Cache.getUnchecked(K, Supplier), like get(K, Callable) but without the checked exception

Original issue created by 0xabadea on 2013-01-08 at 11:45 AM

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Since get() now only takes a Callable, get() must rethrow call()'s exception as an ExecutionException. But my implementation of call() does not throw a checked exception. The ExecutionException will never occur, yet I must catch it, making the code less elegant:

-----%<-----     private static BigDecimal getMaxValue(final int precision, final int decimals) {         String key = precision + “;” + decimals;         try {             return BIGEST_VALUE_CACHE.get(key, new Callable<BigDecimal>() {

            @Override
            public BigDecimal call() {
                return ...;
            }
        });
    } catch (ExecutionException e) {
        // Should never occur.
        throw new AssertionError(e);
    }
}

-----%<-----

Perhaps a new method be introduced, such as (preferably)

get(K, Supplier<? extends V valueLoader);

or

get(K, Function<K, ? extends V> valueLoader);

Yes, I know about CacheLoader and getUnchecked(), but that would require me to introduce a new class for the cache key, which I was trying to avoid.

[gissuebot]

Original comment posted by GuiSim on 2013-12-02 at 09:03 PM

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Has a decision been reached for this feature request? I am currently facing a situation where I’d need a getUnchecked with a valueLoader parameter.

[gissuebot]

Original comment posted by [e-mail] on 2013-03-12 at 06:57 PM

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Our next step is to review our existing callers of get(K, Callable) to see how many would noticeably benefit from a new getUnchecked(K, Supplier) method.

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Status: Research