com.facebook.buck.util

Class ThrowingMemoizer<T,E extends Exception>

java.lang.Object

com.facebook.buck.util.ThrowingMemoizer<T,E>

public class ThrowingMemoizer<T,E extends Exception>
extends Object

Memoizes a value or an exception when computing it, supporting passing in a throwing supplier when getting the value, unlike MoreSuppliers.MemoizingSupplier.

Constructor Summary

Constructors

Constructor and Description
ThrowingMemoizer()

Method Summary

Modifier and Type	Method and Description
T	get(ThrowingSupplier<T,E> delegate, Class<E> exceptionClass) Get the value and memoize the result.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ThrowingMemoizer

public ThrowingMemoizer()

Method Detail

get

public T get(ThrowingSupplier<T,E> delegate,
             Class<E> exceptionClass)
      throws E extends Exception

Get the value and memoize the result. Constructs the value if it hasn't been memoized before, or if the previously memoized value has been collected.

Parameters:

delegate - delegate for constructing the value

Returns:

the value

Throws:

E extends Exception