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annotate src/fschmidt/util/java/FutureValue.java @ 68:00520880ad02

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add fschmidt source
author Franklin Schmidt <fschmidt@gmail.com>
date Sun, 05 Oct 2025 17:24:15 -0600
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1 package fschmidt.util.java;
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2
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3 import java.util.concurrent.Callable;
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4 import java.util.concurrent.ExecutionException;
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5
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6
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7 public abstract class FutureValue<V> {
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8
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9 private final FastFuture<V> ft = new FastFuture<V>(new Callable<V>() {
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10 public V call() throws Exception {
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11 return compute();
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12 }
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13 });
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15 public V get() throws ComputationException {
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16 ft.run();
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17 try {
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18 return ft.get();
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19 } catch(InterruptedException e) {
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20 throw new ComputationException(e);
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21 } catch(ExecutionException e) {
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22 throw ComputationException.newInstance(e);
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23 }
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24 }
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25
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26 protected abstract V compute() throws Exception;
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27 }