → Any
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
def fold[A](f: (T) ⇒ A): Option[A]
def foreach(f: (T) ⇒ Unit): Unit
def formatted(fmtstr: String): String

Implicit information
This member is added by an implicit conversion from Lazy[T] to StringFormat[Lazy[T]] performed by method StringFormat in scala.Predef.
Definition Classes
StringFormat
Annotations
@inline()
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
lazy val logger: Logger

Attributes
protected
Definition Classes
LazyLogging
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
lazy val value: T
final def wait(): Unit

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

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

Definition Classes
AnyRef
Annotations
@throws( ... )
def →[B](y: B): (Lazy[T], B)

Implicit information
This member is added by an implicit conversion from Lazy[T] to ArrowAssoc[Lazy[T]] performed by method ArrowAssoc in scala.Predef.
Definition Classes
ArrowAssoc

Related Docs: object Lazy | package io

final class Lazy[T] extends AutoCloseable with LazyLogging

Instance Constructors

new Lazy(mkValue: ⇒ T)

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

def +(other: String): String

def ->[B](y: B): (Lazy[T], B)

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

def close(): Unit

def created(): Boolean

def ensuring(cond: (Lazy[T]) ⇒ Boolean, msg: ⇒ Any): Lazy[T]

def ensuring(cond: (Lazy[T]) ⇒ Boolean): Lazy[T]

def ensuring(cond: Boolean, msg: ⇒ Any): Lazy[T]

def ensuring(cond: Boolean): Lazy[T]

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

def fold[A](f: (T) ⇒ A): Option[A]

def foreach(f: (T) ⇒ Unit): Unit

def formatted(fmtstr: String): String

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

lazy val logger: Logger

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

lazy val value: T

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

def →[B](y: B): (Lazy[T], B)

Inherited from LazyLogging

Inherited from AutoCloseable

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from Lazy[T] to any2stringadd[Lazy[T]]

Inherited by implicit conversion StringFormat from Lazy[T] to StringFormat[Lazy[T]]

Inherited by implicit conversion Ensuring from Lazy[T] to Ensuring[Lazy[T]]

Inherited by implicit conversion ArrowAssoc from Lazy[T] to ArrowAssoc[Lazy[T]]

Ungrouped