global.namespace.scala.plus

Loan

final class Loan[A <: AutoCloseable] extends AnyRef

Encapsulates loaning an auto-closeable resource to a function.

Usage example:

new Loan(new PrintWriter(new FileOutputStream("hello-world.txt"))) { w: PrintWriter => w.println("Hello world!") }

In this example, w.close() is guaranteed to get called even if the to-function terminates with a Throwable.

In general, if the to-function throws a throwable t1 and the AutoCloseable.close() method throws another throwable t2, then the throwable t2 gets added to the throwable t1 using t1.addSuppressed(t2).

A

the type of the auto-closeable resource.

See also

The Java Language Specification: Java SE 7 Edition: 14.20.3.1 Basic try-with-resources

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Instance Constructors

  1. new Loan(resource: ⇒ A)

    resource

    the auto-closeable resource.

Value Members

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

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

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  3. final def ##(): Int

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  4. final def ==(arg0: AnyRef): Boolean

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  5. final def ==(arg0: Any): Boolean

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  6. def apply[B](fun: (A) ⇒ B): B

    Applies the loan pattern to the given function.

    Applies the loan pattern to the given function. This is similar to Java's basic try-with-resources statement, except that if closing the resource results in a fatal exception, then this exception gains priority and any original exception gets discarded.

    fun

    the function with the nullable resource parameter.

  7. final def asInstanceOf[T0]: T0

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  8. def clone(): AnyRef

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  9. final def eq(arg0: AnyRef): Boolean

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  10. def equals(arg0: Any): Boolean

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  11. def finalize(): Unit

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  12. final def getClass(): Class[_]

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  13. def hashCode(): Int

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  14. final def isInstanceOf[T0]: Boolean

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  15. final def ne(arg0: AnyRef): Boolean

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  16. final def notify(): Unit

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  17. final def notifyAll(): Unit

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

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  19. def toString(): String

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  20. final def wait(): Unit

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

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  22. final def wait(arg0: Long): Unit

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